Swiftdiff options
| author | Remko Tronçon <git@el-tramo.be> | 2012-12-23 13:16:26 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2012-12-23 14:43:26 (GMT) |
| commit | 491ddd570a752cf9bda85933bed0c6942e39b1f9 (patch) | |
| tree | 10c25c1be8cc08d0497df1dccd56a10fbb30beee /3rdParty/Boost/src/boost/asio/detail/impl | |
| parent | da7d7a0ca71b80281aa9ff2526290b61ccb0cc60 (diff) | |
| download | swift-491ddd570a752cf9bda85933bed0c6942e39b1f9.zip swift-491ddd570a752cf9bda85933bed0c6942e39b1f9.tar.bz2 | |
Update Boost to 1.52.0.
Change-Id: I1e56bea2600bf2ed9c5b3aba8c4f9d2a0f350e77
Diffstat (limited to '3rdParty/Boost/src/boost/asio/detail/impl')
44 files changed, 3460 insertions, 408 deletions
diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/descriptor_ops.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/descriptor_ops.ipp index 9a2bb3b..6c3528f 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/descriptor_ops.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/descriptor_ops.ipp @@ -2,7 +2,7 @@ // detail/impl/descriptor_ops.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -43,8 +43,19 @@ int close(int d, state_type& state, boost::system::error_code& ec) int result = 0; if (d != -1) { - if (state & internal_non_blocking) + errno = 0; + result = error_wrapper(::close(d), ec); + + if (result != 0 + && (ec == boost::asio::error::would_block + || ec == boost::asio::error::try_again)) { + // According to UNIX Network Programming Vol. 1, it is possible for + // close() to fail with EWOULDBLOCK under certain circumstances. What + // isn't clear is the state of the descriptor after this error. The one + // current OS where this behaviour is seen, Windows, says that the socket + // remains open. Therefore we'll put the descriptor back into blocking + // mode and have another attempt at closing it. #if defined(__SYMBIAN32__) int flags = ::fcntl(d, F_GETFL, 0); if (flags >= 0) @@ -53,11 +64,11 @@ int close(int d, state_type& state, boost::system::error_code& ec) ioctl_arg_type arg = 0; ::ioctl(d, FIONBIO, &arg); #endif // defined(__SYMBIAN32__) - state &= ~internal_non_blocking; - } + state &= ~non_blocking; - errno = 0; - result = error_wrapper(::close(d), ec); + errno = 0; + result = error_wrapper(::close(d), ec); + } } if (result == 0) @@ -65,8 +76,49 @@ int close(int d, state_type& state, boost::system::error_code& ec) return result; } -bool set_internal_non_blocking(int d, - state_type& state, boost::system::error_code& ec) +bool set_user_non_blocking(int d, state_type& state, + bool value, boost::system::error_code& ec) +{ + if (d == -1) + { + ec = boost::asio::error::bad_descriptor; + return false; + } + + errno = 0; +#if defined(__SYMBIAN32__) + int result = error_wrapper(::fcntl(d, F_GETFL, 0), ec); + if (result >= 0) + { + errno = 0; + int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK)); + result = error_wrapper(::fcntl(d, F_SETFL, flag), ec); + } +#else // defined(__SYMBIAN32__) + ioctl_arg_type arg = (value ? 1 : 0); + int result = error_wrapper(::ioctl(d, FIONBIO, &arg), ec); +#endif // defined(__SYMBIAN32__) + + if (result >= 0) + { + ec = boost::system::error_code(); + if (value) + state |= user_set_non_blocking; + else + { + // Clearing the user-set non-blocking mode always overrides any + // internally-set non-blocking flag. Any subsequent asynchronous + // operations will need to re-enable non-blocking I/O. + state &= ~(user_set_non_blocking | internal_non_blocking); + } + return true; + } + + return false; +} + +bool set_internal_non_blocking(int d, state_type& state, + bool value, boost::system::error_code& ec) { if (d == -1) { @@ -74,23 +126,36 @@ bool set_internal_non_blocking(int d, return false; } + if (!value && (state & user_set_non_blocking)) + { + // It does not make sense to clear the internal non-blocking flag if the + // user still wants non-blocking behaviour. Return an error and let the + // caller figure out whether to update the user-set non-blocking flag. + ec = boost::asio::error::invalid_argument; + return false; + } + errno = 0; #if defined(__SYMBIAN32__) int result = error_wrapper(::fcntl(d, F_GETFL, 0), ec); if (result >= 0) { errno = 0; - result = error_wrapper(::fcntl(d, F_SETFL, result | O_NONBLOCK), ec); + int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK)); + result = error_wrapper(::fcntl(d, F_SETFL, flag), ec); } #else // defined(__SYMBIAN32__) - ioctl_arg_type arg = 1; + ioctl_arg_type arg = (value ? 1 : 0); int result = error_wrapper(::ioctl(d, FIONBIO, &arg), ec); #endif // defined(__SYMBIAN32__) if (result >= 0) { ec = boost::system::error_code(); - state |= internal_non_blocking; + if (value) + state |= internal_non_blocking; + else + state &= ~internal_non_blocking; return true; } @@ -138,7 +203,7 @@ std::size_t sync_read(int d, state_type state, buf* bufs, return 0; // Wait for descriptor to become ready. - if (descriptor_ops::poll_read(d, ec) < 0) + if (descriptor_ops::poll_read(d, 0, ec) < 0) return 0; } } @@ -215,7 +280,7 @@ std::size_t sync_write(int d, state_type state, const buf* bufs, return 0; // Wait for descriptor to become ready. - if (descriptor_ops::poll_write(d, ec) < 0) + if (descriptor_ops::poll_write(d, 0, ec) < 0) return 0; } } @@ -322,7 +387,7 @@ int fcntl(int d, long cmd, long arg, boost::system::error_code& ec) return result; } -int poll_read(int d, boost::system::error_code& ec) +int poll_read(int d, state_type state, boost::system::error_code& ec) { if (d == -1) { @@ -334,14 +399,18 @@ int poll_read(int d, boost::system::error_code& ec) fds.fd = d; fds.events = POLLIN; fds.revents = 0; + int timeout = (state & user_set_non_blocking) ? 0 : -1; errno = 0; - int result = error_wrapper(::poll(&fds, 1, -1), ec); - if (result >= 0) + int result = error_wrapper(::poll(&fds, 1, timeout), ec); + if (result == 0) + ec = (state & user_set_non_blocking) + ? boost::asio::error::would_block : boost::system::error_code(); + else if (result > 0) ec = boost::system::error_code(); return result; } -int poll_write(int d, boost::system::error_code& ec) +int poll_write(int d, state_type state, boost::system::error_code& ec) { if (d == -1) { @@ -353,9 +422,13 @@ int poll_write(int d, boost::system::error_code& ec) fds.fd = d; fds.events = POLLOUT; fds.revents = 0; + int timeout = (state & user_set_non_blocking) ? 0 : -1; errno = 0; - int result = error_wrapper(::poll(&fds, 1, -1), ec); - if (result >= 0) + int result = error_wrapper(::poll(&fds, 1, timeout), ec); + if (result == 0) + ec = (state & user_set_non_blocking) + ? boost::asio::error::would_block : boost::system::error_code(); + else if (result > 0) ec = boost::system::error_code(); return result; } diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/dev_poll_reactor.hpp b/3rdParty/Boost/src/boost/asio/detail/impl/dev_poll_reactor.hpp index a6b7078..12860af 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/dev_poll_reactor.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/dev_poll_reactor.hpp @@ -2,7 +2,7 @@ // detail/impl/dev_poll_reactor.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -40,7 +40,7 @@ void dev_poll_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue) template <typename Time_Traits> void dev_poll_reactor::schedule_timer(timer_queue<Time_Traits>& queue, const typename Time_Traits::time_type& time, - typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op) + typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op) { boost::asio::detail::mutex::scoped_lock lock(mutex_); @@ -58,11 +58,12 @@ void dev_poll_reactor::schedule_timer(timer_queue<Time_Traits>& queue, template <typename Time_Traits> std::size_t dev_poll_reactor::cancel_timer(timer_queue<Time_Traits>& queue, - typename timer_queue<Time_Traits>::per_timer_data& timer) + typename timer_queue<Time_Traits>::per_timer_data& timer, + std::size_t max_cancelled) { boost::asio::detail::mutex::scoped_lock lock(mutex_); op_queue<operation> ops; - std::size_t n = queue.cancel_timer(timer, ops); + std::size_t n = queue.cancel_timer(timer, ops, max_cancelled); lock.unlock(); io_service_.post_deferred_completions(ops); return n; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/dev_poll_reactor.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/dev_poll_reactor.ipp index b9d5e61..a648bf1 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/dev_poll_reactor.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/dev_poll_reactor.ipp @@ -2,7 +2,7 @@ // detail/impl/dev_poll_reactor.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -19,6 +19,7 @@ #if defined(BOOST_ASIO_HAS_DEV_POLL) +#include <boost/assert.hpp> #include <boost/asio/detail/dev_poll_reactor.hpp> #include <boost/asio/detail/throw_error.hpp> #include <boost/asio/error.hpp> @@ -38,7 +39,7 @@ dev_poll_reactor::dev_poll_reactor(boost::asio::io_service& io_service) shutdown_(false) { // Add the interrupter's descriptor to /dev/poll. - ::pollfd ev = { 0 }; + ::pollfd ev = { 0, 0, 0 }; ev.fd = interrupter_.read_descriptor(); ev.events = POLLIN | POLLERR; ev.revents = 0; @@ -63,8 +64,68 @@ void dev_poll_reactor::shutdown_service() op_queue_[i].get_all_operations(ops); timer_queues_.get_all_timers(ops); + + io_service_.abandon_operations(ops); } +// Helper class to re-register all descriptors with /dev/poll. +class dev_poll_reactor::fork_helper +{ +public: + fork_helper(dev_poll_reactor* reactor, short events) + : reactor_(reactor), events_(events) + { + } + + bool set(int descriptor) + { + ::pollfd& ev = reactor_->add_pending_event_change(descriptor); + ev.events = events_; + return true; + } + +private: + dev_poll_reactor* reactor_; + short events_; +}; + +void dev_poll_reactor::fork_service(boost::asio::io_service::fork_event fork_ev) +{ + if (fork_ev == boost::asio::io_service::fork_child) + { + detail::mutex::scoped_lock lock(mutex_); + + if (dev_poll_fd_ != -1) + ::close(dev_poll_fd_); + dev_poll_fd_ = -1; + dev_poll_fd_ = do_dev_poll_create(); + + interrupter_.recreate(); + + // Add the interrupter's descriptor to /dev/poll. + ::pollfd ev = { 0, 0, 0 }; + ev.fd = interrupter_.read_descriptor(); + ev.events = POLLIN | POLLERR; + ev.revents = 0; + ::write(dev_poll_fd_, &ev, sizeof(ev)); + + // Re-register all descriptors with /dev/poll. The changes will be written + // to the /dev/poll descriptor the next time the reactor is run. + op_queue<operation> ops; + fork_helper read_op_helper(this, POLLERR | POLLHUP | POLLIN); + op_queue_[read_op].get_descriptors(read_op_helper, ops); + fork_helper write_op_helper(this, POLLERR | POLLHUP | POLLOUT); + op_queue_[write_op].get_descriptors(write_op_helper, ops); + fork_helper except_op_helper(this, POLLERR | POLLHUP | POLLPRI); + op_queue_[except_op].get_descriptors(except_op_helper, ops); + interrupter_.interrupt(); + + // The ops op_queue will always be empty because the fork_helper's set() + // member function never returns false. + BOOST_ASSERT(ops.empty()); + } +} + void dev_poll_reactor::init_task() { io_service_.init_task(); @@ -75,6 +136,32 @@ int dev_poll_reactor::register_descriptor(socket_type, per_descriptor_data&) return 0; } +int dev_poll_reactor::register_internal_descriptor(int op_type, + socket_type descriptor, per_descriptor_data&, reactor_op* op) +{ + boost::asio::detail::mutex::scoped_lock lock(mutex_); + + op_queue_[op_type].enqueue_operation(descriptor, op); + ::pollfd& ev = add_pending_event_change(descriptor); + ev.events = POLLERR | POLLHUP; + switch (op_type) + { + case read_op: ev.events |= POLLIN; break; + case write_op: ev.events |= POLLOUT; break; + case except_op: ev.events |= POLLPRI; break; + default: break; + } + interrupter_.interrupt(); + + return 0; +} + +void dev_poll_reactor::move_descriptor(socket_type, + dev_poll_reactor::per_descriptor_data&, + dev_poll_reactor::per_descriptor_data&) +{ +} + void dev_poll_reactor::start_op(int op_type, socket_type descriptor, dev_poll_reactor::per_descriptor_data&, reactor_op* op, bool allow_speculative) @@ -129,8 +216,8 @@ void dev_poll_reactor::cancel_ops(socket_type descriptor, cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted); } -void dev_poll_reactor::close_descriptor(socket_type descriptor, - dev_poll_reactor::per_descriptor_data&) +void dev_poll_reactor::deregister_descriptor(socket_type descriptor, + dev_poll_reactor::per_descriptor_data&, bool) { boost::asio::detail::mutex::scoped_lock lock(mutex_); @@ -143,6 +230,26 @@ void dev_poll_reactor::close_descriptor(socket_type descriptor, cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted); } +void dev_poll_reactor::deregister_internal_descriptor( + socket_type descriptor, dev_poll_reactor::per_descriptor_data&) +{ + boost::asio::detail::mutex::scoped_lock lock(mutex_); + + // Remove the descriptor from /dev/poll. Since this function is only called + // during a fork, we can apply the change immediately. + ::pollfd ev = { 0, 0, 0 }; + ev.fd = descriptor; + ev.events = POLLREMOVE; + ev.revents = 0; + ::write(dev_poll_fd_, &ev, sizeof(ev)); + + // Destroy all operations associated with the descriptor. + op_queue<operation> ops; + boost::system::error_code ec; + for (int i = 0; i < max_ops; ++i) + op_queue_[i].cancel_operations(descriptor, ops, ec); +} + void dev_poll_reactor::run(bool block, op_queue<operation>& ops) { boost::asio::detail::mutex::scoped_lock lock(mutex_); @@ -179,8 +286,8 @@ void dev_poll_reactor::run(bool block, op_queue<operation>& ops) lock.unlock(); // Block on the /dev/poll descriptor. - ::pollfd events[128] = { { 0 } }; - ::dvpoll dp = { 0 }; + ::pollfd events[128] = { { 0, 0, 0 } }; + ::dvpoll dp = { 0, 0, 0 }; dp.dp_fds = events; dp.dp_nfds = 128; dp.dp_timeout = timeout; @@ -228,7 +335,7 @@ void dev_poll_reactor::run(bool block, op_queue<operation>& ops) // The poll operation can produce POLLHUP or POLLERR events when there // is no operation pending, so if we do not remove the descriptor we // can end up in a tight polling loop. - ::pollfd ev = { 0 }; + ::pollfd ev = { 0, 0, 0 }; ev.fd = descriptor; ev.events = POLLREMOVE; ev.revents = 0; @@ -236,7 +343,7 @@ void dev_poll_reactor::run(bool block, op_queue<operation>& ops) } else { - ::pollfd ev = { 0 }; + ::pollfd ev = { 0, 0, 0 }; ev.fd = descriptor; ev.events = POLLERR | POLLHUP; if (more_reads) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/epoll_reactor.hpp b/3rdParty/Boost/src/boost/asio/detail/impl/epoll_reactor.hpp index 0339cfd..215f484 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/epoll_reactor.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/epoll_reactor.hpp @@ -2,7 +2,7 @@ // detail/impl/epoll_reactor.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -38,7 +38,7 @@ void epoll_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue) template <typename Time_Traits> void epoll_reactor::schedule_timer(timer_queue<Time_Traits>& queue, const typename Time_Traits::time_type& time, - typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op) + typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op) { mutex::scoped_lock lock(mutex_); @@ -56,11 +56,12 @@ void epoll_reactor::schedule_timer(timer_queue<Time_Traits>& queue, template <typename Time_Traits> std::size_t epoll_reactor::cancel_timer(timer_queue<Time_Traits>& queue, - typename timer_queue<Time_Traits>::per_timer_data& timer) + typename timer_queue<Time_Traits>::per_timer_data& timer, + std::size_t max_cancelled) { mutex::scoped_lock lock(mutex_); op_queue<operation> ops; - std::size_t n = queue.cancel_timer(timer, ops); + std::size_t n = queue.cancel_timer(timer, ops, max_cancelled); lock.unlock(); io_service_.post_deferred_completions(ops); return n; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/epoll_reactor.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/epoll_reactor.ipp index 5afb891..073bd08 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/epoll_reactor.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/epoll_reactor.ipp @@ -2,7 +2,7 @@ // detail/impl/epoll_reactor.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -39,13 +39,9 @@ epoll_reactor::epoll_reactor(boost::asio::io_service& io_service) : boost::asio::detail::service_base<epoll_reactor>(io_service), io_service_(use_service<io_service_impl>(io_service)), mutex_(), - epoll_fd_(do_epoll_create()), -#if defined(BOOST_ASIO_HAS_TIMERFD) - timer_fd_(timerfd_create(CLOCK_MONOTONIC, 0)), -#else // defined(BOOST_ASIO_HAS_TIMERFD) - timer_fd_(-1), -#endif // defined(BOOST_ASIO_HAS_TIMERFD) interrupter_(), + epoll_fd_(do_epoll_create()), + timer_fd_(do_timerfd_create()), shutdown_(false) { // Add the interrupter's descriptor to epoll. @@ -66,7 +62,8 @@ epoll_reactor::epoll_reactor(boost::asio::io_service& io_service) epoll_reactor::~epoll_reactor() { - close(epoll_fd_); + if (epoll_fd_ != -1) + close(epoll_fd_); if (timer_fd_ != -1) close(timer_fd_); } @@ -88,6 +85,59 @@ void epoll_reactor::shutdown_service() } timer_queues_.get_all_timers(ops); + + io_service_.abandon_operations(ops); +} + +void epoll_reactor::fork_service(boost::asio::io_service::fork_event fork_ev) +{ + if (fork_ev == boost::asio::io_service::fork_child) + { + if (epoll_fd_ != -1) + ::close(epoll_fd_); + epoll_fd_ = -1; + epoll_fd_ = do_epoll_create(); + + if (timer_fd_ != -1) + ::close(timer_fd_); + timer_fd_ = -1; + timer_fd_ = do_timerfd_create(); + + interrupter_.recreate(); + + // Add the interrupter's descriptor to epoll. + epoll_event ev = { 0, { 0 } }; + ev.events = EPOLLIN | EPOLLERR | EPOLLET; + ev.data.ptr = &interrupter_; + epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, interrupter_.read_descriptor(), &ev); + interrupter_.interrupt(); + + // Add the timer descriptor to epoll. + if (timer_fd_ != -1) + { + ev.events = EPOLLIN | EPOLLERR; + ev.data.ptr = &timer_fd_; + epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, timer_fd_, &ev); + } + + update_timeout(); + + // Re-register all descriptors with epoll. + mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_); + for (descriptor_state* state = registered_descriptors_.first(); + state != 0; state = state->next_) + { + ev.events = state->registered_events_; + ev.data.ptr = state; + int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, state->descriptor_, &ev); + if (result != 0) + { + boost::system::error_code ec(errno, + boost::asio::error::get_system_category()); + boost::asio::detail::throw_error(ec, "epoll re-registration"); + } + } + } } void epoll_reactor::init_task() @@ -98,15 +148,19 @@ void epoll_reactor::init_task() int epoll_reactor::register_descriptor(socket_type descriptor, epoll_reactor::per_descriptor_data& descriptor_data) { - mutex::scoped_lock lock(registered_descriptors_mutex_); + descriptor_data = allocate_descriptor_state(); - descriptor_data = registered_descriptors_.alloc(); - descriptor_data->shutdown_ = false; + { + mutex::scoped_lock descriptor_lock(descriptor_data->mutex_); - lock.unlock(); + descriptor_data->reactor_ = this; + descriptor_data->descriptor_ = descriptor; + descriptor_data->shutdown_ = false; + } epoll_event ev = { 0, { 0 } }; - ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLOUT | EPOLLPRI | EPOLLET; + ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLPRI | EPOLLET; + descriptor_data->registered_events_ = ev.events; ev.data.ptr = descriptor_data; int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, descriptor, &ev); if (result != 0) @@ -115,6 +169,40 @@ int epoll_reactor::register_descriptor(socket_type descriptor, return 0; } +int epoll_reactor::register_internal_descriptor( + int op_type, socket_type descriptor, + epoll_reactor::per_descriptor_data& descriptor_data, reactor_op* op) +{ + descriptor_data = allocate_descriptor_state(); + + { + mutex::scoped_lock descriptor_lock(descriptor_data->mutex_); + + descriptor_data->reactor_ = this; + descriptor_data->descriptor_ = descriptor; + descriptor_data->shutdown_ = false; + descriptor_data->op_queue_[op_type].push(op); + } + + epoll_event ev = { 0, { 0 } }; + ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLPRI | EPOLLET; + descriptor_data->registered_events_ = ev.events; + ev.data.ptr = descriptor_data; + int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, descriptor, &ev); + if (result != 0) + return errno; + + return 0; +} + +void epoll_reactor::move_descriptor(socket_type, + epoll_reactor::per_descriptor_data& target_descriptor_data, + epoll_reactor::per_descriptor_data& source_descriptor_data) +{ + target_descriptor_data = source_descriptor_data; + source_descriptor_data = 0; +} + void epoll_reactor::start_op(int op_type, socket_type descriptor, epoll_reactor::per_descriptor_data& descriptor_data, reactor_op* op, bool allow_speculative) @@ -146,12 +234,37 @@ void epoll_reactor::start_op(int op_type, socket_type descriptor, io_service_.post_immediate_completion(op); return; } + + if (op_type == write_op) + { + if ((descriptor_data->registered_events_ & EPOLLOUT) == 0) + { + epoll_event ev = { 0, { 0 } }; + ev.events = descriptor_data->registered_events_ | EPOLLOUT; + ev.data.ptr = descriptor_data; + if (epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, descriptor, &ev) == 0) + { + descriptor_data->registered_events_ |= ev.events; + } + else + { + op->ec_ = boost::system::error_code(errno, + boost::asio::error::get_system_category()); + io_service_.post_immediate_completion(op); + return; + } + } + } } else { + if (op_type == write_op) + { + descriptor_data->registered_events_ |= EPOLLOUT; + } + epoll_event ev = { 0, { 0 } }; - ev.events = EPOLLIN | EPOLLERR | EPOLLHUP - | EPOLLOUT | EPOLLPRI | EPOLLET; + ev.events = descriptor_data->registered_events_; ev.data.ptr = descriptor_data; epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, descriptor, &ev); } @@ -185,19 +298,26 @@ void epoll_reactor::cancel_ops(socket_type, io_service_.post_deferred_completions(ops); } -void epoll_reactor::close_descriptor(socket_type, - epoll_reactor::per_descriptor_data& descriptor_data) +void epoll_reactor::deregister_descriptor(socket_type descriptor, + epoll_reactor::per_descriptor_data& descriptor_data, bool closing) { if (!descriptor_data) return; mutex::scoped_lock descriptor_lock(descriptor_data->mutex_); - mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_); if (!descriptor_data->shutdown_) { - // Remove the descriptor from the set of known descriptors. The descriptor - // will be automatically removed from the epoll set when it is closed. + if (closing) + { + // The descriptor will be automatically removed from the epoll set when + // it is closed. + } + else + { + epoll_event ev = { 0, { 0 } }; + epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, descriptor, &ev); + } op_queue<operation> ops; for (int i = 0; i < max_ops; ++i) @@ -210,21 +330,53 @@ void epoll_reactor::close_descriptor(socket_type, } } + descriptor_data->descriptor_ = -1; descriptor_data->shutdown_ = true; descriptor_lock.unlock(); - registered_descriptors_.free(descriptor_data); + free_descriptor_state(descriptor_data); descriptor_data = 0; - descriptors_lock.unlock(); - io_service_.post_deferred_completions(ops); } } +void epoll_reactor::deregister_internal_descriptor(socket_type descriptor, + epoll_reactor::per_descriptor_data& descriptor_data) +{ + if (!descriptor_data) + return; + + mutex::scoped_lock descriptor_lock(descriptor_data->mutex_); + + if (!descriptor_data->shutdown_) + { + epoll_event ev = { 0, { 0 } }; + epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, descriptor, &ev); + + op_queue<operation> ops; + for (int i = 0; i < max_ops; ++i) + ops.push(descriptor_data->op_queue_[i]); + + descriptor_data->descriptor_ = -1; + descriptor_data->shutdown_ = true; + + descriptor_lock.unlock(); + + free_descriptor_state(descriptor_data); + descriptor_data = 0; + } +} + void epoll_reactor::run(bool block, op_queue<operation>& ops) { + // This code relies on the fact that the task_io_service queues the reactor + // task behind all descriptor operations generated by this function. This + // means, that by the time we reach this point, any previously returned + // descriptor operations have already been dequeued. Therefore it is now safe + // for us to reuse and return them for the task_io_service to queue again. + // Calculate a timeout only if timerfd is not used. int timeout; if (timer_fd_ != -1) @@ -271,28 +423,12 @@ void epoll_reactor::run(bool block, op_queue<operation>& ops) #endif // defined(BOOST_ASIO_HAS_TIMERFD) else { + // The descriptor operation doesn't count as work in and of itself, so we + // don't call work_started() here. This still allows the io_service to + // stop if the only remaining operations are descriptor operations. descriptor_state* descriptor_data = static_cast<descriptor_state*>(ptr); - mutex::scoped_lock descriptor_lock(descriptor_data->mutex_); - - // Exception operations must be processed first to ensure that any - // out-of-band data is read before normal data. - static const int flag[max_ops] = { EPOLLIN, EPOLLOUT, EPOLLPRI }; - for (int j = max_ops - 1; j >= 0; --j) - { - if (events[i].events & (flag[j] | EPOLLERR | EPOLLHUP)) - { - while (reactor_op* op = descriptor_data->op_queue_[j].front()) - { - if (op->perform()) - { - descriptor_data->op_queue_[j].pop(); - ops.push(op); - } - else - break; - } - } - } + descriptor_data->set_ready_events(events[i].events); + ops.push(descriptor_data); } } @@ -323,16 +459,65 @@ void epoll_reactor::interrupt() int epoll_reactor::do_epoll_create() { - int fd = epoll_create(epoll_size); +#if defined(EPOLL_CLOEXEC) + int fd = epoll_create1(EPOLL_CLOEXEC); +#else // defined(EPOLL_CLOEXEC) + int fd = -1; + errno = EINVAL; +#endif // defined(EPOLL_CLOEXEC) + + if (fd == -1 && (errno == EINVAL || errno == ENOSYS)) + { + fd = epoll_create(epoll_size); + if (fd != -1) + ::fcntl(fd, F_SETFD, FD_CLOEXEC); + } + if (fd == -1) { boost::system::error_code ec(errno, boost::asio::error::get_system_category()); boost::asio::detail::throw_error(ec, "epoll"); } + return fd; } +int epoll_reactor::do_timerfd_create() +{ +#if defined(BOOST_ASIO_HAS_TIMERFD) +# if defined(TFD_CLOEXEC) + int fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC); +# else // defined(TFD_CLOEXEC) + int fd = -1; + errno = EINVAL; +# endif // defined(TFD_CLOEXEC) + + if (fd == -1 && errno == EINVAL) + { + fd = timerfd_create(CLOCK_MONOTONIC, 0); + if (fd != -1) + ::fcntl(fd, F_SETFD, FD_CLOEXEC); + } + + return fd; +#else // defined(BOOST_ASIO_HAS_TIMERFD) + return -1; +#endif // defined(BOOST_ASIO_HAS_TIMERFD) +} + +epoll_reactor::descriptor_state* epoll_reactor::allocate_descriptor_state() +{ + mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_); + return registered_descriptors_.alloc(); +} + +void epoll_reactor::free_descriptor_state(epoll_reactor::descriptor_state* s) +{ + mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_); + registered_descriptors_.free(s); +} + void epoll_reactor::do_add_timer_queue(timer_queue_base& queue) { mutex::scoped_lock lock(mutex_); @@ -381,6 +566,92 @@ int epoll_reactor::get_timeout(itimerspec& ts) } #endif // defined(BOOST_ASIO_HAS_TIMERFD) +struct epoll_reactor::perform_io_cleanup_on_block_exit +{ + explicit perform_io_cleanup_on_block_exit(epoll_reactor* r) + : reactor_(r), first_op_(0) + { + } + + ~perform_io_cleanup_on_block_exit() + { + if (first_op_) + { + // Post the remaining completed operations for invocation. + if (!ops_.empty()) + reactor_->io_service_.post_deferred_completions(ops_); + + // A user-initiated operation has completed, but there's no need to + // explicitly call work_finished() here. Instead, we'll take advantage of + // the fact that the task_io_service will call work_finished() once we + // return. + } + else + { + // No user-initiated operations have completed, so we need to compensate + // for the work_finished() call that the task_io_service will make once + // this operation returns. + reactor_->io_service_.work_started(); + } + } + + epoll_reactor* reactor_; + op_queue<operation> ops_; + operation* first_op_; +}; + +epoll_reactor::descriptor_state::descriptor_state() + : operation(&epoll_reactor::descriptor_state::do_complete) +{ +} + +operation* epoll_reactor::descriptor_state::perform_io(uint32_t events) +{ + perform_io_cleanup_on_block_exit io_cleanup(reactor_); + mutex::scoped_lock descriptor_lock(mutex_); + + // Exception operations must be processed first to ensure that any + // out-of-band data is read before normal data. + static const int flag[max_ops] = { EPOLLIN, EPOLLOUT, EPOLLPRI }; + for (int j = max_ops - 1; j >= 0; --j) + { + if (events & (flag[j] | EPOLLERR | EPOLLHUP)) + { + while (reactor_op* op = op_queue_[j].front()) + { + if (op->perform()) + { + op_queue_[j].pop(); + io_cleanup.ops_.push(op); + } + else + break; + } + } + } + + // The first operation will be returned for completion now. The others will + // be posted for later by the io_cleanup object's destructor. + io_cleanup.first_op_ = io_cleanup.ops_.front(); + io_cleanup.ops_.pop(); + return io_cleanup.first_op_; +} + +void epoll_reactor::descriptor_state::do_complete( + io_service_impl* owner, operation* base, + const boost::system::error_code& ec, std::size_t bytes_transferred) +{ + if (owner) + { + descriptor_state* descriptor_data = static_cast<descriptor_state*>(base); + uint32_t events = static_cast<uint32_t>(bytes_transferred); + if (operation* op = descriptor_data->perform_io(events)) + { + op->complete(*owner, ec, 0); + } + } +} + } // namespace detail } // namespace asio } // namespace boost diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/eventfd_select_interrupter.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/eventfd_select_interrupter.ipp index d270b31..22154bb 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/eventfd_select_interrupter.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/eventfd_select_interrupter.ipp @@ -2,7 +2,7 @@ // detail/impl/eventfd_select_interrupter.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // Copyright (c) 2008 Roelof Naude (roelof.naude at gmail dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying @@ -40,24 +40,48 @@ namespace detail { eventfd_select_interrupter::eventfd_select_interrupter() { + open_descriptors(); +} + +void eventfd_select_interrupter::open_descriptors() +{ #if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 write_descriptor_ = read_descriptor_ = syscall(__NR_eventfd, 0); -#else // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 - write_descriptor_ = read_descriptor_ = ::eventfd(0, 0); -#endif // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 if (read_descriptor_ != -1) { ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK); + ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC); } - else +#else // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 +# if defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK) + write_descriptor_ = read_descriptor_ = + ::eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK); +# else // defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK) + errno = EINVAL; + write_descriptor_ = read_descriptor_ = -1; +# endif // defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK) + if (read_descriptor_ == -1 && errno == EINVAL) + { + write_descriptor_ = read_descriptor_ = ::eventfd(0, 0); + if (read_descriptor_ != -1) + { + ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK); + ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC); + } + } +#endif // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 + + if (read_descriptor_ == -1) { int pipe_fds[2]; if (pipe(pipe_fds) == 0) { read_descriptor_ = pipe_fds[0]; ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK); + ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC); write_descriptor_ = pipe_fds[1]; ::fcntl(write_descriptor_, F_SETFL, O_NONBLOCK); + ::fcntl(write_descriptor_, F_SETFD, FD_CLOEXEC); } else { @@ -70,12 +94,27 @@ eventfd_select_interrupter::eventfd_select_interrupter() eventfd_select_interrupter::~eventfd_select_interrupter() { + close_descriptors(); +} + +void eventfd_select_interrupter::close_descriptors() +{ if (write_descriptor_ != -1 && write_descriptor_ != read_descriptor_) ::close(write_descriptor_); if (read_descriptor_ != -1) ::close(read_descriptor_); } +void eventfd_select_interrupter::recreate() +{ + close_descriptors(); + + write_descriptor_ = -1; + read_descriptor_ = -1; + + open_descriptors(); +} + void eventfd_select_interrupter::interrupt() { uint64_t counter(1UL); diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/handler_tracking.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/handler_tracking.ipp new file mode 100644 index 0000000..70342e3 --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/detail/impl/handler_tracking.ipp @@ -0,0 +1,299 @@ +// +// detail/impl/handler_tracking.ipp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +#ifndef BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP +#define BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <boost/asio/detail/config.hpp> + +#if defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING) + +#include <cstdarg> +#include <cstdio> +#include <boost/asio/detail/handler_tracking.hpp> + +#include <boost/asio/detail/push_options.hpp> +#include <boost/date_time/posix_time/posix_time_types.hpp> +#include <boost/asio/detail/pop_options.hpp> + +#if !defined(BOOST_WINDOWS) +# include <unistd.h> +#endif // !defined(BOOST_WINDOWS) + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +struct handler_tracking::tracking_state +{ + static_mutex mutex_; + boost::uint64_t next_id_; + tss_ptr<completion>* current_completion_; +}; + +handler_tracking::tracking_state* handler_tracking::get_state() +{ + static tracking_state state = { BOOST_ASIO_STATIC_MUTEX_INIT, 1, 0 }; + return &state; +} + +void handler_tracking::init() +{ + static tracking_state* state = get_state(); + + state->mutex_.init(); + + static_mutex::scoped_lock lock(state->mutex_); + if (state->current_completion_ == 0) + state->current_completion_ = new tss_ptr<completion>; +} + +void handler_tracking::creation(handler_tracking::tracked_handler* h, + const char* object_type, void* object, const char* op_name) +{ + static tracking_state* state = get_state(); + + static_mutex::scoped_lock lock(state->mutex_); + h->id_ = state->next_id_++; + lock.unlock(); + + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + boost::uint64_t current_id = 0; + if (completion* current_completion = *state->current_completion_) + current_id = current_completion->id_; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|%I64u*%I64u|%.20s@%p.%.50s\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|%llu*%llu|%.20s@%p.%.50s\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), + current_id, h->id_, object_type, object, op_name); +} + +handler_tracking::completion::completion(handler_tracking::tracked_handler* h) + : id_(h->id_), + invoked_(false), + next_(*get_state()->current_completion_) +{ + *get_state()->current_completion_ = this; +} + +handler_tracking::completion::~completion() +{ + if (id_) + { + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|%c%I64u|\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|%c%llu|\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), + invoked_ ? '!' : '~', id_); + } + + *get_state()->current_completion_ = next_; +} + +void handler_tracking::completion::invocation_begin() +{ + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|>%I64u|\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|>%llu|\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), id_); + + invoked_ = true; +} + +void handler_tracking::completion::invocation_begin( + const boost::system::error_code& ec) +{ + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|>%llu|ec=%.20s:%d\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), + id_, ec.category().name(), ec.value()); + + invoked_ = true; +} + +void handler_tracking::completion::invocation_begin( + const boost::system::error_code& ec, std::size_t bytes_transferred) +{ + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,bytes_transferred=%I64u\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,bytes_transferred=%llu\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), + id_, ec.category().name(), ec.value(), + static_cast<boost::uint64_t>(bytes_transferred)); + + invoked_ = true; +} + +void handler_tracking::completion::invocation_begin( + const boost::system::error_code& ec, int signal_number) +{ + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,signal_number=%d\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,signal_number=%d\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), + id_, ec.category().name(), ec.value(), signal_number); + + invoked_ = true; +} + +void handler_tracking::completion::invocation_begin( + const boost::system::error_code& ec, const char* arg) +{ + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,%.50s\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,%.50s\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), + id_, ec.category().name(), ec.value(), arg); + + invoked_ = true; +} + +void handler_tracking::completion::invocation_end() +{ + if (id_) + { + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|<%I64u|\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|<%llu|\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), id_); + + id_ = 0; + } +} + +void handler_tracking::operation(const char* object_type, + void* object, const char* op_name) +{ + static tracking_state* state = get_state(); + + boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1)); + boost::posix_time::time_duration now = + boost::posix_time::microsec_clock::universal_time() - epoch; + + unsigned long long current_id = 0; + if (completion* current_completion = *state->current_completion_) + current_id = current_completion->id_; + + write_line( +#if defined(BOOST_WINDOWS) + "@asio|%I64u.%06I64u|%I64u|%.20s@%p.%.50s\n", +#else // defined(BOOST_WINDOWS) + "@asio|%llu.%06llu|%llu|%.20s@%p.%.50s\n", +#endif // defined(BOOST_WINDOWS) + static_cast<boost::uint64_t>(now.total_seconds()), + static_cast<boost::uint64_t>(now.total_microseconds() % 1000000), + current_id, object_type, object, op_name); +} + +void handler_tracking::write_line(const char* format, ...) +{ + using namespace std; // For sprintf (or equivalent). + + va_list args; + va_start(args, format); + + char line[256] = ""; +#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE) + int length = vsprintf_s(line, sizeof(line), format, args); +#else // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE) + int length = vsprintf(line, format, args); +#endif // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE) + + va_end(args); + +#if defined(BOOST_WINDOWS) + HANDLE stderr_handle = ::GetStdHandle(STD_ERROR_HANDLE); + DWORD bytes_written = 0; + ::WriteFile(stderr_handle, line, length, &bytes_written, 0); +#else // defined(BOOST_WINDOWS) + ::write(STDERR_FILENO, line, length); +#endif // defined(BOOST_WINDOWS) +} + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING) + +#endif // BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/kqueue_reactor.hpp b/3rdParty/Boost/src/boost/asio/detail/impl/kqueue_reactor.hpp index 779f272..d3445cd 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/kqueue_reactor.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/kqueue_reactor.hpp @@ -2,7 +2,7 @@ // detail/impl/kqueue_reactor.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // Copyright (c) 2005 Stefan Arentz (stefan at soze dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying @@ -42,7 +42,7 @@ void kqueue_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue) template <typename Time_Traits> void kqueue_reactor::schedule_timer(timer_queue<Time_Traits>& queue, const typename Time_Traits::time_type& time, - typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op) + typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op) { boost::asio::detail::mutex::scoped_lock lock(mutex_); @@ -60,11 +60,12 @@ void kqueue_reactor::schedule_timer(timer_queue<Time_Traits>& queue, template <typename Time_Traits> std::size_t kqueue_reactor::cancel_timer(timer_queue<Time_Traits>& queue, - typename timer_queue<Time_Traits>::per_timer_data& timer) + typename timer_queue<Time_Traits>::per_timer_data& timer, + std::size_t max_cancelled) { boost::asio::detail::mutex::scoped_lock lock(mutex_); op_queue<operation> ops; - std::size_t n = queue.cancel_timer(timer, ops); + std::size_t n = queue.cancel_timer(timer, ops, max_cancelled); lock.unlock(); io_service_.post_deferred_completions(ops); return n; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/kqueue_reactor.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/kqueue_reactor.ipp index 3ac9eae..a819eb9 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/kqueue_reactor.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/kqueue_reactor.ipp @@ -2,7 +2,7 @@ // detail/impl/kqueue_reactor.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // Copyright (c) 2005 Stefan Arentz (stefan at soze dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying @@ -28,8 +28,8 @@ #if defined(__NetBSD__) # define BOOST_ASIO_KQUEUE_EV_SET(ev, ident, filt, flags, fflags, data, udata) \ - EV_SET(ev, ident, filt, flags, fflags, \ - data, reinterpret_cast<intptr_t>(udata)) + EV_SET(ev, ident, filt, flags, fflags, data, \ + reinterpret_cast<intptr_t>(static_cast<void*>(udata))) #else # define BOOST_ASIO_KQUEUE_EV_SET(ev, ident, filt, flags, fflags, data, udata) \ EV_SET(ev, ident, filt, flags, fflags, data, udata) @@ -75,6 +75,47 @@ void kqueue_reactor::shutdown_service() } timer_queues_.get_all_timers(ops); + + io_service_.abandon_operations(ops); +} + +void kqueue_reactor::fork_service(boost::asio::io_service::fork_event fork_ev) +{ + if (fork_ev == boost::asio::io_service::fork_child) + { + // The kqueue descriptor is automatically closed in the child. + kqueue_fd_ = -1; + kqueue_fd_ = do_kqueue_create(); + + interrupter_.recreate(); + + // Re-register all descriptors with kqueue. + mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_); + for (descriptor_state* state = registered_descriptors_.first(); + state != 0; state = state->next_) + { + struct kevent events[2]; + int num_events = 0; + + if (!state->op_queue_[read_op].empty()) + BOOST_ASIO_KQUEUE_EV_SET(&events[num_events++], state->descriptor_, + EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, state); + else if (!state->op_queue_[except_op].empty()) + BOOST_ASIO_KQUEUE_EV_SET(&events[num_events++], state->descriptor_, + EVFILT_READ, EV_ADD | EV_CLEAR, EV_OOBAND, 0, state); + + if (!state->op_queue_[write_op].empty()) + BOOST_ASIO_KQUEUE_EV_SET(&events[num_events++], state->descriptor_, + EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, state); + + if (num_events && ::kevent(kqueue_fd_, events, num_events, 0, 0, 0) == -1) + { + boost::system::error_code error(errno, + boost::asio::error::get_system_category()); + boost::asio::detail::throw_error(error); + } + } + } } void kqueue_reactor::init_task() @@ -82,17 +123,60 @@ void kqueue_reactor::init_task() io_service_.init_task(); } -int kqueue_reactor::register_descriptor(socket_type, +int kqueue_reactor::register_descriptor(socket_type descriptor, kqueue_reactor::per_descriptor_data& descriptor_data) { - mutex::scoped_lock lock(registered_descriptors_mutex_); + descriptor_data = allocate_descriptor_state(); + + mutex::scoped_lock lock(descriptor_data->mutex_); + + descriptor_data->descriptor_ = descriptor; + descriptor_data->shutdown_ = false; + + return 0; +} + +int kqueue_reactor::register_internal_descriptor( + int op_type, socket_type descriptor, + kqueue_reactor::per_descriptor_data& descriptor_data, reactor_op* op) +{ + descriptor_data = allocate_descriptor_state(); - descriptor_data = registered_descriptors_.alloc(); + mutex::scoped_lock lock(descriptor_data->mutex_); + + descriptor_data->descriptor_ = descriptor; descriptor_data->shutdown_ = false; + descriptor_data->op_queue_[op_type].push(op); + + struct kevent event; + switch (op_type) + { + case read_op: + BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_READ, + EV_ADD | EV_CLEAR, 0, 0, descriptor_data); + break; + case write_op: + BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_WRITE, + EV_ADD | EV_CLEAR, 0, 0, descriptor_data); + break; + case except_op: + BOOST_ASIO_KQUEUE_EV_SET(&event, descriptor, EVFILT_READ, + EV_ADD | EV_CLEAR, EV_OOBAND, 0, descriptor_data); + break; + } + ::kevent(kqueue_fd_, &event, 1, 0, 0, 0); return 0; } +void kqueue_reactor::move_descriptor(socket_type, + kqueue_reactor::per_descriptor_data& target_descriptor_data, + kqueue_reactor::per_descriptor_data& source_descriptor_data) +{ + target_descriptor_data = source_descriptor_data; + source_descriptor_data = 0; +} + void kqueue_reactor::start_op(int op_type, socket_type descriptor, kqueue_reactor::per_descriptor_data& descriptor_data, reactor_op* op, bool allow_speculative) @@ -187,19 +271,30 @@ void kqueue_reactor::cancel_ops(socket_type, io_service_.post_deferred_completions(ops); } -void kqueue_reactor::close_descriptor(socket_type, - kqueue_reactor::per_descriptor_data& descriptor_data) +void kqueue_reactor::deregister_descriptor(socket_type descriptor, + kqueue_reactor::per_descriptor_data& descriptor_data, bool closing) { if (!descriptor_data) return; mutex::scoped_lock descriptor_lock(descriptor_data->mutex_); - mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_); if (!descriptor_data->shutdown_) { - // Remove the descriptor from the set of known descriptors. The descriptor - // will be automatically removed from the kqueue set when it is closed. + if (closing) + { + // The descriptor will be automatically removed from the kqueue when it + // is closed. + } + else + { + struct kevent events[2]; + BOOST_ASIO_KQUEUE_EV_SET(&events[0], descriptor, + EVFILT_READ, EV_DELETE, 0, 0, 0); + BOOST_ASIO_KQUEUE_EV_SET(&events[1], descriptor, + EVFILT_WRITE, EV_DELETE, 0, 0, 0); + ::kevent(kqueue_fd_, events, 2, 0, 0, 0); + } op_queue<operation> ops; for (int i = 0; i < max_ops; ++i) @@ -212,19 +307,49 @@ void kqueue_reactor::close_descriptor(socket_type, } } + descriptor_data->descriptor_ = -1; descriptor_data->shutdown_ = true; descriptor_lock.unlock(); - registered_descriptors_.free(descriptor_data); + free_descriptor_state(descriptor_data); descriptor_data = 0; - descriptors_lock.unlock(); - io_service_.post_deferred_completions(ops); } } +void kqueue_reactor::deregister_internal_descriptor(socket_type descriptor, + kqueue_reactor::per_descriptor_data& descriptor_data) +{ + if (!descriptor_data) + return; + + mutex::scoped_lock descriptor_lock(descriptor_data->mutex_); + + if (!descriptor_data->shutdown_) + { + struct kevent events[2]; + BOOST_ASIO_KQUEUE_EV_SET(&events[0], descriptor, + EVFILT_READ, EV_DELETE, 0, 0, 0); + BOOST_ASIO_KQUEUE_EV_SET(&events[1], descriptor, + EVFILT_WRITE, EV_DELETE, 0, 0, 0); + ::kevent(kqueue_fd_, events, 2, 0, 0, 0); + + op_queue<operation> ops; + for (int i = 0; i < max_ops; ++i) + ops.push(descriptor_data->op_queue_[i]); + + descriptor_data->descriptor_ = -1; + descriptor_data->shutdown_ = true; + + descriptor_lock.unlock(); + + free_descriptor_state(descriptor_data); + descriptor_data = 0; + } +} + void kqueue_reactor::run(bool block, op_queue<operation>& ops) { mutex::scoped_lock lock(mutex_); @@ -354,6 +479,18 @@ int kqueue_reactor::do_kqueue_create() return fd; } +kqueue_reactor::descriptor_state* kqueue_reactor::allocate_descriptor_state() +{ + mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_); + return registered_descriptors_.alloc(); +} + +void kqueue_reactor::free_descriptor_state(kqueue_reactor::descriptor_state* s) +{ + mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_); + registered_descriptors_.free(s); +} + void kqueue_reactor::do_add_timer_queue(timer_queue_base& queue) { mutex::scoped_lock lock(mutex_); diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/pipe_select_interrupter.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/pipe_select_interrupter.ipp index 9a0a872..75a8d16 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/pipe_select_interrupter.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/pipe_select_interrupter.ipp @@ -2,7 +2,7 @@ // detail/impl/pipe_select_interrupter.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -38,6 +38,11 @@ namespace detail { pipe_select_interrupter::pipe_select_interrupter() { + open_descriptors(); +} + +void pipe_select_interrupter::open_descriptors() +{ int pipe_fds[2]; if (pipe(pipe_fds) == 0) { @@ -45,6 +50,11 @@ pipe_select_interrupter::pipe_select_interrupter() ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK); write_descriptor_ = pipe_fds[1]; ::fcntl(write_descriptor_, F_SETFL, O_NONBLOCK); + +#if defined(FD_CLOEXEC) + ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC); + ::fcntl(write_descriptor_, F_SETFD, FD_CLOEXEC); +#endif // defined(FD_CLOEXEC) } else { @@ -56,12 +66,27 @@ pipe_select_interrupter::pipe_select_interrupter() pipe_select_interrupter::~pipe_select_interrupter() { + close_descriptors(); +} + +void pipe_select_interrupter::close_descriptors() +{ if (read_descriptor_ != -1) ::close(read_descriptor_); if (write_descriptor_ != -1) ::close(write_descriptor_); } +void pipe_select_interrupter::recreate() +{ + close_descriptors(); + + write_descriptor_ = -1; + read_descriptor_ = -1; + + open_descriptors(); +} + void pipe_select_interrupter::interrupt() { char byte = 0; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/posix_event.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/posix_event.ipp index 893e8cc..08eae05 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/posix_event.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/posix_event.ipp @@ -2,7 +2,7 @@ // detail/impl/posix_event.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/posix_mutex.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/posix_mutex.ipp index 908bfab..94b9bf4 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/posix_mutex.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/posix_mutex.ipp @@ -2,7 +2,7 @@ // detail/impl/posix_mutex.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/posix_thread.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/posix_thread.ipp index feb6dd1..0c52971 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/posix_thread.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/posix_thread.ipp @@ -2,7 +2,7 @@ // detail/impl/posix_thread.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/posix_tss_ptr.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/posix_tss_ptr.ipp index 89c1bf5..5124c5f 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/posix_tss_ptr.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/posix_tss_ptr.ipp @@ -2,7 +2,7 @@ // detail/impl/posix_tss_ptr.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/reactive_descriptor_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/reactive_descriptor_service.ipp index a1ee09a..dff0a82 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/reactive_descriptor_service.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/reactive_descriptor_service.ipp @@ -2,7 +2,7 @@ // detail/impl/reactive_descriptor_service.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -46,11 +46,47 @@ void reactive_descriptor_service::construct( impl.state_ = 0; } +void reactive_descriptor_service::move_construct( + reactive_descriptor_service::implementation_type& impl, + reactive_descriptor_service::implementation_type& other_impl) +{ + impl.descriptor_ = other_impl.descriptor_; + other_impl.descriptor_ = -1; + + impl.state_ = other_impl.state_; + other_impl.state_ = 0; + + reactor_.move_descriptor(impl.descriptor_, + impl.reactor_data_, other_impl.reactor_data_); +} + +void reactive_descriptor_service::move_assign( + reactive_descriptor_service::implementation_type& impl, + reactive_descriptor_service& other_service, + reactive_descriptor_service::implementation_type& other_impl) +{ + destroy(impl); + + impl.descriptor_ = other_impl.descriptor_; + other_impl.descriptor_ = -1; + + impl.state_ = other_impl.state_; + other_impl.state_ = 0; + + other_service.reactor_.move_descriptor(impl.descriptor_, + impl.reactor_data_, other_impl.reactor_data_); +} + void reactive_descriptor_service::destroy( reactive_descriptor_service::implementation_type& impl) { if (is_open(impl)) - reactor_.close_descriptor(impl.descriptor_, impl.reactor_data_); + { + BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "close")); + + reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, + (impl.state_ & descriptor_ops::possible_dup) == 0); + } boost::system::error_code ignored_ec; descriptor_ops::close(impl.descriptor_, impl.state_, ignored_ec); @@ -58,7 +94,7 @@ void reactive_descriptor_service::destroy( boost::system::error_code reactive_descriptor_service::assign( reactive_descriptor_service::implementation_type& impl, - const native_type& native_descriptor, boost::system::error_code& ec) + const native_handle_type& native_descriptor, boost::system::error_code& ec) { if (is_open(impl)) { @@ -75,7 +111,7 @@ boost::system::error_code reactive_descriptor_service::assign( } impl.descriptor_ = native_descriptor; - impl.state_ = 0; + impl.state_ = descriptor_ops::possible_dup; ec = boost::system::error_code(); return ec; } @@ -85,14 +121,43 @@ boost::system::error_code reactive_descriptor_service::close( boost::system::error_code& ec) { if (is_open(impl)) - reactor_.close_descriptor(impl.descriptor_, impl.reactor_data_); + { + BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "close")); - if (descriptor_ops::close(impl.descriptor_, impl.state_, ec) == 0) - construct(impl); + reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, + (impl.state_ & descriptor_ops::possible_dup) == 0); + } + + descriptor_ops::close(impl.descriptor_, impl.state_, ec); + + // The descriptor is closed by the OS even if close() returns an error. + // + // (Actually, POSIX says the state of the descriptor is unspecified. On + // Linux the descriptor is apparently closed anyway; e.g. see + // http://lkml.org/lkml/2005/9/10/129 + // We'll just have to assume that other OSes follow the same behaviour.) + construct(impl); return ec; } +reactive_descriptor_service::native_handle_type +reactive_descriptor_service::release( + reactive_descriptor_service::implementation_type& impl) +{ + native_handle_type descriptor = impl.descriptor_; + + if (is_open(impl)) + { + BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "release")); + + reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, false); + construct(impl); + } + + return descriptor; +} + boost::system::error_code reactive_descriptor_service::cancel( reactive_descriptor_service::implementation_type& impl, boost::system::error_code& ec) @@ -103,6 +168,8 @@ boost::system::error_code reactive_descriptor_service::cancel( return ec; } + BOOST_ASIO_HANDLER_OPERATION(("descriptor", &impl, "cancel")); + reactor_.cancel_ops(impl.descriptor_, impl.reactor_data_); ec = boost::system::error_code(); return ec; @@ -110,16 +177,16 @@ boost::system::error_code reactive_descriptor_service::cancel( void reactive_descriptor_service::start_op( reactive_descriptor_service::implementation_type& impl, - int op_type, reactor_op* op, bool non_blocking, bool noop) + int op_type, reactor_op* op, bool is_non_blocking, bool noop) { if (!noop) { if ((impl.state_ & descriptor_ops::non_blocking) || descriptor_ops::set_internal_non_blocking( - impl.descriptor_, impl.state_, op->ec_)) + impl.descriptor_, impl.state_, true, op->ec_)) { reactor_.start_op(op_type, impl.descriptor_, - impl.reactor_data_, op, non_blocking); + impl.reactor_data_, op, is_non_blocking); return; } } diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/reactive_serial_port_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/reactive_serial_port_service.ipp index ece61d3..0f530d7 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/reactive_serial_port_service.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/reactive_serial_port_service.ipp @@ -2,7 +2,7 @@ // detail/impl/reactive_serial_port_service.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying @@ -113,7 +113,7 @@ boost::system::error_code reactive_serial_port_service::do_set_option( termios ios; errno = 0; descriptor_ops::error_wrapper(::tcgetattr( - descriptor_service_.native(impl), &ios), ec); + descriptor_service_.native_handle(impl), &ios), ec); if (ec) return ec; @@ -122,7 +122,7 @@ boost::system::error_code reactive_serial_port_service::do_set_option( errno = 0; descriptor_ops::error_wrapper(::tcsetattr( - descriptor_service_.native(impl), TCSANOW, &ios), ec); + descriptor_service_.native_handle(impl), TCSANOW, &ios), ec); return ec; } @@ -134,7 +134,7 @@ boost::system::error_code reactive_serial_port_service::do_get_option( termios ios; errno = 0; descriptor_ops::error_wrapper(::tcgetattr( - descriptor_service_.native(impl), &ios), ec); + descriptor_service_.native_handle(impl), &ios), ec); if (ec) return ec; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/reactive_socket_service_base.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/reactive_socket_service_base.ipp index 31f5bc4..93277e0 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/reactive_socket_service_base.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/reactive_socket_service_base.ipp @@ -2,7 +2,7 @@ // detail/reactive_socket_service_base.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -45,12 +45,46 @@ void reactive_socket_service_base::construct( impl.state_ = 0; } +void reactive_socket_service_base::base_move_construct( + reactive_socket_service_base::base_implementation_type& impl, + reactive_socket_service_base::base_implementation_type& other_impl) +{ + impl.socket_ = other_impl.socket_; + other_impl.socket_ = invalid_socket; + + impl.state_ = other_impl.state_; + other_impl.state_ = 0; + + reactor_.move_descriptor(impl.socket_, + impl.reactor_data_, other_impl.reactor_data_); +} + +void reactive_socket_service_base::base_move_assign( + reactive_socket_service_base::base_implementation_type& impl, + reactive_socket_service_base& other_service, + reactive_socket_service_base::base_implementation_type& other_impl) +{ + destroy(impl); + + impl.socket_ = other_impl.socket_; + other_impl.socket_ = invalid_socket; + + impl.state_ = other_impl.state_; + other_impl.state_ = 0; + + other_service.reactor_.move_descriptor(impl.socket_, + impl.reactor_data_, other_impl.reactor_data_); +} + void reactive_socket_service_base::destroy( reactive_socket_service_base::base_implementation_type& impl) { if (impl.socket_ != invalid_socket) { - reactor_.close_descriptor(impl.socket_, impl.reactor_data_); + BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "close")); + + reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_, + (impl.state_ & socket_ops::possible_dup) == 0); boost::system::error_code ignored_ec; socket_ops::close(impl.socket_, impl.state_, true, ignored_ec); @@ -62,10 +96,24 @@ boost::system::error_code reactive_socket_service_base::close( boost::system::error_code& ec) { if (is_open(impl)) - reactor_.close_descriptor(impl.socket_, impl.reactor_data_); + { + BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "close")); - if (socket_ops::close(impl.socket_, impl.state_, false, ec) == 0) - construct(impl); + reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_, + (impl.state_ & socket_ops::possible_dup) == 0); + } + + socket_ops::close(impl.socket_, impl.state_, false, ec); + + // The descriptor is closed by the OS even if close() returns an error. + // + // (Actually, POSIX says the state of the descriptor is unspecified. On + // Linux the descriptor is apparently closed anyway; e.g. see + // http://lkml.org/lkml/2005/9/10/129 + // We'll just have to assume that other OSes follow the same behaviour. The + // known exception is when Windows's closesocket() function fails with + // WSAEWOULDBLOCK, but this case is handled inside socket_ops::close(). + construct(impl); return ec; } @@ -80,6 +128,8 @@ boost::system::error_code reactive_socket_service_base::cancel( return ec; } + BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "cancel")); + reactor_.cancel_ops(impl.socket_, impl.reactor_data_); ec = boost::system::error_code(); return ec; @@ -119,7 +169,7 @@ boost::system::error_code reactive_socket_service_base::do_open( boost::system::error_code reactive_socket_service_base::do_assign( reactive_socket_service_base::base_implementation_type& impl, int type, - const reactive_socket_service_base::native_type& native_socket, + const reactive_socket_service_base::native_handle_type& native_socket, boost::system::error_code& ec) { if (is_open(impl)) @@ -143,22 +193,23 @@ boost::system::error_code reactive_socket_service_base::do_assign( case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break; default: impl.state_ = 0; break; } + impl.state_ |= socket_ops::possible_dup; ec = boost::system::error_code(); return ec; } void reactive_socket_service_base::start_op( reactive_socket_service_base::base_implementation_type& impl, - int op_type, reactor_op* op, bool non_blocking, bool noop) + int op_type, reactor_op* op, bool is_non_blocking, bool noop) { if (!noop) { if ((impl.state_ & socket_ops::non_blocking) || socket_ops::set_internal_non_blocking( - impl.socket_, impl.state_, op->ec_)) + impl.socket_, impl.state_, true, op->ec_)) { reactor_.start_op(op_type, impl.socket_, - impl.reactor_data_, op, non_blocking); + impl.reactor_data_, op, is_non_blocking); return; } } @@ -185,7 +236,7 @@ void reactive_socket_service_base::start_connect_op( { if ((impl.state_ & socket_ops::non_blocking) || socket_ops::set_internal_non_blocking( - impl.socket_, impl.state_, op->ec_)) + impl.socket_, impl.state_, true, op->ec_)) { if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0) { diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/resolver_service_base.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/resolver_service_base.ipp index e456bb9..6a384e4 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/resolver_service_base.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/resolver_service_base.ipp @@ -2,7 +2,7 @@ // detail/impl/resolver_service_base.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -53,10 +53,10 @@ resolver_service_base::~resolver_service_base() void resolver_service_base::shutdown_service() { work_.reset(); - if (work_io_service_) + if (work_io_service_.get()) { work_io_service_->stop(); - if (work_thread_) + if (work_thread_.get()) { work_thread_->join(); work_thread_.reset(); @@ -65,6 +65,25 @@ void resolver_service_base::shutdown_service() } } +void resolver_service_base::fork_service( + boost::asio::io_service::fork_event fork_ev) +{ + if (work_thread_.get()) + { + if (fork_ev == boost::asio::io_service::fork_prepare) + { + work_io_service_->stop(); + work_thread_->join(); + } + else + { + work_io_service_->reset(); + work_thread_.reset(new boost::asio::detail::thread( + work_io_service_runner(*work_io_service_))); + } + } +} + void resolver_service_base::construct( resolver_service_base::implementation_type& impl) { @@ -72,13 +91,18 @@ void resolver_service_base::construct( } void resolver_service_base::destroy( - resolver_service_base::implementation_type&) + resolver_service_base::implementation_type& impl) { + BOOST_ASIO_HANDLER_OPERATION(("resolver", &impl, "cancel")); + + impl.reset(); } void resolver_service_base::cancel( resolver_service_base::implementation_type& impl) { + BOOST_ASIO_HANDLER_OPERATION(("resolver", &impl, "cancel")); + impl.reset(static_cast<void*>(0), socket_ops::noop_deleter()); } @@ -92,7 +116,7 @@ void resolver_service_base::start_resolve_op(operation* op) void resolver_service_base::start_work_thread() { boost::asio::detail::mutex::scoped_lock lock(mutex_); - if (!work_thread_) + if (!work_thread_.get()) { work_thread_.reset(new boost::asio::detail::thread( work_io_service_runner(*work_io_service_))); diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/select_reactor.hpp b/3rdParty/Boost/src/boost/asio/detail/impl/select_reactor.hpp index 3773bfb..0d4097e 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/select_reactor.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/select_reactor.hpp @@ -2,7 +2,7 @@ // detail/impl/select_reactor.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -44,7 +44,7 @@ void select_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue) template <typename Time_Traits> void select_reactor::schedule_timer(timer_queue<Time_Traits>& queue, const typename Time_Traits::time_type& time, - typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op) + typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op) { boost::asio::detail::mutex::scoped_lock lock(mutex_); @@ -62,11 +62,12 @@ void select_reactor::schedule_timer(timer_queue<Time_Traits>& queue, template <typename Time_Traits> std::size_t select_reactor::cancel_timer(timer_queue<Time_Traits>& queue, - typename timer_queue<Time_Traits>::per_timer_data& timer) + typename timer_queue<Time_Traits>::per_timer_data& timer, + std::size_t max_cancelled) { boost::asio::detail::mutex::scoped_lock lock(mutex_); op_queue<operation> ops; - std::size_t n = queue.cancel_timer(timer, ops); + std::size_t n = queue.cancel_timer(timer, ops, max_cancelled); lock.unlock(); io_service_.post_deferred_completions(ops); return n; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/select_reactor.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/select_reactor.ipp index 8fcf68e..d11904e 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/select_reactor.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/select_reactor.ipp @@ -2,7 +2,7 @@ // detail/impl/select_reactor.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -82,6 +82,14 @@ void select_reactor::shutdown_service() op_queue_[i].get_all_operations(ops); timer_queues_.get_all_timers(ops); + + io_service_.abandon_operations(ops); +} + +void select_reactor::fork_service(boost::asio::io_service::fork_event fork_ev) +{ + if (fork_ev == boost::asio::io_service::fork_child) + interrupter_.recreate(); } void select_reactor::init_task() @@ -95,6 +103,24 @@ int select_reactor::register_descriptor(socket_type, return 0; } +int select_reactor::register_internal_descriptor( + int op_type, socket_type descriptor, + select_reactor::per_descriptor_data&, reactor_op* op) +{ + boost::asio::detail::mutex::scoped_lock lock(mutex_); + + op_queue_[op_type].enqueue_operation(descriptor, op); + interrupter_.interrupt(); + + return 0; +} + +void select_reactor::move_descriptor(socket_type, + select_reactor::per_descriptor_data&, + select_reactor::per_descriptor_data&) +{ +} + void select_reactor::start_op(int op_type, socket_type descriptor, select_reactor::per_descriptor_data&, reactor_op* op, bool) { @@ -119,13 +145,22 @@ void select_reactor::cancel_ops(socket_type descriptor, cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted); } -void select_reactor::close_descriptor(socket_type descriptor, - select_reactor::per_descriptor_data&) +void select_reactor::deregister_descriptor(socket_type descriptor, + select_reactor::per_descriptor_data&, bool) { boost::asio::detail::mutex::scoped_lock lock(mutex_); cancel_ops_unlocked(descriptor, boost::asio::error::operation_aborted); } +void select_reactor::deregister_internal_descriptor( + socket_type descriptor, select_reactor::per_descriptor_data&) +{ + boost::asio::detail::mutex::scoped_lock lock(mutex_); + op_queue<operation> ops; + for (int i = 0; i < max_ops; ++i) + op_queue_[i].cancel_operations(descriptor, ops); +} + void select_reactor::run(bool block, op_queue<operation>& ops) { boost::asio::detail::mutex::scoped_lock lock(mutex_); @@ -137,27 +172,28 @@ void select_reactor::run(bool block, op_queue<operation>& ops) #endif // defined(BOOST_ASIO_HAS_IOCP) // Set up the descriptor sets. - fd_set_adapter fds[max_select_ops]; - fds[read_op].set(interrupter_.read_descriptor()); + for (int i = 0; i < max_select_ops; ++i) + fd_sets_[i].reset(); + fd_sets_[read_op].set(interrupter_.read_descriptor()); socket_type max_fd = 0; bool have_work_to_do = !timer_queues_.all_empty(); for (int i = 0; i < max_select_ops; ++i) { have_work_to_do = have_work_to_do || !op_queue_[i].empty(); - op_queue_[i].get_descriptors(fds[i], ops); - if (fds[i].max_descriptor() > max_fd) - max_fd = fds[i].max_descriptor(); + op_queue_[i].get_descriptors(fd_sets_[i], ops); + if (fd_sets_[i].max_descriptor() > max_fd) + max_fd = fd_sets_[i].max_descriptor(); } #if defined(BOOST_WINDOWS) || defined(__CYGWIN__) // Connection operations on Windows use both except and write fd_sets. have_work_to_do = have_work_to_do || !op_queue_[connect_op].empty(); - op_queue_[connect_op].get_descriptors(fds[write_op], ops); - if (fds[write_op].max_descriptor() > max_fd) - max_fd = fds[write_op].max_descriptor(); - op_queue_[connect_op].get_descriptors(fds[except_op], ops); - if (fds[except_op].max_descriptor() > max_fd) - max_fd = fds[except_op].max_descriptor(); + op_queue_[connect_op].get_descriptors(fd_sets_[write_op], ops); + if (fd_sets_[write_op].max_descriptor() > max_fd) + max_fd = fd_sets_[write_op].max_descriptor(); + op_queue_[connect_op].get_descriptors(fd_sets_[except_op], ops); + if (fd_sets_[except_op].max_descriptor() > max_fd) + max_fd = fd_sets_[except_op].max_descriptor(); #endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) // We can return immediately if there's no work to do and the reactor is @@ -174,11 +210,14 @@ void select_reactor::run(bool block, op_queue<operation>& ops) // Block on the select call until descriptors become ready. boost::system::error_code ec; int retval = socket_ops::select(static_cast<int>(max_fd + 1), - fds[read_op], fds[write_op], fds[except_op], tv, ec); + fd_sets_[read_op], fd_sets_[write_op], fd_sets_[except_op], tv, ec); // Reset the interrupter. - if (retval > 0 && fds[read_op].is_set(interrupter_.read_descriptor())) + if (retval > 0 && fd_sets_[read_op].is_set(interrupter_.read_descriptor())) + { interrupter_.reset(); + --retval; + } lock.lock(); @@ -188,15 +227,15 @@ void select_reactor::run(bool block, op_queue<operation>& ops) #if defined(BOOST_WINDOWS) || defined(__CYGWIN__) // Connection operations on Windows use both except and write fd_sets. op_queue_[connect_op].perform_operations_for_descriptors( - fds[except_op], ops); + fd_sets_[except_op], ops); op_queue_[connect_op].perform_operations_for_descriptors( - fds[write_op], ops); + fd_sets_[write_op], ops); #endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) // Exception operations must be processed first to ensure that any // out-of-band data is read before normal data. for (int i = max_select_ops - 1; i >= 0; --i) - op_queue_[i].perform_operations_for_descriptors(fds[i], ops); + op_queue_[i].perform_operations_for_descriptors(fd_sets_[i], ops); } timer_queues_.get_ready_timers(ops); } diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/service_registry.hpp b/3rdParty/Boost/src/boost/asio/detail/impl/service_registry.hpp index 97f5771..eef25ac 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/service_registry.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/service_registry.hpp @@ -2,7 +2,7 @@ // detail/impl/service_registry.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -21,6 +21,24 @@ namespace boost { namespace asio { namespace detail { +template <typename Service, typename Arg> +service_registry::service_registry( + boost::asio::io_service& o, Service*, Arg arg) + : owner_(o), + first_service_(new Service(o, arg)) +{ + boost::asio::io_service::service::key key; + init_key(key, Service::id); + first_service_->key_ = key; + first_service_->next_ = 0; +} + +template <typename Service> +Service& service_registry::first_service() +{ + return *static_cast<Service*>(first_service_); +} + template <typename Service> Service& service_registry::use_service() { diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/service_registry.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/service_registry.ipp index c2f07ec..6715010 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/service_registry.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/service_registry.ipp @@ -2,7 +2,7 @@ // detail/impl/service_registry.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -17,6 +17,7 @@ #include <boost/asio/detail/config.hpp> #include <boost/throw_exception.hpp> +#include <vector> #include <boost/asio/detail/service_registry.hpp> #include <boost/asio/detail/push_options.hpp> @@ -25,12 +26,6 @@ namespace boost { namespace asio { namespace detail { -service_registry::service_registry(boost::asio::io_service& o) - : owner_(o), - first_service_(0) -{ -} - service_registry::~service_registry() { // Shutdown all services. This must be done in a separate loop before the @@ -52,6 +47,35 @@ service_registry::~service_registry() } } +void service_registry::notify_fork(boost::asio::io_service::fork_event fork_ev) +{ + // Make a copy of all of the services while holding the lock. We don't want + // to hold the lock while calling into each service, as it may try to call + // back into this class. + std::vector<boost::asio::io_service::service*> services; + { + boost::asio::detail::mutex::scoped_lock lock(mutex_); + boost::asio::io_service::service* service = first_service_; + while (service) + { + services.push_back(service); + service = service->next_; + } + } + + // If processing the fork_prepare event, we want to go in reverse order of + // service registration, which happens to be the existing order of the + // services in the vector. For the other events we want to go in the other + // direction. + std::size_t num_services = services.size(); + if (fork_ev == boost::asio::io_service::fork_prepare) + for (std::size_t i = 0; i < num_services; ++i) + services[i]->fork_service(fork_ev); + else + for (std::size_t i = num_services; i > 0; --i) + services[i - 1]->fork_service(fork_ev); +} + void service_registry::init_key(boost::asio::io_service::service::key& key, const boost::asio::io_service::id& id) { @@ -121,7 +145,7 @@ void service_registry::do_add_service( const boost::asio::io_service::service::key& key, boost::asio::io_service::service* new_service) { - if (&owner_ != &new_service->io_service()) + if (&owner_ != &new_service->get_io_service()) boost::throw_exception(invalid_service_owner()); boost::asio::detail::mutex::scoped_lock lock(mutex_); diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/signal_set_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/signal_set_service.ipp new file mode 100644 index 0000000..0b57007 --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/detail/impl/signal_set_service.ipp @@ -0,0 +1,593 @@ +// +// detail/impl/signal_set_service.ipp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +#ifndef BOOST_ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP +#define BOOST_ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <boost/asio/detail/config.hpp> + +#include <cstring> +#include <boost/asio/detail/reactor.hpp> +#include <boost/asio/detail/signal_blocker.hpp> +#include <boost/asio/detail/signal_set_service.hpp> +#include <boost/asio/detail/static_mutex.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +struct signal_state +{ + // Mutex used for protecting global state. + static_mutex mutex_; + + // The read end of the pipe used for signal notifications. + int read_descriptor_; + + // The write end of the pipe used for signal notifications. + int write_descriptor_; + + // Whether the signal state has been prepared for a fork. + bool fork_prepared_; + + // The head of a linked list of all signal_set_service instances. + class signal_set_service* service_list_; + + // A count of the number of objects that are registered for each signal. + std::size_t registration_count_[max_signal_number]; +}; + +signal_state* get_signal_state() +{ + static signal_state state = { + BOOST_ASIO_STATIC_MUTEX_INIT, -1, -1, false, 0, { 0 } }; + return &state; +} + +void asio_signal_handler(int signal_number) +{ +#if defined(BOOST_WINDOWS) || defined(__CYGWIN__) + signal_set_service::deliver_signal(signal_number); +#else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + int saved_errno = errno; + signal_state* state = get_signal_state(); + int result = ::write(state->write_descriptor_, + &signal_number, sizeof(signal_number)); + (void)result; + errno = saved_errno; +#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + +#if defined(BOOST_ASIO_HAS_SIGNAL) && !defined(BOOST_ASIO_HAS_SIGACTION) + ::signal(signal_number, asio_signal_handler); +#endif // defined(BOOST_ASIO_HAS_SIGNAL) && !defined(BOOST_ASIO_HAS_SIGACTION) +} + +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) +class signal_set_service::pipe_read_op : public reactor_op +{ +public: + pipe_read_op() + : reactor_op(&pipe_read_op::do_perform, pipe_read_op::do_complete) + { + } + + static bool do_perform(reactor_op*) + { + signal_state* state = get_signal_state(); + + int fd = state->read_descriptor_; + int signal_number = 0; + while (::read(fd, &signal_number, sizeof(int)) == sizeof(int)) + if (signal_number >= 0 && signal_number < max_signal_number) + signal_set_service::deliver_signal(signal_number); + + return false; + } + + static void do_complete(io_service_impl* /*owner*/, operation* base, + const boost::system::error_code& /*ec*/, + std::size_t /*bytes_transferred*/) + { + pipe_read_op* o(static_cast<pipe_read_op*>(base)); + delete o; + } +}; +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + +signal_set_service::signal_set_service( + boost::asio::io_service& io_service) + : io_service_(boost::asio::use_service<io_service_impl>(io_service)), +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + reactor_(boost::asio::use_service<reactor>(io_service)), +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + next_(0), + prev_(0) +{ + get_signal_state()->mutex_.init(); + +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + reactor_.init_task(); +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + + for (int i = 0; i < max_signal_number; ++i) + registrations_[i] = 0; + + add_service(this); +} + +signal_set_service::~signal_set_service() +{ + remove_service(this); +} + +void signal_set_service::shutdown_service() +{ + remove_service(this); + + op_queue<operation> ops; + + for (int i = 0; i < max_signal_number; ++i) + { + registration* reg = registrations_[i]; + while (reg) + { + ops.push(*reg->queue_); + reg = reg->next_in_table_; + } + } + + io_service_.abandon_operations(ops); +} + +void signal_set_service::fork_service( + boost::asio::io_service::fork_event fork_ev) +{ +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + + switch (fork_ev) + { + case boost::asio::io_service::fork_prepare: + reactor_.deregister_internal_descriptor( + state->read_descriptor_, reactor_data_); + state->fork_prepared_ = true; + break; + case boost::asio::io_service::fork_parent: + state->fork_prepared_ = false; + reactor_.register_internal_descriptor(reactor::read_op, + state->read_descriptor_, reactor_data_, new pipe_read_op); + break; + case boost::asio::io_service::fork_child: + if (state->fork_prepared_) + { + boost::asio::detail::signal_blocker blocker; + close_descriptors(); + open_descriptors(); + state->fork_prepared_ = false; + } + reactor_.register_internal_descriptor(reactor::read_op, + state->read_descriptor_, reactor_data_, new pipe_read_op); + break; + default: + break; + } +#else // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + (void)fork_ev; +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) +} + +void signal_set_service::construct( + signal_set_service::implementation_type& impl) +{ + impl.signals_ = 0; +} + +void signal_set_service::destroy( + signal_set_service::implementation_type& impl) +{ + boost::system::error_code ignored_ec; + clear(impl, ignored_ec); + cancel(impl, ignored_ec); +} + +boost::system::error_code signal_set_service::add( + signal_set_service::implementation_type& impl, + int signal_number, boost::system::error_code& ec) +{ + // Check that the signal number is valid. + if (signal_number < 0 || signal_number > max_signal_number) + { + ec = boost::asio::error::invalid_argument; + return ec; + } + + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + + // Find the appropriate place to insert the registration. + registration** insertion_point = &impl.signals_; + registration* next = impl.signals_; + while (next && next->signal_number_ < signal_number) + { + insertion_point = &next->next_in_set_; + next = next->next_in_set_; + } + + // Only do something if the signal is not already registered. + if (next == 0 || next->signal_number_ != signal_number) + { + registration* new_registration = new registration; + +#if defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION) + // Register for the signal if we're the first. + if (state->registration_count_[signal_number] == 0) + { +# if defined(BOOST_ASIO_HAS_SIGACTION) + using namespace std; // For memset. + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = asio_signal_handler; + sigfillset(&sa.sa_mask); + if (::sigaction(signal_number, &sa, 0) == -1) +# else // defined(BOOST_ASIO_HAS_SIGACTION) + if (::signal(signal_number, asio_signal_handler) == SIG_ERR) +# endif // defined(BOOST_ASIO_HAS_SIGACTION) + { +# if defined(BOOST_WINDOWS) || defined(__CYGWIN__) + ec = boost::asio::error::invalid_argument; +# else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + ec = boost::system::error_code(errno, + boost::asio::error::get_system_category()); +# endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + delete new_registration; + return ec; + } + } +#endif // defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION) + + // Record the new registration in the set. + new_registration->signal_number_ = signal_number; + new_registration->queue_ = &impl.queue_; + new_registration->next_in_set_ = next; + *insertion_point = new_registration; + + // Insert registration into the registration table. + new_registration->next_in_table_ = registrations_[signal_number]; + if (registrations_[signal_number]) + registrations_[signal_number]->prev_in_table_ = new_registration; + registrations_[signal_number] = new_registration; + + ++state->registration_count_[signal_number]; + } + + ec = boost::system::error_code(); + return ec; +} + +boost::system::error_code signal_set_service::remove( + signal_set_service::implementation_type& impl, + int signal_number, boost::system::error_code& ec) +{ + // Check that the signal number is valid. + if (signal_number < 0 || signal_number > max_signal_number) + { + ec = boost::asio::error::invalid_argument; + return ec; + } + + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + + // Find the signal number in the list of registrations. + registration** deletion_point = &impl.signals_; + registration* reg = impl.signals_; + while (reg && reg->signal_number_ < signal_number) + { + deletion_point = ®->next_in_set_; + reg = reg->next_in_set_; + } + + if (reg != 0 && reg->signal_number_ == signal_number) + { +#if defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION) + // Set signal handler back to the default if we're the last. + if (state->registration_count_[signal_number] == 1) + { +# if defined(BOOST_ASIO_HAS_SIGACTION) + using namespace std; // For memset. + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = SIG_DFL; + if (::sigaction(signal_number, &sa, 0) == -1) +# else // defined(BOOST_ASIO_HAS_SIGACTION) + if (::signal(signal_number, SIG_DFL) == SIG_ERR) +# endif // defined(BOOST_ASIO_HAS_SIGACTION) + { +# if defined(BOOST_WINDOWS) || defined(__CYGWIN__) + ec = boost::asio::error::invalid_argument; +# else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + ec = boost::system::error_code(errno, + boost::asio::error::get_system_category()); +# endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + return ec; + } + } +#endif // defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION) + + // Remove the registration from the set. + *deletion_point = reg->next_in_set_; + + // Remove the registration from the registration table. + if (registrations_[signal_number] == reg) + registrations_[signal_number] = reg->next_in_table_; + if (reg->prev_in_table_) + reg->prev_in_table_->next_in_table_ = reg->next_in_table_; + if (reg->next_in_table_) + reg->next_in_table_->prev_in_table_ = reg->prev_in_table_; + + --state->registration_count_[signal_number]; + + delete reg; + } + + ec = boost::system::error_code(); + return ec; +} + +boost::system::error_code signal_set_service::clear( + signal_set_service::implementation_type& impl, + boost::system::error_code& ec) +{ + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + + while (registration* reg = impl.signals_) + { +#if defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION) + // Set signal handler back to the default if we're the last. + if (state->registration_count_[reg->signal_number_] == 1) + { +# if defined(BOOST_ASIO_HAS_SIGACTION) + using namespace std; // For memset. + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = SIG_DFL; + if (::sigaction(reg->signal_number_, &sa, 0) == -1) +# else // defined(BOOST_ASIO_HAS_SIGACTION) + if (::signal(reg->signal_number_, SIG_DFL) == SIG_ERR) +# endif // defined(BOOST_ASIO_HAS_SIGACTION) + { +# if defined(BOOST_WINDOWS) || defined(__CYGWIN__) + ec = boost::asio::error::invalid_argument; +# else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + ec = boost::system::error_code(errno, + boost::asio::error::get_system_category()); +# endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + return ec; + } + } +#endif // defined(BOOST_ASIO_HAS_SIGNAL) || defined(BOOST_ASIO_HAS_SIGACTION) + + // Remove the registration from the registration table. + if (registrations_[reg->signal_number_] == reg) + registrations_[reg->signal_number_] = reg->next_in_table_; + if (reg->prev_in_table_) + reg->prev_in_table_->next_in_table_ = reg->next_in_table_; + if (reg->next_in_table_) + reg->next_in_table_->prev_in_table_ = reg->prev_in_table_; + + --state->registration_count_[reg->signal_number_]; + + impl.signals_ = reg->next_in_set_; + delete reg; + } + + ec = boost::system::error_code(); + return ec; +} + +boost::system::error_code signal_set_service::cancel( + signal_set_service::implementation_type& impl, + boost::system::error_code& ec) +{ + BOOST_ASIO_HANDLER_OPERATION(("signal_set", &impl, "cancel")); + + op_queue<operation> ops; + { + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + + while (signal_op* op = impl.queue_.front()) + { + op->ec_ = boost::asio::error::operation_aborted; + impl.queue_.pop(); + ops.push(op); + } + } + + io_service_.post_deferred_completions(ops); + + ec = boost::system::error_code(); + return ec; +} + +void signal_set_service::deliver_signal(int signal_number) +{ + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + + signal_set_service* service = state->service_list_; + while (service) + { + op_queue<operation> ops; + + registration* reg = service->registrations_[signal_number]; + while (reg) + { + if (reg->queue_->empty()) + { + ++reg->undelivered_; + } + else + { + while (signal_op* op = reg->queue_->front()) + { + op->signal_number_ = signal_number; + reg->queue_->pop(); + ops.push(op); + } + } + + reg = reg->next_in_table_; + } + + service->io_service_.post_deferred_completions(ops); + + service = service->next_; + } +} + +void signal_set_service::add_service(signal_set_service* service) +{ + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + // If this is the first service to be created, open a new pipe. + if (state->service_list_ == 0) + open_descriptors(); +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + + // Insert service into linked list of all services. + service->next_ = state->service_list_; + service->prev_ = 0; + if (state->service_list_) + state->service_list_->prev_ = service; + state->service_list_ = service; + +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + // Register for pipe readiness notifications. + service->reactor_.register_internal_descriptor(reactor::read_op, + state->read_descriptor_, service->reactor_data_, new pipe_read_op); +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) +} + +void signal_set_service::remove_service(signal_set_service* service) +{ + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + + if (service->next_ || service->prev_ || state->service_list_ == service) + { +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + // Disable the pipe readiness notifications. + service->reactor_.deregister_descriptor( + state->read_descriptor_, service->reactor_data_, false); +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + + // Remove service from linked list of all services. + if (state->service_list_ == service) + state->service_list_ = service->next_; + if (service->prev_) + service->prev_->next_ = service->next_; + if (service->next_) + service->next_->prev_= service->prev_; + service->next_ = 0; + service->prev_ = 0; + +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + // If this is the last service to be removed, close the pipe. + if (state->service_list_ == 0) + close_descriptors(); +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + } +} + +void signal_set_service::open_descriptors() +{ +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + signal_state* state = get_signal_state(); + + int pipe_fds[2]; + if (::pipe(pipe_fds) == 0) + { + state->read_descriptor_ = pipe_fds[0]; + ::fcntl(state->read_descriptor_, F_SETFL, O_NONBLOCK); + + state->write_descriptor_ = pipe_fds[1]; + ::fcntl(state->write_descriptor_, F_SETFL, O_NONBLOCK); + +#if defined(FD_CLOEXEC) + ::fcntl(state->read_descriptor_, F_SETFD, FD_CLOEXEC); + ::fcntl(state->write_descriptor_, F_SETFD, FD_CLOEXEC); +#endif // defined(FD_CLOEXEC) + } + else + { + boost::system::error_code ec(errno, + boost::asio::error::get_system_category()); + boost::asio::detail::throw_error(ec, "signal_set_service pipe"); + } +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) +} + +void signal_set_service::close_descriptors() +{ +#if !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) + signal_state* state = get_signal_state(); + + if (state->read_descriptor_ != -1) + ::close(state->read_descriptor_); + state->read_descriptor_ = -1; + + if (state->write_descriptor_ != -1) + ::close(state->write_descriptor_); + state->write_descriptor_ = -1; +#endif // !defined(BOOST_WINDOWS) && !defined(__CYGWIN__) +} + +void signal_set_service::start_wait_op( + signal_set_service::implementation_type& impl, signal_op* op) +{ + io_service_.work_started(); + + signal_state* state = get_signal_state(); + static_mutex::scoped_lock lock(state->mutex_); + + registration* reg = impl.signals_; + while (reg) + { + if (reg->undelivered_ > 0) + { + --reg->undelivered_; + io_service_.post_deferred_completion(op); + return; + } + + reg = reg->next_in_set_; + } + + impl.queue_.push(op); +} + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // BOOST_ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/socket_ops.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/socket_ops.ipp index e240acd..16e9536 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/socket_ops.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/socket_ops.ipp @@ -2,7 +2,7 @@ // detail/impl/socket_ops.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -18,6 +18,7 @@ #include <boost/asio/detail/config.hpp> #include <boost/assert.hpp> #include <boost/detail/workaround.hpp> +#include <cctype> #include <cstdio> #include <cstdlib> #include <cstring> @@ -148,7 +149,7 @@ socket_type sync_accept(socket_type s, state_type state, return invalid_socket; // Wait for socket to become ready. - if (socket_ops::poll_read(s, ec) < 0) + if (socket_ops::poll_read(s, 0, ec) < 0) return invalid_socket; } } @@ -278,28 +279,9 @@ int close(socket_type s, state_type& state, int result = 0; if (s != invalid_socket) { -#if defined(BOOST_WINDOWS) || defined(__CYGWIN__) - if ((state & non_blocking) && (state & user_set_linger)) - { - ioctl_arg_type arg = 0; - ::ioctlsocket(s, FIONBIO, &arg); - state &= ~non_blocking; - } -#else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) - if (state & non_blocking) - { -#if defined(__SYMBIAN32__) - int flags = ::fcntl(s, F_GETFL, 0); - if (flags >= 0) - ::fcntl(s, F_SETFL, flags & ~O_NONBLOCK); -#else // defined(__SYMBIAN32__) - ioctl_arg_type arg = 0; - ::ioctl(s, FIONBIO, &arg); -#endif // defined(__SYMBIAN32__) - state &= ~non_blocking; - } -#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) - + // We don't want the destructor to block, so set the socket to linger in + // the background. If the user doesn't like this behaviour then they need + // to explicitly close the socket. if (destruction && (state & user_set_linger)) { ::linger opt; @@ -316,6 +298,39 @@ int close(socket_type s, state_type& state, #else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) result = error_wrapper(::close(s), ec); #endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + + if (result != 0 + && (ec == boost::asio::error::would_block + || ec == boost::asio::error::try_again)) + { + // According to UNIX Network Programming Vol. 1, it is possible for + // close() to fail with EWOULDBLOCK under certain circumstances. What + // isn't clear is the state of the descriptor after this error. The one + // current OS where this behaviour is seen, Windows, says that the socket + // remains open. Therefore we'll put the descriptor back into blocking + // mode and have another attempt at closing it. +#if defined(BOOST_WINDOWS) || defined(__CYGWIN__) + ioctl_arg_type arg = 0; + ::ioctlsocket(s, FIONBIO, &arg); +#else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) +# if defined(__SYMBIAN32__) + int flags = ::fcntl(s, F_GETFL, 0); + if (flags >= 0) + ::fcntl(s, F_SETFL, flags & ~O_NONBLOCK); +# else // defined(__SYMBIAN32__) + ioctl_arg_type arg = 0; + ::ioctl(s, FIONBIO, &arg); +# endif // defined(__SYMBIAN32__) +#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + state &= ~non_blocking; + + clear_last_error(); +#if defined(BOOST_WINDOWS) || defined(__CYGWIN__) + result = error_wrapper(::closesocket(s), ec); +#else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + result = error_wrapper(::close(s), ec); +#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + } } if (result == 0) @@ -323,8 +338,52 @@ int close(socket_type s, state_type& state, return result; } +bool set_user_non_blocking(socket_type s, + state_type& state, bool value, boost::system::error_code& ec) +{ + if (s == invalid_socket) + { + ec = boost::asio::error::bad_descriptor; + return false; + } + + clear_last_error(); +#if defined(BOOST_WINDOWS) || defined(__CYGWIN__) + ioctl_arg_type arg = (value ? 1 : 0); + int result = error_wrapper(::ioctlsocket(s, FIONBIO, &arg), ec); +#elif defined(__SYMBIAN32__) + int result = error_wrapper(::fcntl(s, F_GETFL, 0), ec); + if (result >= 0) + { + clear_last_error(); + int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK)); + result = error_wrapper(::fcntl(s, F_SETFL, flag), ec); + } +#else + ioctl_arg_type arg = (value ? 1 : 0); + int result = error_wrapper(::ioctl(s, FIONBIO, &arg), ec); +#endif + + if (result >= 0) + { + ec = boost::system::error_code(); + if (value) + state |= user_set_non_blocking; + else + { + // Clearing the user-set non-blocking mode always overrides any + // internally-set non-blocking flag. Any subsequent asynchronous + // operations will need to re-enable non-blocking I/O. + state &= ~(user_set_non_blocking | internal_non_blocking); + } + return true; + } + + return false; +} + bool set_internal_non_blocking(socket_type s, - state_type& state, boost::system::error_code& ec) + state_type& state, bool value, boost::system::error_code& ec) { if (s == invalid_socket) { @@ -332,26 +391,39 @@ bool set_internal_non_blocking(socket_type s, return false; } + if (!value && (state & user_set_non_blocking)) + { + // It does not make sense to clear the internal non-blocking flag if the + // user still wants non-blocking behaviour. Return an error and let the + // caller figure out whether to update the user-set non-blocking flag. + ec = boost::asio::error::invalid_argument; + return false; + } + clear_last_error(); #if defined(BOOST_WINDOWS) || defined(__CYGWIN__) - ioctl_arg_type arg = 1; + ioctl_arg_type arg = (value ? 1 : 0); int result = error_wrapper(::ioctlsocket(s, FIONBIO, &arg), ec); #elif defined(__SYMBIAN32__) int result = error_wrapper(::fcntl(s, F_GETFL, 0), ec); if (result >= 0) { clear_last_error(); - result = error_wrapper(::fcntl(s, F_SETFL, result | O_NONBLOCK), ec); + int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK)); + result = error_wrapper(::fcntl(s, F_SETFL, flag), ec); } #else - ioctl_arg_type arg = 1; + ioctl_arg_type arg = (value ? 1 : 0); int result = error_wrapper(::ioctl(s, FIONBIO, &arg), ec); #endif if (result >= 0) { ec = boost::system::error_code(); - state |= internal_non_blocking; + if (value) + state |= internal_non_blocking; + else + state &= ~internal_non_blocking; return true; } @@ -394,6 +466,10 @@ int connect(socket_type s, const socket_addr_type* addr, &msghdr::msg_namelen, s, addr, addrlen), ec); if (result == 0) ec = boost::system::error_code(); +#if defined(__linux__) + else if (ec == boost::asio::error::try_again) + ec = boost::asio::error::no_buffer_space; +#endif // defined(__linux__) return result; } @@ -664,7 +740,7 @@ size_t sync_recv(socket_type s, state_type state, buf* bufs, return 0; // Wait for socket to become ready. - if (socket_ops::poll_read(s, ec) < 0) + if (socket_ops::poll_read(s, 0, ec) < 0) return 0; } } @@ -802,7 +878,7 @@ size_t sync_recvfrom(socket_type s, state_type state, buf* bufs, return 0; // Wait for socket to become ready. - if (socket_ops::poll_read(s, ec) < 0) + if (socket_ops::poll_read(s, 0, ec) < 0) return 0; } } @@ -863,6 +939,116 @@ bool non_blocking_recvfrom(socket_type s, #endif // defined(BOOST_ASIO_HAS_IOCP) +int recvmsg(socket_type s, buf* bufs, size_t count, + int in_flags, int& out_flags, boost::system::error_code& ec) +{ + clear_last_error(); +#if defined(BOOST_WINDOWS) || defined(__CYGWIN__) + out_flags = 0; + return socket_ops::recv(s, bufs, count, in_flags, ec); +#else // defined(BOOST_WINDOWS) || defined(__CYGWIN__) + msghdr msg = msghdr(); + msg.msg_iov = bufs; + msg.msg_iovlen = count; + int result = error_wrapper(::recvmsg(s, &msg, in_flags), ec); + if (result >= 0) + { + ec = boost::system::error_code(); + out_flags = msg.msg_flags; + } + else + out_flags = 0; + return result; +#endif // defined(BOOST_WINDOWS) || defined(__CYGWIN__) +} + +size_t sync_recvmsg(socket_type s, state_type state, + buf* bufs, size_t count, int in_flags, int& out_flags, + boost::system::error_code& ec) +{ + if (s == invalid_socket) + { + ec = boost::asio::error::bad_descriptor; + return 0; + } + + // Read some data. + for (;;) + { + // Try to complete the operation without blocking. + int bytes = socket_ops::recvmsg(s, bufs, count, in_flags, out_flags, ec); + + // Check if operation succeeded. + if (bytes >= 0) + return bytes; + + // Operation failed. + if ((state & user_set_non_blocking) + || (ec != boost::asio::error::would_block + && ec != boost::asio::error::try_again)) + return 0; + + // Wait for socket to become ready. + if (socket_ops::poll_read(s, 0, ec) < 0) + return 0; + } +} + +#if defined(BOOST_ASIO_HAS_IOCP) + +void complete_iocp_recvmsg( + const weak_cancel_token_type& cancel_token, + boost::system::error_code& ec) +{ + // Map non-portable errors to their portable counterparts. + if (ec.value() == ERROR_NETNAME_DELETED) + { + if (cancel_token.expired()) + ec = boost::asio::error::operation_aborted; + else + ec = boost::asio::error::connection_reset; + } + else if (ec.value() == ERROR_PORT_UNREACHABLE) + { + ec = boost::asio::error::connection_refused; + } +} + +#else // defined(BOOST_ASIO_HAS_IOCP) + +bool non_blocking_recvmsg(socket_type s, + buf* bufs, size_t count, int in_flags, int& out_flags, + boost::system::error_code& ec, size_t& bytes_transferred) +{ + for (;;) + { + // Read some data. + int bytes = socket_ops::recvmsg(s, bufs, count, in_flags, out_flags, ec); + + // Retry operation if interrupted by signal. + if (ec == boost::asio::error::interrupted) + continue; + + // Check if we need to run the operation again. + if (ec == boost::asio::error::would_block + || ec == boost::asio::error::try_again) + return false; + + // Operation is complete. + if (bytes >= 0) + { + ec = boost::system::error_code(); + bytes_transferred = bytes; + } + else + bytes_transferred = 0; + + return true; + } +} + +#endif // defined(BOOST_ASIO_HAS_IOCP) + int send(socket_type s, const buf* bufs, size_t count, int flags, boost::system::error_code& ec) { @@ -929,7 +1115,7 @@ size_t sync_send(socket_type s, state_type state, const buf* bufs, return 0; // Wait for socket to become ready. - if (socket_ops::poll_write(s, ec) < 0) + if (socket_ops::poll_write(s, 0, ec) < 0) return 0; } } @@ -1052,7 +1238,7 @@ size_t sync_sendto(socket_type s, state_type state, const buf* bufs, return 0; // Wait for socket to become ready. - if (socket_ops::poll_write(s, ec) < 0) + if (socket_ops::poll_write(s, 0, ec) < 0) return 0; } } @@ -1502,7 +1688,7 @@ int select(int nfds, fd_set* readfds, fd_set* writefds, #endif } -int poll_read(socket_type s, boost::system::error_code& ec) +int poll_read(socket_type s, state_type state, boost::system::error_code& ec) { if (s == invalid_socket) { @@ -1516,11 +1702,12 @@ int poll_read(socket_type s, boost::system::error_code& ec) fd_set fds; FD_ZERO(&fds); FD_SET(s, &fds); + timeval zero_timeout; + zero_timeout.tv_sec = 0; + zero_timeout.tv_usec = 0; + timeval* timeout = (state & user_set_non_blocking) ? &zero_timeout : 0; clear_last_error(); - int result = error_wrapper(::select(s, &fds, 0, 0, 0), ec); - if (result >= 0) - ec = boost::system::error_code(); - return result; + int result = error_wrapper(::select(s, &fds, 0, 0, timeout), ec); #else // defined(BOOST_WINDOWS) // || defined(__CYGWIN__) // || defined(__SYMBIAN32__) @@ -1528,17 +1715,21 @@ int poll_read(socket_type s, boost::system::error_code& ec) fds.fd = s; fds.events = POLLIN; fds.revents = 0; + int timeout = (state & user_set_non_blocking) ? 0 : -1; clear_last_error(); - int result = error_wrapper(::poll(&fds, 1, -1), ec); - if (result >= 0) - ec = boost::system::error_code(); - return result; + int result = error_wrapper(::poll(&fds, 1, timeout), ec); #endif // defined(BOOST_WINDOWS) // || defined(__CYGWIN__) // || defined(__SYMBIAN32__) + if (result == 0) + ec = (state & user_set_non_blocking) + ? boost::asio::error::would_block : boost::system::error_code(); + else if (result > 0) + ec = boost::system::error_code(); + return result; } -int poll_write(socket_type s, boost::system::error_code& ec) +int poll_write(socket_type s, state_type state, boost::system::error_code& ec) { if (s == invalid_socket) { @@ -1552,11 +1743,12 @@ int poll_write(socket_type s, boost::system::error_code& ec) fd_set fds; FD_ZERO(&fds); FD_SET(s, &fds); + timeval zero_timeout; + zero_timeout.tv_sec = 0; + zero_timeout.tv_usec = 0; + timeval* timeout = (state & user_set_non_blocking) ? &zero_timeout : 0; clear_last_error(); - int result = error_wrapper(::select(s, 0, &fds, 0, 0), ec); - if (result >= 0) - ec = boost::system::error_code(); - return result; + int result = error_wrapper(::select(s, 0, &fds, 0, timeout), ec); #else // defined(BOOST_WINDOWS) // || defined(__CYGWIN__) // || defined(__SYMBIAN32__) @@ -1564,14 +1756,18 @@ int poll_write(socket_type s, boost::system::error_code& ec) fds.fd = s; fds.events = POLLOUT; fds.revents = 0; + int timeout = (state & user_set_non_blocking) ? 0 : -1; clear_last_error(); - int result = error_wrapper(::poll(&fds, 1, -1), ec); - if (result >= 0) - ec = boost::system::error_code(); - return result; + int result = error_wrapper(::poll(&fds, 1, timeout), ec); #endif // defined(BOOST_WINDOWS) // || defined(__CYGWIN__) // || defined(__SYMBIAN32__) + if (result == 0) + ec = (state & user_set_non_blocking) + ? boost::asio::error::would_block : boost::system::error_code(); + else if (result > 0) + ec = boost::system::error_code(); + return result; } int poll_connect(socket_type s, boost::system::error_code& ec) @@ -1680,7 +1876,8 @@ const char* inet_ntop(int af, const void* src, char* dest, size_t length, using namespace std; // For strcat and sprintf. char if_name[IF_NAMESIZE + 1] = "%"; const in6_addr_type* ipv6_address = static_cast<const in6_addr_type*>(src); - bool is_link_local = IN6_IS_ADDR_LINKLOCAL(ipv6_address); + bool is_link_local = ((ipv6_address->s6_addr[0] == 0xfe) + && ((ipv6_address->s6_addr[1] & 0xc0) == 0x80)); if (!is_link_local || if_indextoname(scope_id, if_name + 1) == 0) sprintf(if_name + 1, "%lu", scope_id); strcat(dest, if_name); @@ -1764,7 +1961,8 @@ int inet_pton(int af, const char* src, void* dest, if (const char* if_name = strchr(src, '%')) { in6_addr_type* ipv6_address = static_cast<in6_addr_type*>(dest); - bool is_link_local = IN6_IS_ADDR_LINKLOCAL(ipv6_address); + bool is_link_local = ((ipv6_address->s6_addr[0] == 0xfe) + && ((ipv6_address->s6_addr[1] & 0xc0) == 0x80)); if (is_link_local) *scope_id = if_nametoindex(if_name + 1); if (*scope_id == 0) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/socket_select_interrupter.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/socket_select_interrupter.ipp index 3b64771..6005f12 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/socket_select_interrupter.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/socket_select_interrupter.ipp @@ -2,7 +2,7 @@ // detail/impl/socket_select_interrupter.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -36,6 +36,11 @@ namespace detail { socket_select_interrupter::socket_select_interrupter() { + open_descriptors(); +} + +void socket_select_interrupter::open_descriptors() +{ boost::system::error_code ec; socket_holder acceptor(socket_ops::socket( AF_INET, SOCK_STREAM, IPPROTO_TCP, ec)); @@ -110,6 +115,11 @@ socket_select_interrupter::socket_select_interrupter() socket_select_interrupter::~socket_select_interrupter() { + close_descriptors(); +} + +void socket_select_interrupter::close_descriptors() +{ boost::system::error_code ec; socket_ops::state_type state = socket_ops::internal_non_blocking; if (read_descriptor_ != invalid_socket) @@ -118,6 +128,16 @@ socket_select_interrupter::~socket_select_interrupter() socket_ops::close(write_descriptor_, state, true, ec); } +void socket_select_interrupter::recreate() +{ + close_descriptors(); + + write_descriptor_ = invalid_socket; + read_descriptor_ = invalid_socket; + + open_descriptors(); +} + void socket_select_interrupter::interrupt() { char byte = 0; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.hpp b/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.hpp index 5cb320d..7581852 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.hpp @@ -2,7 +2,7 @@ // detail/impl/strand_service.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -29,7 +29,7 @@ namespace detail { inline strand_service::strand_impl::strand_impl() : operation(&strand_service::do_complete), - count_(0) + locked_(false) { } @@ -41,7 +41,8 @@ struct strand_service::on_dispatch_exit ~on_dispatch_exit() { impl_->mutex_.lock(); - bool more_handlers = (--impl_->count_ > 0); + impl_->ready_queue_.push(impl_->waiting_queue_); + bool more_handlers = impl_->locked_ = !impl_->ready_queue_.empty(); impl_->mutex_.unlock(); if (more_handlers) @@ -49,11 +50,6 @@ struct strand_service::on_dispatch_exit } }; -inline void strand_service::destroy(strand_service::implementation_type& impl) -{ - impl = 0; -} - template <typename Handler> void strand_service::dispatch(strand_service::implementation_type& impl, Handler handler) @@ -61,7 +57,7 @@ void strand_service::dispatch(strand_service::implementation_type& impl, // If we are already in the strand then the handler can run immediately. if (call_stack<strand_impl>::contains(impl)) { - boost::asio::detail::fenced_block b; + fenced_block b(fenced_block::full); boost_asio_handler_invoke_helpers::invoke(handler, handler); return; } @@ -73,19 +69,14 @@ void strand_service::dispatch(strand_service::implementation_type& impl, sizeof(op), handler), 0 }; p.p = new (p.v) op(handler); - // If we are running inside the io_service, and no other handler is queued - // or running, then the handler can run immediately. - bool can_dispatch = call_stack<io_service_impl>::contains(&io_service_); - impl->mutex_.lock(); - bool first = (++impl->count_ == 1); - if (can_dispatch && first) - { - // Immediate invocation is allowed. - impl->mutex_.unlock(); + BOOST_ASIO_HANDLER_CREATION((p.p, "strand", impl, "dispatch")); - // Memory must be releaesed before any upcall is made. - p.reset(); + bool dispatch_immediately = do_dispatch(impl, p.p); + operation* o = p.p; + p.v = p.p = 0; + if (dispatch_immediately) + { // Indicate that this strand is executing on the current thread. call_stack<strand_impl>::context ctx(impl); @@ -93,20 +84,9 @@ void strand_service::dispatch(strand_service::implementation_type& impl, on_dispatch_exit on_exit = { &io_service_, impl }; (void)on_exit; - boost::asio::detail::fenced_block b; - boost_asio_handler_invoke_helpers::invoke(handler, handler); - return; + completion_handler<Handler>::do_complete( + &io_service_, o, boost::system::error_code(), 0); } - - // Immediate invocation is not allowed, so enqueue for later. - impl->queue_.push(p.p); - impl->mutex_.unlock(); - p.v = p.p = 0; - - // The first handler to be enqueued is responsible for scheduling the - // strand. - if (first) - io_service_.post_immediate_completion(impl); } // Request the io_service to invoke the given handler and return immediately. @@ -121,16 +101,10 @@ void strand_service::post(strand_service::implementation_type& impl, sizeof(op), handler), 0 }; p.p = new (p.v) op(handler); - // Add the handler to the queue. - impl->mutex_.lock(); - bool first = (++impl->count_ == 1); - impl->queue_.push(p.p); - impl->mutex_.unlock(); - p.v = p.p = 0; + BOOST_ASIO_HANDLER_CREATION((p.p, "strand", impl, "post")); - // The first handler to be enqueue is responsible for scheduling the strand. - if (first) - io_service_.post_immediate_completion(impl); + do_post(impl, p.p); + p.v = p.p = 0; } } // namespace detail diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp index 6a42146..1912d80 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp @@ -2,7 +2,7 @@ // detail/impl/strand_service.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -33,11 +33,12 @@ struct strand_service::on_do_complete_exit ~on_do_complete_exit() { impl_->mutex_.lock(); - bool more_handlers = (--impl_->count_ > 0); + impl_->ready_queue_.push(impl_->waiting_queue_); + bool more_handlers = impl_->locked_ = !impl_->ready_queue_.empty(); impl_->mutex_.unlock(); if (more_handlers) - owner_->post_immediate_completion(impl_); + owner_->post_private_immediate_completion(impl_); } }; @@ -56,38 +57,94 @@ void strand_service::shutdown_service() boost::asio::detail::mutex::scoped_lock lock(mutex_); for (std::size_t i = 0; i < num_implementations; ++i) + { if (strand_impl* impl = implementations_[i].get()) - ops.push(impl->queue_); + { + ops.push(impl->waiting_queue_); + ops.push(impl->ready_queue_); + } + } } void strand_service::construct(strand_service::implementation_type& impl) { + boost::asio::detail::mutex::scoped_lock lock(mutex_); + std::size_t salt = salt_++; +#if defined(BOOST_ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION) + std::size_t index = salt; +#else // defined(BOOST_ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION) std::size_t index = reinterpret_cast<std::size_t>(&impl); index += (reinterpret_cast<std::size_t>(&impl) >> 3); index ^= salt + 0x9e3779b9 + (index << 6) + (index >> 2); +#endif // defined(BOOST_ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION) index = index % num_implementations; - boost::asio::detail::mutex::scoped_lock lock(mutex_); - - if (!implementations_[index]) + if (!implementations_[index].get()) implementations_[index].reset(new strand_impl); impl = implementations_[index].get(); } +bool strand_service::do_dispatch(implementation_type& impl, operation* op) +{ + // If we are running inside the io_service, and no other handler already + // holds the strand lock, then the handler can run immediately. + bool can_dispatch = io_service_.can_dispatch(); + impl->mutex_.lock(); + if (can_dispatch && !impl->locked_) + { + // Immediate invocation is allowed. + impl->locked_ = true; + impl->mutex_.unlock(); + return true; + } + + if (impl->locked_) + { + // Some other handler already holds the strand lock. Enqueue for later. + impl->waiting_queue_.push(op); + impl->mutex_.unlock(); + } + else + { + // The handler is acquiring the strand lock and so is responsible for + // scheduling the strand. + impl->locked_ = true; + impl->mutex_.unlock(); + impl->ready_queue_.push(op); + io_service_.post_immediate_completion(impl); + } + + return false; +} + +void strand_service::do_post(implementation_type& impl, operation* op) +{ + impl->mutex_.lock(); + if (impl->locked_) + { + // Some other handler already holds the strand lock. Enqueue for later. + impl->waiting_queue_.push(op); + impl->mutex_.unlock(); + } + else + { + // The handler is acquiring the strand lock and so is responsible for + // scheduling the strand. + impl->locked_ = true; + impl->mutex_.unlock(); + impl->ready_queue_.push(op); + io_service_.post_immediate_completion(impl); + } +} + void strand_service::do_complete(io_service_impl* owner, operation* base, - boost::system::error_code /*ec*/, std::size_t /*bytes_transferred*/) + const boost::system::error_code& ec, std::size_t /*bytes_transferred*/) { if (owner) { strand_impl* impl = static_cast<strand_impl*>(base); - // Get the next handler to be executed. - impl->mutex_.lock(); - operation* o = impl->queue_.front(); - impl->queue_.pop(); - impl->mutex_.unlock(); - // Indicate that this strand is executing on the current thread. call_stack<strand_impl>::context ctx(impl); @@ -95,7 +152,13 @@ void strand_service::do_complete(io_service_impl* owner, operation* base, on_do_complete_exit on_exit = { owner, impl }; (void)on_exit; - o->complete(*owner); + // Run all ready handlers. No lock is required since the ready queue is + // accessed only within the strand. + while (operation* o = impl->ready_queue_.front()) + { + impl->ready_queue_.pop(); + o->complete(*owner, ec, 0); + } } } diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/task_io_service.hpp b/3rdParty/Boost/src/boost/asio/detail/impl/task_io_service.hpp index a002189..2cc7b7e 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/task_io_service.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/task_io_service.hpp @@ -2,7 +2,7 @@ // detail/impl/task_io_service.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -15,7 +15,6 @@ # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) -#include <boost/asio/detail/call_stack.hpp> #include <boost/asio/detail/completion_handler.hpp> #include <boost/asio/detail/fenced_block.hpp> #include <boost/asio/detail/handler_alloc_helpers.hpp> @@ -30,13 +29,25 @@ namespace detail { template <typename Handler> void task_io_service::dispatch(Handler handler) { - if (call_stack<task_io_service>::contains(this)) + if (thread_call_stack::contains(this)) { - boost::asio::detail::fenced_block b; + fenced_block b(fenced_block::full); boost_asio_handler_invoke_helpers::invoke(handler, handler); } else - post(handler); + { + // Allocate and construct an operation to wrap the handler. + typedef completion_handler<Handler> op; + typename op::ptr p = { boost::addressof(handler), + boost_asio_handler_alloc_helpers::allocate( + sizeof(op), handler), 0 }; + p.p = new (p.v) op(handler); + + BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "dispatch")); + + post_non_private_immediate_completion(p.p); + p.v = p.p = 0; + } } template <typename Handler> @@ -49,6 +60,8 @@ void task_io_service::post(Handler handler) sizeof(op), handler), 0 }; p.p = new (p.v) op(handler); + BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "post")); + post_immediate_completion(p.p); p.v = p.p = 0; } diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/task_io_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/task_io_service.ipp index babfa7b..674df63 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/task_io_service.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/task_io_service.ipp @@ -2,7 +2,7 @@ // detail/impl/task_io_service.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -20,7 +20,6 @@ #if !defined(BOOST_ASIO_HAS_IOCP) #include <boost/limits.hpp> -#include <boost/asio/detail/call_stack.hpp> #include <boost/asio/detail/event.hpp> #include <boost/asio/detail/reactor.hpp> #include <boost/asio/detail/task_io_service.hpp> @@ -31,41 +30,73 @@ namespace boost { namespace asio { namespace detail { +struct task_io_service::thread_info +{ + event* wakeup_event; + op_queue<operation> private_op_queue; + long private_outstanding_work; + thread_info* next; +}; + struct task_io_service::task_cleanup { ~task_cleanup() { + if (this_thread_->private_outstanding_work > 0) + { + boost::asio::detail::increment( + task_io_service_->outstanding_work_, + this_thread_->private_outstanding_work); + } + this_thread_->private_outstanding_work = 0; + // Enqueue the completed operations and reinsert the task at the end of // the operation queue. lock_->lock(); task_io_service_->task_interrupted_ = true; - task_io_service_->op_queue_.push(*ops_); + task_io_service_->op_queue_.push(this_thread_->private_op_queue); task_io_service_->op_queue_.push(&task_io_service_->task_operation_); } task_io_service* task_io_service_; mutex::scoped_lock* lock_; - op_queue<operation>* ops_; + thread_info* this_thread_; }; -struct task_io_service::work_finished_on_block_exit +struct task_io_service::work_cleanup { - ~work_finished_on_block_exit() + ~work_cleanup() { - task_io_service_->work_finished(); + if (this_thread_->private_outstanding_work > 1) + { + boost::asio::detail::increment( + task_io_service_->outstanding_work_, + this_thread_->private_outstanding_work - 1); + } + else if (this_thread_->private_outstanding_work < 1) + { + task_io_service_->work_finished(); + } + this_thread_->private_outstanding_work = 0; + +#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + if (!this_thread_->private_op_queue.empty()) + { + lock_->lock(); + task_io_service_->op_queue_.push(this_thread_->private_op_queue); + } +#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) } task_io_service* task_io_service_; + mutex::scoped_lock* lock_; + thread_info* this_thread_; }; -struct task_io_service::idle_thread_info -{ - event wakeup_event; - idle_thread_info* next; -}; - -task_io_service::task_io_service(boost::asio::io_service& io_service) +task_io_service::task_io_service( + boost::asio::io_service& io_service, std::size_t concurrency_hint) : boost::asio::detail::service_base<task_io_service>(io_service), + one_thread_(concurrency_hint == 1), mutex_(), task_(0), task_interrupted_(true), @@ -74,10 +105,7 @@ task_io_service::task_io_service(boost::asio::io_service& io_service) shutdown_(false), first_idle_thread_(0) { -} - -void task_io_service::init(std::size_t /*concurrency_hint*/) -{ + BOOST_ASIO_HANDLER_TRACKING_INIT; } void task_io_service::shutdown_service() @@ -119,15 +147,17 @@ std::size_t task_io_service::run(boost::system::error_code& ec) return 0; } - call_stack<task_io_service>::context ctx(this); - - idle_thread_info this_idle_thread; - this_idle_thread.next = 0; + thread_info this_thread; + event wakeup_event; + this_thread.wakeup_event = &wakeup_event; + this_thread.private_outstanding_work = 0; + this_thread.next = 0; + thread_call_stack::context ctx(this, this_thread); mutex::scoped_lock lock(mutex_); std::size_t n = 0; - for (; do_one(lock, &this_idle_thread); lock.lock()) + for (; do_run_one(lock, this_thread, ec); lock.lock()) if (n != (std::numeric_limits<std::size_t>::max)()) ++n; return n; @@ -142,31 +172,46 @@ std::size_t task_io_service::run_one(boost::system::error_code& ec) return 0; } - call_stack<task_io_service>::context ctx(this); - - idle_thread_info this_idle_thread; - this_idle_thread.next = 0; + thread_info this_thread; + event wakeup_event; + this_thread.wakeup_event = &wakeup_event; + this_thread.private_outstanding_work = 0; + this_thread.next = 0; + thread_call_stack::context ctx(this, this_thread); mutex::scoped_lock lock(mutex_); - return do_one(lock, &this_idle_thread); + return do_run_one(lock, this_thread, ec); } std::size_t task_io_service::poll(boost::system::error_code& ec) { + ec = boost::system::error_code(); if (outstanding_work_ == 0) { stop(); - ec = boost::system::error_code(); return 0; } - call_stack<task_io_service>::context ctx(this); + thread_info this_thread; + this_thread.wakeup_event = 0; + this_thread.private_outstanding_work = 0; + this_thread.next = 0; + thread_call_stack::context ctx(this, this_thread); mutex::scoped_lock lock(mutex_); +#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + // We want to support nested calls to poll() and poll_one(), so any handlers + // that are already on a thread-private queue need to be put on to the main + // queue now. + if (one_thread_) + if (thread_info* outer_thread_info = ctx.next_by_key()) + op_queue_.push(outer_thread_info->private_op_queue); +#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + std::size_t n = 0; - for (; do_one(lock, 0); lock.lock()) + for (; do_poll_one(lock, this_thread, ec); lock.lock()) if (n != (std::numeric_limits<std::size_t>::max)()) ++n; return n; @@ -181,11 +226,24 @@ std::size_t task_io_service::poll_one(boost::system::error_code& ec) return 0; } - call_stack<task_io_service>::context ctx(this); + thread_info this_thread; + this_thread.wakeup_event = 0; + this_thread.private_outstanding_work = 0; + this_thread.next = 0; + thread_call_stack::context ctx(this, this_thread); mutex::scoped_lock lock(mutex_); - return do_one(lock, 0); +#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + // We want to support nested calls to poll() and poll_one(), so any handlers + // that are already on a thread-private queue need to be put on to the main + // queue now. + if (one_thread_) + if (thread_info* outer_thread_info = ctx.next_by_key()) + op_queue_.push(outer_thread_info->private_op_queue); +#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + + return do_poll_one(lock, this_thread, ec); } void task_io_service::stop() @@ -194,6 +252,12 @@ void task_io_service::stop() stop_all_threads(lock); } +bool task_io_service::stopped() const +{ + mutex::scoped_lock lock(mutex_); + return stopped_; +} + void task_io_service::reset() { mutex::scoped_lock lock(mutex_); @@ -202,12 +266,37 @@ void task_io_service::reset() void task_io_service::post_immediate_completion(task_io_service::operation* op) { +#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + if (one_thread_) + { + if (thread_info* this_thread = thread_call_stack::contains(this)) + { + ++this_thread->private_outstanding_work; + this_thread->private_op_queue.push(op); + return; + } + } +#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + work_started(); - post_deferred_completion(op); + mutex::scoped_lock lock(mutex_); + op_queue_.push(op); + wake_one_thread_and_unlock(lock); } void task_io_service::post_deferred_completion(task_io_service::operation* op) { +#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + if (one_thread_) + { + if (thread_info* this_thread = thread_call_stack::contains(this)) + { + this_thread->private_op_queue.push(op); + return; + } + } +#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + mutex::scoped_lock lock(mutex_); op_queue_.push(op); wake_one_thread_and_unlock(lock); @@ -218,17 +307,72 @@ void task_io_service::post_deferred_completions( { if (!ops.empty()) { +#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + if (one_thread_) + { + if (thread_info* this_thread = thread_call_stack::contains(this)) + { + this_thread->private_op_queue.push(ops); + return; + } + } +#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + mutex::scoped_lock lock(mutex_); op_queue_.push(ops); wake_one_thread_and_unlock(lock); } } -std::size_t task_io_service::do_one(mutex::scoped_lock& lock, - task_io_service::idle_thread_info* this_idle_thread) +void task_io_service::post_private_immediate_completion( + task_io_service::operation* op) +{ + work_started(); + post_private_deferred_completion(op); +} + +void task_io_service::post_private_deferred_completion( + task_io_service::operation* op) +{ +#if defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + if (thread_info* this_thread = thread_call_stack::contains(this)) + { + this_thread->private_op_queue.push(op); + return; + } +#endif // defined(BOOST_HAS_THREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) + + mutex::scoped_lock lock(mutex_); + op_queue_.push(op); + wake_one_thread_and_unlock(lock); +} + +void task_io_service::post_non_private_immediate_completion( + task_io_service::operation* op) +{ + work_started(); + post_non_private_deferred_completion(op); +} + +void task_io_service::post_non_private_deferred_completion( + task_io_service::operation* op) +{ + mutex::scoped_lock lock(mutex_); + op_queue_.push(op); + wake_one_thread_and_unlock(lock); +} + +void task_io_service::abandon_operations( + op_queue<task_io_service::operation>& ops) +{ + op_queue<task_io_service::operation> ops2; + ops2.push(ops); +} + +std::size_t task_io_service::do_run_one(mutex::scoped_lock& lock, + task_io_service::thread_info& this_thread, + const boost::system::error_code& ec) { - bool polling = !this_idle_thread; - bool task_has_run = false; while (!stopped_) { if (!op_queue_.empty()) @@ -240,61 +384,105 @@ std::size_t task_io_service::do_one(mutex::scoped_lock& lock, if (o == &task_operation_) { - task_interrupted_ = more_handlers || polling; + task_interrupted_ = more_handlers; - // If the task has already run and we're polling then we're done. - if (task_has_run && polling) + if (more_handlers && !one_thread_) { - task_interrupted_ = true; - op_queue_.push(&task_operation_); - return 0; + if (!wake_one_idle_thread_and_unlock(lock)) + lock.unlock(); } - task_has_run = true; - - if (!more_handlers || !wake_one_idle_thread_and_unlock(lock)) + else lock.unlock(); - op_queue<operation> completed_ops; - task_cleanup c = { this, &lock, &completed_ops }; - (void)c; + task_cleanup on_exit = { this, &lock, &this_thread }; + (void)on_exit; // Run the task. May throw an exception. Only block if the operation // queue is empty and we're not polling, otherwise we want to return // as soon as possible. - task_->run(!more_handlers && !polling, completed_ops); + task_->run(!more_handlers, this_thread.private_op_queue); } else { - if (more_handlers) + std::size_t task_result = o->task_result_; + + if (more_handlers && !one_thread_) wake_one_thread_and_unlock(lock); else lock.unlock(); // Ensure the count of outstanding work is decremented on block exit. - work_finished_on_block_exit on_exit = { this }; + work_cleanup on_exit = { this, &lock, &this_thread }; (void)on_exit; - // Complete the operation. May throw an exception. - o->complete(*this); // deletes the operation object + // Complete the operation. May throw an exception. Deletes the object. + o->complete(*this, ec, task_result); return 1; } } - else if (this_idle_thread) + else { // Nothing to run right now, so just wait for work to do. - this_idle_thread->next = first_idle_thread_; - first_idle_thread_ = this_idle_thread; - this_idle_thread->wakeup_event.clear(lock); - this_idle_thread->wakeup_event.wait(lock); + this_thread.next = first_idle_thread_; + first_idle_thread_ = &this_thread; + this_thread.wakeup_event->clear(lock); + this_thread.wakeup_event->wait(lock); } - else + } + + return 0; +} + +std::size_t task_io_service::do_poll_one(mutex::scoped_lock& lock, + task_io_service::thread_info& this_thread, + const boost::system::error_code& ec) +{ + if (stopped_) + return 0; + + operation* o = op_queue_.front(); + if (o == &task_operation_) + { + op_queue_.pop(); + lock.unlock(); + { - return 0; + task_cleanup c = { this, &lock, &this_thread }; + (void)c; + + // Run the task. May throw an exception. Only block if the operation + // queue is empty and we're not polling, otherwise we want to return + // as soon as possible. + task_->run(false, this_thread.private_op_queue); } + + o = op_queue_.front(); + if (o == &task_operation_) + return 0; } - return 0; + if (o == 0) + return 0; + + op_queue_.pop(); + bool more_handlers = (!op_queue_.empty()); + + std::size_t task_result = o->task_result_; + + if (more_handlers && !one_thread_) + wake_one_thread_and_unlock(lock); + else + lock.unlock(); + + // Ensure the count of outstanding work is decremented on block exit. + work_cleanup on_exit = { this, &lock, &this_thread }; + (void)on_exit; + + // Complete the operation. May throw an exception. Deletes the object. + o->complete(*this, ec, task_result); + + return 1; } void task_io_service::stop_all_threads( @@ -304,10 +492,10 @@ void task_io_service::stop_all_threads( while (first_idle_thread_) { - idle_thread_info* idle_thread = first_idle_thread_; + thread_info* idle_thread = first_idle_thread_; first_idle_thread_ = idle_thread->next; idle_thread->next = 0; - idle_thread->wakeup_event.signal(lock); + idle_thread->wakeup_event->signal(lock); } if (!task_interrupted_ && task_) @@ -322,10 +510,10 @@ bool task_io_service::wake_one_idle_thread_and_unlock( { if (first_idle_thread_) { - idle_thread_info* idle_thread = first_idle_thread_; + thread_info* idle_thread = first_idle_thread_; first_idle_thread_ = idle_thread->next; idle_thread->next = 0; - idle_thread->wakeup_event.signal_and_unlock(lock); + idle_thread->wakeup_event->signal_and_unlock(lock); return true; } return false; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/throw_error.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/throw_error.ipp index 5ba6b9c..dbe6112 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/throw_error.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/throw_error.ipp @@ -2,7 +2,7 @@ // detail/impl/throw_error.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/timer_queue_ptime.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/timer_queue_ptime.ipp new file mode 100644 index 0000000..c72d885 --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/detail/impl/timer_queue_ptime.ipp @@ -0,0 +1,82 @@ +// +// detail/impl/timer_queue_ptime.ipp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +#ifndef BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_PTIME_IPP +#define BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_PTIME_IPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <boost/asio/detail/config.hpp> +#include <boost/asio/detail/timer_queue_ptime.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +timer_queue<time_traits<boost::posix_time::ptime> >::timer_queue() +{ +} + +timer_queue<time_traits<boost::posix_time::ptime> >::~timer_queue() +{ +} + +bool timer_queue<time_traits<boost::posix_time::ptime> >::enqueue_timer( + const time_type& time, per_timer_data& timer, wait_op* op) +{ + return impl_.enqueue_timer(time, timer, op); +} + +bool timer_queue<time_traits<boost::posix_time::ptime> >::empty() const +{ + return impl_.empty(); +} + +long timer_queue<time_traits<boost::posix_time::ptime> >::wait_duration_msec( + long max_duration) const +{ + return impl_.wait_duration_msec(max_duration); +} + +long timer_queue<time_traits<boost::posix_time::ptime> >::wait_duration_usec( + long max_duration) const +{ + return impl_.wait_duration_usec(max_duration); +} + +void timer_queue<time_traits<boost::posix_time::ptime> >::get_ready_timers( + op_queue<operation>& ops) +{ + impl_.get_ready_timers(ops); +} + +void timer_queue<time_traits<boost::posix_time::ptime> >::get_all_timers( + op_queue<operation>& ops) +{ + impl_.get_all_timers(ops); +} + +std::size_t timer_queue<time_traits<boost::posix_time::ptime> >::cancel_timer( + per_timer_data& timer, op_queue<operation>& ops, std::size_t max_cancelled) +{ + return impl_.cancel_timer(timer, ops, max_cancelled); +} + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // BOOST_ASIO_DETAIL_IMPL_TIMER_QUEUE_PTIME_IPP diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/timer_queue_set.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/timer_queue_set.ipp index d1027e6..7f9a662 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/timer_queue_set.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/timer_queue_set.ipp @@ -2,7 +2,7 @@ // detail/impl/timer_queue_set.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_event.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_event.ipp index fe904fb..252242c 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_event.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_event.ipp @@ -2,7 +2,7 @@ // detail/win_event.ipp // ~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_handle_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_handle_service.ipp index eb6643a..ecd45c0 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_handle_service.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_handle_service.ipp @@ -2,7 +2,7 @@ // detail/impl/win_iocp_handle_service.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying @@ -100,6 +100,64 @@ void win_iocp_handle_service::construct( impl_list_ = &impl; } +void win_iocp_handle_service::move_construct( + win_iocp_handle_service::implementation_type& impl, + win_iocp_handle_service::implementation_type& other_impl) +{ + impl.handle_ = other_impl.handle_; + other_impl.handle_ = INVALID_HANDLE_VALUE; + + impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_; + other_impl.safe_cancellation_thread_id_ = 0; + + // Insert implementation into linked list of all implementations. + boost::asio::detail::mutex::scoped_lock lock(mutex_); + impl.next_ = impl_list_; + impl.prev_ = 0; + if (impl_list_) + impl_list_->prev_ = &impl; + impl_list_ = &impl; +} + +void win_iocp_handle_service::move_assign( + win_iocp_handle_service::implementation_type& impl, + win_iocp_handle_service& other_service, + win_iocp_handle_service::implementation_type& other_impl) +{ + close_for_destruction(impl); + + if (this != &other_service) + { + // Remove implementation from linked list of all implementations. + boost::asio::detail::mutex::scoped_lock lock(mutex_); + if (impl_list_ == &impl) + impl_list_ = impl.next_; + if (impl.prev_) + impl.prev_->next_ = impl.next_; + if (impl.next_) + impl.next_->prev_= impl.prev_; + impl.next_ = 0; + impl.prev_ = 0; + } + + impl.handle_ = other_impl.handle_; + other_impl.handle_ = INVALID_HANDLE_VALUE; + + impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_; + other_impl.safe_cancellation_thread_id_ = 0; + + if (this != &other_service) + { + // Insert implementation into linked list of all implementations. + boost::asio::detail::mutex::scoped_lock lock(other_service.mutex_); + impl.next_ = other_service.impl_list_; + impl.prev_ = 0; + if (other_service.impl_list_) + other_service.impl_list_->prev_ = &impl; + other_service.impl_list_ = &impl; + } +} + void win_iocp_handle_service::destroy( win_iocp_handle_service::implementation_type& impl) { @@ -119,7 +177,7 @@ void win_iocp_handle_service::destroy( boost::system::error_code win_iocp_handle_service::assign( win_iocp_handle_service::implementation_type& impl, - const native_type& native_handle, boost::system::error_code& ec) + const native_handle_type& handle, boost::system::error_code& ec) { if (is_open(impl)) { @@ -127,10 +185,10 @@ boost::system::error_code win_iocp_handle_service::assign( return ec; } - if (iocp_service_.register_handle(native_handle, ec)) + if (iocp_service_.register_handle(handle, ec)) return ec; - impl.handle_ = native_handle; + impl.handle_ = handle; ec = boost::system::error_code(); return ec; } @@ -141,19 +199,27 @@ boost::system::error_code win_iocp_handle_service::close( { if (is_open(impl)) { + BOOST_ASIO_HANDLER_OPERATION(("handle", &impl, "close")); + if (!::CloseHandle(impl.handle_)) { DWORD last_error = ::GetLastError(); ec = boost::system::error_code(last_error, boost::asio::error::get_system_category()); - return ec; + } + else + { + ec = boost::system::error_code(); } impl.handle_ = INVALID_HANDLE_VALUE; impl.safe_cancellation_thread_id_ = 0; } + else + { + ec = boost::system::error_code(); + } - ec = boost::system::error_code(); return ec; } @@ -164,8 +230,12 @@ boost::system::error_code win_iocp_handle_service::cancel( if (!is_open(impl)) { ec = boost::asio::error::bad_descriptor; + return ec; } - else if (FARPROC cancel_io_ex_ptr = ::GetProcAddress( + + BOOST_ASIO_HANDLER_OPERATION(("handle", &impl, "cancel")); + + if (FARPROC cancel_io_ex_ptr = ::GetProcAddress( ::GetModuleHandleA("KERNEL32"), "CancelIoEx")) { // The version of Windows supports cancellation from any thread. @@ -437,6 +507,8 @@ void win_iocp_handle_service::close_for_destruction(implementation_type& impl) { if (is_open(impl)) { + BOOST_ASIO_HANDLER_OPERATION(("handle", &impl, "close")); + ::CloseHandle(impl.handle_); impl.handle_ = INVALID_HANDLE_VALUE; impl.safe_cancellation_thread_id_ = 0; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_io_service.hpp b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_io_service.hpp index 18b9413..871f6fa 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_io_service.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_io_service.hpp @@ -2,7 +2,7 @@ // detail/impl/win_iocp_io_service.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -19,7 +19,6 @@ #if defined(BOOST_ASIO_HAS_IOCP) -#include <boost/asio/detail/call_stack.hpp> #include <boost/asio/detail/completion_handler.hpp> #include <boost/asio/detail/fenced_block.hpp> #include <boost/asio/detail/handler_alloc_helpers.hpp> @@ -36,11 +35,23 @@ void win_iocp_io_service::dispatch(Handler handler) { if (call_stack<win_iocp_io_service>::contains(this)) { - boost::asio::detail::fenced_block b; + fenced_block b(fenced_block::full); boost_asio_handler_invoke_helpers::invoke(handler, handler); } else - post(handler); + { + // Allocate and construct an operation to wrap the handler. + typedef completion_handler<Handler> op; + typename op::ptr p = { boost::addressof(handler), + boost_asio_handler_alloc_helpers::allocate( + sizeof(op), handler), 0 }; + p.p = new (p.v) op(handler); + + BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "dispatch")); + + post_immediate_completion(p.p); + p.v = p.p = 0; + } } template <typename Handler> @@ -53,6 +64,8 @@ void win_iocp_io_service::post(Handler handler) sizeof(op), handler), 0 }; p.p = new (p.v) op(handler); + BOOST_ASIO_HANDLER_CREATION((p.p, "io_service", this, "post")); + post_immediate_completion(p.p); p.v = p.p = 0; } @@ -74,7 +87,7 @@ void win_iocp_io_service::remove_timer_queue( template <typename Time_Traits> void win_iocp_io_service::schedule_timer(timer_queue<Time_Traits>& queue, const typename Time_Traits::time_type& time, - typename timer_queue<Time_Traits>::per_timer_data& timer, timer_op* op) + typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op) { // If the service has been shut down we silently discard the timer. if (::InterlockedExchangeAdd(&shutdown_, 0) != 0) @@ -93,7 +106,8 @@ void win_iocp_io_service::schedule_timer(timer_queue<Time_Traits>& queue, template <typename Time_Traits> std::size_t win_iocp_io_service::cancel_timer(timer_queue<Time_Traits>& queue, - typename timer_queue<Time_Traits>::per_timer_data& timer) + typename timer_queue<Time_Traits>::per_timer_data& timer, + std::size_t max_cancelled) { // If the service has been shut down we silently ignore the cancellation. if (::InterlockedExchangeAdd(&shutdown_, 0) != 0) @@ -101,7 +115,7 @@ std::size_t win_iocp_io_service::cancel_timer(timer_queue<Time_Traits>& queue, mutex::scoped_lock lock(dispatch_mutex_); op_queue<win_iocp_operation> ops; - std::size_t n = queue.cancel_timer(timer, ops); + std::size_t n = queue.cancel_timer(timer, ops, max_cancelled); post_deferred_completions(ops); return n; } diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_io_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_io_service.ipp index 9711702..72f4af7 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_io_service.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_io_service.ipp @@ -2,7 +2,7 @@ // detail/impl/win_iocp_io_service.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -62,7 +62,8 @@ struct win_iocp_io_service::timer_thread_function win_iocp_io_service* io_service_; }; -win_iocp_io_service::win_iocp_io_service(boost::asio::io_service& io_service) +win_iocp_io_service::win_iocp_io_service( + boost::asio::io_service& io_service, size_t concurrency_hint) : boost::asio::detail::service_base<win_iocp_io_service>(io_service), iocp_(), outstanding_work_(0), @@ -70,10 +71,8 @@ win_iocp_io_service::win_iocp_io_service(boost::asio::io_service& io_service) shutdown_(0), dispatch_required_(0) { -} + BOOST_ASIO_HANDLER_TRACKING_INIT; -void win_iocp_io_service::init(size_t concurrency_hint) -{ iocp_.handle = ::CreateIoCompletionPort(INVALID_HANDLE_VALUE, 0, 0, static_cast<DWORD>((std::min<size_t>)(concurrency_hint, DWORD(~0)))); if (!iocp_.handle) @@ -89,7 +88,7 @@ void win_iocp_io_service::shutdown_service() { ::InterlockedExchange(&shutdown_, 1); - if (timer_thread_) + if (timer_thread_.get()) { LARGE_INTEGER timeout; timeout.QuadPart = 1; @@ -125,7 +124,7 @@ void win_iocp_io_service::shutdown_service() } } - if (timer_thread_) + if (timer_thread_.get()) timer_thread_->join(); } @@ -149,7 +148,7 @@ size_t win_iocp_io_service::run(boost::system::error_code& ec) { if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0) { - stop(); + InterlockedExchange(&stopped_, 1); ec = boost::system::error_code(); return 0; } @@ -167,7 +166,7 @@ size_t win_iocp_io_service::run_one(boost::system::error_code& ec) { if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0) { - stop(); + InterlockedExchange(&stopped_, 1); ec = boost::system::error_code(); return 0; } @@ -181,7 +180,7 @@ size_t win_iocp_io_service::poll(boost::system::error_code& ec) { if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0) { - stop(); + InterlockedExchange(&stopped_, 1); ec = boost::system::error_code(); return 0; } @@ -199,7 +198,7 @@ size_t win_iocp_io_service::poll_one(boost::system::error_code& ec) { if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0) { - stop(); + InterlockedExchange(&stopped_, 1); ec = boost::system::error_code(); return 0; } @@ -262,6 +261,17 @@ void win_iocp_io_service::post_deferred_completions( } } +void win_iocp_io_service::abandon_operations( + op_queue<win_iocp_operation>& ops) +{ + while (win_iocp_operation* op = ops.front()) + { + ops.pop(); + ::InterlockedDecrement(&outstanding_work_); + op->destroy(); + } +} + void win_iocp_io_service::on_pending(win_iocp_operation* op) { if (::InterlockedCompareExchange(&op->ready_, 1, 0) == 1) @@ -455,7 +465,7 @@ void win_iocp_io_service::do_add_timer_queue(timer_queue_base& queue) &timeout, max_timeout_msec, 0, 0, FALSE); } - if (!timer_thread_) + if (!timer_thread_.get()) { timer_thread_function thread_function = { this }; timer_thread_.reset(new thread(thread_function, 65536)); @@ -471,7 +481,7 @@ void win_iocp_io_service::do_remove_timer_queue(timer_queue_base& queue) void win_iocp_io_service::update_timeout() { - if (timer_thread_) + if (timer_thread_.get()) { // There's no point updating the waitable timer if the new timeout period // exceeds the maximum timeout. In that case, we might as well wait for the diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_serial_port_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_serial_port_service.ipp index 32ab6d1..e98ad87 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_serial_port_service.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_serial_port_service.ipp @@ -2,7 +2,7 @@ // detail/impl/win_iocp_serial_port_service.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying @@ -127,7 +127,7 @@ boost::system::error_code win_iocp_serial_port_service::do_set_option( ::DCB dcb; memset(&dcb, 0, sizeof(DCB)); dcb.DCBlength = sizeof(DCB); - if (!::GetCommState(handle_service_.native(impl), &dcb)) + if (!::GetCommState(handle_service_.native_handle(impl), &dcb)) { DWORD last_error = ::GetLastError(); ec = boost::system::error_code(last_error, @@ -138,7 +138,7 @@ boost::system::error_code win_iocp_serial_port_service::do_set_option( if (store(option, dcb, ec)) return ec; - if (!::SetCommState(handle_service_.native(impl), &dcb)) + if (!::SetCommState(handle_service_.native_handle(impl), &dcb)) { DWORD last_error = ::GetLastError(); ec = boost::system::error_code(last_error, @@ -160,7 +160,7 @@ boost::system::error_code win_iocp_serial_port_service::do_get_option( ::DCB dcb; memset(&dcb, 0, sizeof(DCB)); dcb.DCBlength = sizeof(DCB); - if (!::GetCommState(handle_service_.native(impl), &dcb)) + if (!::GetCommState(handle_service_.native_handle(impl), &dcb)) { DWORD last_error = ::GetLastError(); ec = boost::system::error_code(last_error, diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_socket_service_base.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_socket_service_base.ipp index 0a2825b..0466e33 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_socket_service_base.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_iocp_socket_service_base.ipp @@ -2,7 +2,7 @@ // detail/impl/win_iocp_socket_service_base.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -69,6 +69,80 @@ void win_iocp_socket_service_base::construct( impl_list_ = &impl; } +void win_iocp_socket_service_base::base_move_construct( + win_iocp_socket_service_base::base_implementation_type& impl, + win_iocp_socket_service_base::base_implementation_type& other_impl) +{ + impl.socket_ = other_impl.socket_; + other_impl.socket_ = invalid_socket; + + impl.state_ = other_impl.state_; + other_impl.state_ = 0; + + impl.cancel_token_ = other_impl.cancel_token_; + other_impl.cancel_token_.reset(); + +#if defined(BOOST_ASIO_ENABLE_CANCELIO) + impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_; + other_impl.safe_cancellation_thread_id_ = 0; +#endif // defined(BOOST_ASIO_ENABLE_CANCELIO) + + // Insert implementation into linked list of all implementations. + boost::asio::detail::mutex::scoped_lock lock(mutex_); + impl.next_ = impl_list_; + impl.prev_ = 0; + if (impl_list_) + impl_list_->prev_ = &impl; + impl_list_ = &impl; +} + +void win_iocp_socket_service_base::base_move_assign( + win_iocp_socket_service_base::base_implementation_type& impl, + win_iocp_socket_service_base& other_service, + win_iocp_socket_service_base::base_implementation_type& other_impl) +{ + close_for_destruction(impl); + + if (this != &other_service) + { + // Remove implementation from linked list of all implementations. + boost::asio::detail::mutex::scoped_lock lock(mutex_); + if (impl_list_ == &impl) + impl_list_ = impl.next_; + if (impl.prev_) + impl.prev_->next_ = impl.next_; + if (impl.next_) + impl.next_->prev_= impl.prev_; + impl.next_ = 0; + impl.prev_ = 0; + } + + impl.socket_ = other_impl.socket_; + other_impl.socket_ = invalid_socket; + + impl.state_ = other_impl.state_; + other_impl.state_ = 0; + + impl.cancel_token_ = other_impl.cancel_token_; + other_impl.cancel_token_.reset(); + +#if defined(BOOST_ASIO_ENABLE_CANCELIO) + impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_; + other_impl.safe_cancellation_thread_id_ = 0; +#endif // defined(BOOST_ASIO_ENABLE_CANCELIO) + + if (this != &other_service) + { + // Insert implementation into linked list of all implementations. + boost::asio::detail::mutex::scoped_lock lock(other_service.mutex_); + impl.next_ = other_service.impl_list_; + impl.prev_ = 0; + if (other_service.impl_list_) + other_service.impl_list_->prev_ = &impl; + other_service.impl_list_ = &impl; + } +} + void win_iocp_socket_service_base::destroy( win_iocp_socket_service_base::base_implementation_type& impl) { @@ -92,6 +166,8 @@ boost::system::error_code win_iocp_socket_service_base::close( { if (is_open(impl)) { + BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "close")); + // Check if the reactor was created, in which case we need to close the // socket on the reactor as well to cancel any operations that might be // running there. @@ -99,18 +175,17 @@ boost::system::error_code win_iocp_socket_service_base::close( interlocked_compare_exchange_pointer( reinterpret_cast<void**>(&reactor_), 0, 0)); if (r) - r->close_descriptor(impl.socket_, impl.reactor_data_); + r->deregister_descriptor(impl.socket_, impl.reactor_data_, true); } - if (socket_ops::close(impl.socket_, impl.state_, false, ec) == 0) - { - impl.socket_ = invalid_socket; - impl.state_ = 0; - impl.cancel_token_.reset(); + socket_ops::close(impl.socket_, impl.state_, false, ec); + + impl.socket_ = invalid_socket; + impl.state_ = 0; + impl.cancel_token_.reset(); #if defined(BOOST_ASIO_ENABLE_CANCELIO) - impl.safe_cancellation_thread_id_ = 0; + impl.safe_cancellation_thread_id_ = 0; #endif // defined(BOOST_ASIO_ENABLE_CANCELIO) - } return ec; } @@ -124,7 +199,10 @@ boost::system::error_code win_iocp_socket_service_base::cancel( ec = boost::asio::error::bad_descriptor; return ec; } - else if (FARPROC cancel_io_ex_ptr = ::GetProcAddress( + + BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "cancel")); + + if (FARPROC cancel_io_ex_ptr = ::GetProcAddress( ::GetModuleHandleA("KERNEL32"), "CancelIoEx")) { // The version of Windows supports cancellation from any thread. @@ -474,7 +552,7 @@ void win_iocp_socket_service_base::start_connect_op( if ((impl.state_ & socket_ops::non_blocking) != 0 || socket_ops::set_internal_non_blocking( - impl.socket_, impl.state_, op->ec_)) + impl.socket_, impl.state_, true, op->ec_)) { if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0) { @@ -497,6 +575,8 @@ void win_iocp_socket_service_base::close_for_destruction( { if (is_open(impl)) { + BOOST_ASIO_HANDLER_OPERATION(("socket", &impl, "close")); + // Check if the reactor was created, in which case we need to close the // socket on the reactor as well to cancel any operations that might be // running there. @@ -504,7 +584,7 @@ void win_iocp_socket_service_base::close_for_destruction( interlocked_compare_exchange_pointer( reinterpret_cast<void**>(&reactor_), 0, 0)); if (r) - r->close_descriptor(impl.socket_, impl.reactor_data_); + r->deregister_descriptor(impl.socket_, impl.reactor_data_, true); } boost::system::error_code ignored_ec; diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_mutex.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_mutex.ipp index af0d20e..05a7492 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_mutex.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_mutex.ipp @@ -2,7 +2,7 @@ // detail/impl/win_mutex.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_object_handle_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_object_handle_service.ipp new file mode 100644 index 0000000..d91ccac --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_object_handle_service.ipp @@ -0,0 +1,446 @@ +// +// detail/impl/win_object_handle_service.ipp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2011 Boris Schaeling (boris@highscore.de) +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_OBJECT_HANDLE_SERVICE_IPP +#define BOOST_ASIO_DETAIL_IMPL_WIN_OBJECT_HANDLE_SERVICE_IPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <boost/asio/detail/config.hpp> + +#if defined(BOOST_ASIO_HAS_WINDOWS_OBJECT_HANDLE) + +#include <boost/asio/detail/win_object_handle_service.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +win_object_handle_service::win_object_handle_service( + boost::asio::io_service& io_service) + : io_service_(boost::asio::use_service<io_service_impl>(io_service)), + mutex_(), + impl_list_(0), + shutdown_(false) +{ +} + +void win_object_handle_service::shutdown_service() +{ + mutex::scoped_lock lock(mutex_); + + // Setting this flag to true prevents new objects from being registered, and + // new asynchronous wait operations from being started. We only need to worry + // about cleaning up the operations that are currently in progress. + shutdown_ = true; + + op_queue<operation> ops; + for (implementation_type* impl = impl_list_; impl; impl = impl->next_) + ops.push(impl->op_queue_); + + lock.unlock(); + + io_service_.abandon_operations(ops); +} + +void win_object_handle_service::construct( + win_object_handle_service::implementation_type& impl) +{ + impl.handle_ = INVALID_HANDLE_VALUE; + impl.wait_handle_ = INVALID_HANDLE_VALUE; + impl.owner_ = this; + + // Insert implementation into linked list of all implementations. + mutex::scoped_lock lock(mutex_); + if (!shutdown_) + { + impl.next_ = impl_list_; + impl.prev_ = 0; + if (impl_list_) + impl_list_->prev_ = &impl; + impl_list_ = &impl; + } +} + +void win_object_handle_service::move_construct( + win_object_handle_service::implementation_type& impl, + win_object_handle_service::implementation_type& other_impl) +{ + mutex::scoped_lock lock(mutex_); + + // Insert implementation into linked list of all implementations. + if (!shutdown_) + { + impl.next_ = impl_list_; + impl.prev_ = 0; + if (impl_list_) + impl_list_->prev_ = &impl; + impl_list_ = &impl; + } + + impl.handle_ = other_impl.handle_; + other_impl.handle_ = INVALID_HANDLE_VALUE; + impl.wait_handle_ = other_impl.wait_handle_; + other_impl.wait_handle_ = INVALID_HANDLE_VALUE; + impl.op_queue_.push(other_impl.op_queue_); + impl.owner_ = this; + + // We must not hold the lock while calling UnregisterWaitEx. This is because + // the registered callback function might be invoked while we are waiting for + // UnregisterWaitEx to complete. + lock.unlock(); + + if (impl.wait_handle_ != INVALID_HANDLE_VALUE) + ::UnregisterWaitEx(impl.wait_handle_, INVALID_HANDLE_VALUE); + + if (!impl.op_queue_.empty()) + register_wait_callback(impl, lock); +} + +void win_object_handle_service::move_assign( + win_object_handle_service::implementation_type& impl, + win_object_handle_service& other_service, + win_object_handle_service::implementation_type& other_impl) +{ + boost::system::error_code ignored_ec; + close(impl, ignored_ec); + + mutex::scoped_lock lock(mutex_); + + if (this != &other_service) + { + // Remove implementation from linked list of all implementations. + if (impl_list_ == &impl) + impl_list_ = impl.next_; + if (impl.prev_) + impl.prev_->next_ = impl.next_; + if (impl.next_) + impl.next_->prev_= impl.prev_; + impl.next_ = 0; + impl.prev_ = 0; + } + + impl.handle_ = other_impl.handle_; + other_impl.handle_ = INVALID_HANDLE_VALUE; + impl.wait_handle_ = other_impl.wait_handle_; + other_impl.wait_handle_ = INVALID_HANDLE_VALUE; + impl.op_queue_.push(other_impl.op_queue_); + impl.owner_ = this; + + if (this != &other_service) + { + // Insert implementation into linked list of all implementations. + impl.next_ = other_service.impl_list_; + impl.prev_ = 0; + if (other_service.impl_list_) + other_service.impl_list_->prev_ = &impl; + other_service.impl_list_ = &impl; + } + + // We must not hold the lock while calling UnregisterWaitEx. This is because + // the registered callback function might be invoked while we are waiting for + // UnregisterWaitEx to complete. + lock.unlock(); + + if (impl.wait_handle_ != INVALID_HANDLE_VALUE) + ::UnregisterWaitEx(impl.wait_handle_, INVALID_HANDLE_VALUE); + + if (!impl.op_queue_.empty()) + register_wait_callback(impl, lock); +} + +void win_object_handle_service::destroy( + win_object_handle_service::implementation_type& impl) +{ + mutex::scoped_lock lock(mutex_); + + // Remove implementation from linked list of all implementations. + if (impl_list_ == &impl) + impl_list_ = impl.next_; + if (impl.prev_) + impl.prev_->next_ = impl.next_; + if (impl.next_) + impl.next_->prev_= impl.prev_; + impl.next_ = 0; + impl.prev_ = 0; + + if (is_open(impl)) + { + BOOST_ASIO_HANDLER_OPERATION(("object_handle", &impl, "close")); + + HANDLE wait_handle = impl.wait_handle_; + impl.wait_handle_ = INVALID_HANDLE_VALUE; + + op_queue<operation> ops; + while (wait_op* op = impl.op_queue_.front()) + { + op->ec_ = boost::asio::error::operation_aborted; + impl.op_queue_.pop(); + ops.push(op); + } + + // We must not hold the lock while calling UnregisterWaitEx. This is + // because the registered callback function might be invoked while we are + // waiting for UnregisterWaitEx to complete. + lock.unlock(); + + if (wait_handle != INVALID_HANDLE_VALUE) + ::UnregisterWaitEx(wait_handle, INVALID_HANDLE_VALUE); + + ::CloseHandle(impl.handle_); + impl.handle_ = INVALID_HANDLE_VALUE; + + io_service_.post_deferred_completions(ops); + } +} + +boost::system::error_code win_object_handle_service::assign( + win_object_handle_service::implementation_type& impl, + const native_handle_type& handle, boost::system::error_code& ec) +{ + if (is_open(impl)) + { + ec = boost::asio::error::already_open; + return ec; + } + + impl.handle_ = handle; + ec = boost::system::error_code(); + return ec; +} + +boost::system::error_code win_object_handle_service::close( + win_object_handle_service::implementation_type& impl, + boost::system::error_code& ec) +{ + if (is_open(impl)) + { + BOOST_ASIO_HANDLER_OPERATION(("object_handle", &impl, "close")); + + mutex::scoped_lock lock(mutex_); + + HANDLE wait_handle = impl.wait_handle_; + impl.wait_handle_ = INVALID_HANDLE_VALUE; + + op_queue<operation> completed_ops; + while (wait_op* op = impl.op_queue_.front()) + { + impl.op_queue_.pop(); + op->ec_ = boost::asio::error::operation_aborted; + completed_ops.push(op); + } + + // We must not hold the lock while calling UnregisterWaitEx. This is + // because the registered callback function might be invoked while we are + // waiting for UnregisterWaitEx to complete. + lock.unlock(); + + if (wait_handle != INVALID_HANDLE_VALUE) + ::UnregisterWaitEx(wait_handle, INVALID_HANDLE_VALUE); + + if (::CloseHandle(impl.handle_)) + { + impl.handle_ = INVALID_HANDLE_VALUE; + ec = boost::system::error_code(); + } + else + { + DWORD last_error = ::GetLastError(); + ec = boost::system::error_code(last_error, + boost::asio::error::get_system_category()); + } + + io_service_.post_deferred_completions(completed_ops); + } + else + { + ec = boost::system::error_code(); + } + + return ec; +} + +boost::system::error_code win_object_handle_service::cancel( + win_object_handle_service::implementation_type& impl, + boost::system::error_code& ec) +{ + if (is_open(impl)) + { + BOOST_ASIO_HANDLER_OPERATION(("object_handle", &impl, "cancel")); + + mutex::scoped_lock lock(mutex_); + + HANDLE wait_handle = impl.wait_handle_; + impl.wait_handle_ = INVALID_HANDLE_VALUE; + + op_queue<operation> completed_ops; + while (wait_op* op = impl.op_queue_.front()) + { + op->ec_ = boost::asio::error::operation_aborted; + impl.op_queue_.pop(); + completed_ops.push(op); + } + + // We must not hold the lock while calling UnregisterWaitEx. This is + // because the registered callback function might be invoked while we are + // waiting for UnregisterWaitEx to complete. + lock.unlock(); + + if (wait_handle != INVALID_HANDLE_VALUE) + ::UnregisterWaitEx(wait_handle, INVALID_HANDLE_VALUE); + + ec = boost::system::error_code(); + + io_service_.post_deferred_completions(completed_ops); + } + else + { + ec = boost::asio::error::bad_descriptor; + } + + return ec; +} + +void win_object_handle_service::wait( + win_object_handle_service::implementation_type& impl, + boost::system::error_code& ec) +{ + switch (::WaitForSingleObject(impl.handle_, INFINITE)) + { + case WAIT_FAILED: + { + DWORD last_error = ::GetLastError(); + ec = boost::system::error_code(last_error, + boost::asio::error::get_system_category()); + break; + } + case WAIT_OBJECT_0: + case WAIT_ABANDONED: + default: + ec = boost::system::error_code(); + break; + } +} + +void win_object_handle_service::start_wait_op( + win_object_handle_service::implementation_type& impl, wait_op* op) +{ + io_service_.work_started(); + + if (is_open(impl)) + { + mutex::scoped_lock lock(mutex_); + + if (!shutdown_) + { + impl.op_queue_.push(op); + + // Only the first operation to be queued gets to register a wait callback. + // Subsequent operations have to wait for the first to finish. + if (impl.op_queue_.front() == op) + register_wait_callback(impl, lock); + } + else + { + lock.unlock(); + io_service_.post_deferred_completion(op); + } + } + else + { + op->ec_ = boost::asio::error::bad_descriptor; + io_service_.post_deferred_completion(op); + } +} + +void win_object_handle_service::register_wait_callback( + win_object_handle_service::implementation_type& impl, + mutex::scoped_lock& lock) +{ + lock.lock(); + + if (!RegisterWaitForSingleObject(&impl.wait_handle_, + impl.handle_, &win_object_handle_service::wait_callback, + &impl, INFINITE, WT_EXECUTEONLYONCE)) + { + DWORD last_error = ::GetLastError(); + boost::system::error_code ec(last_error, + boost::asio::error::get_system_category()); + + op_queue<operation> completed_ops; + while (wait_op* op = impl.op_queue_.front()) + { + op->ec_ = ec; + impl.op_queue_.pop(); + completed_ops.push(op); + } + + lock.unlock(); + io_service_.post_deferred_completions(completed_ops); + } +} + +void win_object_handle_service::wait_callback(PVOID param, BOOLEAN) +{ + implementation_type* impl = static_cast<implementation_type*>(param); + mutex::scoped_lock lock(impl->owner_->mutex_); + + if (impl->wait_handle_ != INVALID_HANDLE_VALUE) + { + ::UnregisterWaitEx(impl->wait_handle_, NULL); + impl->wait_handle_ = INVALID_HANDLE_VALUE; + } + + if (wait_op* op = impl->op_queue_.front()) + { + op_queue<operation> completed_ops; + + op->ec_ = boost::system::error_code(); + impl->op_queue_.pop(); + completed_ops.push(op); + + if (!impl->op_queue_.empty()) + { + if (!RegisterWaitForSingleObject(&impl->wait_handle_, + impl->handle_, &win_object_handle_service::wait_callback, + param, INFINITE, WT_EXECUTEONLYONCE)) + { + DWORD last_error = ::GetLastError(); + boost::system::error_code ec(last_error, + boost::asio::error::get_system_category()); + + while (wait_op* op = impl->op_queue_.front()) + { + op->ec_ = ec; + impl->op_queue_.pop(); + completed_ops.push(op); + } + } + } + + lock.unlock(); + impl->owner_->io_service_.post_deferred_completions(completed_ops); + } +} + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // defined(BOOST_ASIO_HAS_WINDOWS_OBJECT_HANDLE) + +#endif // BOOST_ASIO_DETAIL_IMPL_WIN_OBJECT_HANDLE_SERVICE_IPP diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_static_mutex.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_static_mutex.ipp new file mode 100644 index 0000000..3ec104d --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_static_mutex.ipp @@ -0,0 +1,120 @@ +// +// detail/impl/win_static_mutex.ipp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// + +#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP +#define BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <boost/asio/detail/config.hpp> + +#if defined(BOOST_WINDOWS) + +#include <cstdio> +#include <boost/asio/detail/throw_error.hpp> +#include <boost/asio/detail/win_static_mutex.hpp> +#include <boost/asio/error.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +void win_static_mutex::init() +{ + int error = do_init(); + boost::system::error_code ec(error, + boost::asio::error::get_system_category()); + boost::asio::detail::throw_error(ec, "static_mutex"); +} + +int win_static_mutex::do_init() +{ + using namespace std; // For sprintf. + wchar_t mutex_name[128]; +#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE) + swprintf_s(mutex_name, 128, +#else // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE) + swprintf(mutex_name, +#endif // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE) + L"asio-58CCDC44-6264-4842-90C2-F3C545CB8AA7-%u-%p", + static_cast<unsigned int>(::GetCurrentProcessId()), this); + + HANDLE mutex = ::CreateMutexW(0, TRUE, mutex_name); + DWORD last_error = ::GetLastError(); + if (mutex == 0) + return ::GetLastError(); + + if (last_error == ERROR_ALREADY_EXISTS) + ::WaitForSingleObject(mutex, INFINITE); + + if (initialised_) + { + ::ReleaseMutex(mutex); + ::CloseHandle(mutex); + return 0; + } + +#if defined(__MINGW32__) + // Not sure if MinGW supports structured exception handling, so for now + // we'll just call the Windows API and hope. +# if defined(UNDER_CE) + ::InitializeCriticalSection(&crit_section_); +# else + if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000)) + { + last_error = ::GetLastError(); + ::ReleaseMutex(mutex); + ::CloseHandle(mutex); + return last_error; + } +# endif +#else + __try + { +# if defined(UNDER_CE) + ::InitializeCriticalSection(&crit_section_); +# else + if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000)) + { + last_error = ::GetLastError(); + ::ReleaseMutex(mutex); + ::CloseHandle(mutex); + return last_error; + } +# endif + } + __except(GetExceptionCode() == STATUS_NO_MEMORY + ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH) + { + ::ReleaseMutex(mutex); + ::CloseHandle(mutex); + return ERROR_OUTOFMEMORY; + } +#endif + + initialised_ = true; + ::ReleaseMutex(mutex); + ::CloseHandle(mutex); + return 0; +} + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // defined(BOOST_WINDOWS) + +#endif // BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp index 07cc5c2..744990d 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp @@ -2,7 +2,7 @@ // detail/impl/win_thread.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -102,12 +102,12 @@ void win_thread::start_thread(func_base* arg, unsigned int stack_size) unsigned int __stdcall win_thread_function(void* arg) { - std::auto_ptr<win_thread::func_base> func( - static_cast<win_thread::func_base*>(arg)); + win_thread::auto_func_base_ptr func = { + static_cast<win_thread::func_base*>(arg) }; - ::SetEvent(func->entry_event_); + ::SetEvent(func.ptr->entry_event_); - func->run(); + func.ptr->run(); // Signal that the thread has finished its work, but rather than returning go // to sleep to put the thread into a well known state. If the thread is being @@ -115,8 +115,9 @@ unsigned int __stdcall win_thread_function(void* arg) // TerminateThread (to avoid a deadlock in DllMain). Otherwise, the SleepEx // call will be interrupted using QueueUserAPC and the thread will shut down // cleanly. - HANDLE exit_event = func->exit_event_; - func.reset(); + HANDLE exit_event = func.ptr->exit_event_; + delete func.ptr; + func.ptr = 0; ::SetEvent(exit_event); ::SleepEx(INFINITE, TRUE); diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_tss_ptr.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_tss_ptr.ipp index 02abd55..9da761c 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/win_tss_ptr.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_tss_ptr.ipp @@ -2,7 +2,7 @@ // detail/impl/win_tss_ptr.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/winsock_init.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/winsock_init.ipp index e8fd647..8916934 100644 --- a/3rdParty/Boost/src/boost/asio/detail/impl/winsock_init.ipp +++ b/3rdParty/Boost/src/boost/asio/detail/impl/winsock_init.ipp @@ -2,7 +2,7 @@ // detail/impl/winsock_init.ipp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |