Swiftdiff options
Diffstat (limited to '3rdParty/Boost/src/boost/asio/detail/reactive_socket_service.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/asio/detail/reactive_socket_service.hpp | 1574 |
1 files changed, 110 insertions, 1464 deletions
diff --git a/3rdParty/Boost/src/boost/asio/detail/reactive_socket_service.hpp b/3rdParty/Boost/src/boost/asio/detail/reactive_socket_service.hpp index 5f7bbf5..7288881 100644 --- a/3rdParty/Boost/src/boost/asio/detail/reactive_socket_service.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/reactive_socket_service.hpp @@ -1,6 +1,6 @@ // -// reactive_socket_service.hpp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// detail/reactive_socket_service.hpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com) // @@ -15,29 +15,38 @@ # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) -#include <boost/asio/detail/push_options.hpp> +#include <boost/asio/detail/config.hpp> + +#if !defined(BOOST_ASIO_HAS_IOCP) +#include <boost/utility/addressof.hpp> #include <boost/asio/buffer.hpp> #include <boost/asio/error.hpp> #include <boost/asio/io_service.hpp> #include <boost/asio/socket_base.hpp> -#include <boost/asio/detail/bind_handler.hpp> #include <boost/asio/detail/buffer_sequence_adapter.hpp> -#include <boost/asio/detail/fenced_block.hpp> #include <boost/asio/detail/noncopyable.hpp> -#include <boost/asio/detail/null_buffers_op.hpp> +#include <boost/asio/detail/reactive_null_buffers_op.hpp> +#include <boost/asio/detail/reactive_socket_accept_op.hpp> +#include <boost/asio/detail/reactive_socket_connect_op.hpp> +#include <boost/asio/detail/reactive_socket_recvfrom_op.hpp> +#include <boost/asio/detail/reactive_socket_sendto_op.hpp> +#include <boost/asio/detail/reactive_socket_service_base.hpp> #include <boost/asio/detail/reactor.hpp> #include <boost/asio/detail/reactor_op.hpp> #include <boost/asio/detail/socket_holder.hpp> #include <boost/asio/detail/socket_ops.hpp> #include <boost/asio/detail/socket_types.hpp> +#include <boost/asio/detail/push_options.hpp> + namespace boost { namespace asio { namespace detail { template <typename Protocol> -class reactive_socket_service +class reactive_socket_service : + public reactive_socket_service_base { public: // The protocol type. @@ -50,132 +59,32 @@ public: typedef socket_type native_type; // The implementation type of the socket. - class implementation_type - : private boost::asio::detail::noncopyable + struct implementation_type : + reactive_socket_service_base::base_implementation_type { - public: // Default constructor. implementation_type() - : socket_(invalid_socket), - flags_(0), - protocol_(endpoint_type().protocol()) + : protocol_(endpoint_type().protocol()) { } - private: - // Only this service will have access to the internal values. - friend class reactive_socket_service<Protocol>; - - // The native socket representation. - socket_type socket_; - - enum - { - // The user wants a non-blocking socket. - user_set_non_blocking = 1, - - // The implementation wants a non-blocking socket (in order to be able to - // perform asynchronous read and write operations). - internal_non_blocking = 2, - - // Helper "flag" used to determine whether the socket is non-blocking. - non_blocking = user_set_non_blocking | internal_non_blocking, - - // User wants connection_aborted errors, which are disabled by default. - enable_connection_aborted = 4, - - // The user set the linger option. Needs to be checked when closing. - user_set_linger = 8 - }; - - // Flags indicating the current state of the socket. - unsigned char flags_; - // The protocol associated with the socket. protocol_type protocol_; - - // Per-descriptor data used by the reactor. - reactor::per_descriptor_data reactor_data_; }; // Constructor. reactive_socket_service(boost::asio::io_service& io_service) - : io_service_impl_(use_service<io_service_impl>(io_service)), - reactor_(use_service<reactor>(io_service)) - { - reactor_.init_task(); - } - - // Destroy all user-defined handler objects owned by the service. - void shutdown_service() - { - } - - // Construct a new socket implementation. - void construct(implementation_type& impl) + : reactive_socket_service_base(io_service) { - impl.socket_ = invalid_socket; - impl.flags_ = 0; - } - - // Destroy a socket implementation. - void destroy(implementation_type& impl) - { - if (impl.socket_ != invalid_socket) - { - reactor_.close_descriptor(impl.socket_, impl.reactor_data_); - - if (impl.flags_ & implementation_type::non_blocking) - { - ioctl_arg_type non_blocking = 0; - boost::system::error_code ignored_ec; - socket_ops::ioctl(impl.socket_, FIONBIO, &non_blocking, ignored_ec); - impl.flags_ &= ~implementation_type::non_blocking; - } - - if (impl.flags_ & implementation_type::user_set_linger) - { - ::linger opt; - opt.l_onoff = 0; - opt.l_linger = 0; - boost::system::error_code ignored_ec; - socket_ops::setsockopt(impl.socket_, - SOL_SOCKET, SO_LINGER, &opt, sizeof(opt), ignored_ec); - } - - boost::system::error_code ignored_ec; - socket_ops::close(impl.socket_, ignored_ec); - - impl.socket_ = invalid_socket; - } } // Open a new socket implementation. boost::system::error_code open(implementation_type& impl, const protocol_type& protocol, boost::system::error_code& ec) { - if (is_open(impl)) - { - ec = boost::asio::error::already_open; - return ec; - } - - socket_holder sock(socket_ops::socket(protocol.family(), - protocol.type(), protocol.protocol(), ec)); - if (sock.get() == invalid_socket) - return ec; - - if (int err = reactor_.register_descriptor(sock.get(), impl.reactor_data_)) - { - ec = boost::system::error_code(err, - boost::asio::error::get_system_category()); - return ec; - } - - impl.socket_ = sock.release(); - impl.flags_ = 0; - impl.protocol_ = protocol; - ec = boost::system::error_code(); + if (!do_open(impl, protocol.family(), + protocol.type(), protocol.protocol(), ec)) + impl.protocol_ = protocol; return ec; } @@ -184,56 +93,8 @@ public: const protocol_type& protocol, const native_type& native_socket, boost::system::error_code& ec) { - if (is_open(impl)) - { - ec = boost::asio::error::already_open; - return ec; - } - - if (int err = reactor_.register_descriptor( - native_socket, impl.reactor_data_)) - { - ec = boost::system::error_code(err, - boost::asio::error::get_system_category()); - return ec; - } - - impl.socket_ = native_socket; - impl.flags_ = 0; - impl.protocol_ = protocol; - ec = boost::system::error_code(); - return ec; - } - - // Determine whether the socket is open. - bool is_open(const implementation_type& impl) const - { - return impl.socket_ != invalid_socket; - } - - // Destroy a socket implementation. - boost::system::error_code close(implementation_type& impl, - boost::system::error_code& ec) - { - if (is_open(impl)) - { - reactor_.close_descriptor(impl.socket_, impl.reactor_data_); - - if (impl.flags_ & implementation_type::non_blocking) - { - ioctl_arg_type non_blocking = 0; - boost::system::error_code ignored_ec; - socket_ops::ioctl(impl.socket_, FIONBIO, &non_blocking, ignored_ec); - impl.flags_ &= ~implementation_type::non_blocking; - } - - if (socket_ops::close(impl.socket_, ec) == socket_error_retval) - return ec; - - impl.socket_ = invalid_socket; - } - - ec = boost::system::error_code(); + if (!do_assign(impl, protocol.type(), native_socket, ec)) + impl.protocol_ = protocol; return ec; } @@ -243,153 +104,23 @@ public: return impl.socket_; } - // Cancel all operations associated with the socket. - boost::system::error_code cancel(implementation_type& impl, - boost::system::error_code& ec) - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - - reactor_.cancel_ops(impl.socket_, impl.reactor_data_); - ec = boost::system::error_code(); - return ec; - } - - // Determine whether the socket is at the out-of-band data mark. - bool at_mark(const implementation_type& impl, - boost::system::error_code& ec) const - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return false; - } - -#if defined(SIOCATMARK) - boost::asio::detail::ioctl_arg_type value = 0; - socket_ops::ioctl(impl.socket_, SIOCATMARK, &value, ec); -# if defined(ENOTTY) - if (ec.value() == ENOTTY) - ec = boost::asio::error::not_socket; -# endif // defined(ENOTTY) -#else // defined(SIOCATMARK) - int value = sockatmark(impl.socket_); - if (value == -1) - ec = boost::system::error_code(errno, - boost::asio::error::get_system_category()); - else - ec = boost::system::error_code(); -#endif // defined(SIOCATMARK) - return ec ? false : value != 0; - } - - // Determine the number of bytes available for reading. - std::size_t available(const implementation_type& impl, - boost::system::error_code& ec) const - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - - boost::asio::detail::ioctl_arg_type value = 0; - socket_ops::ioctl(impl.socket_, FIONREAD, &value, ec); -#if defined(ENOTTY) - if (ec.value() == ENOTTY) - ec = boost::asio::error::not_socket; -#endif // defined(ENOTTY) - return ec ? static_cast<std::size_t>(0) : static_cast<std::size_t>(value); - } - // Bind the socket to the specified local endpoint. boost::system::error_code bind(implementation_type& impl, const endpoint_type& endpoint, boost::system::error_code& ec) { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - socket_ops::bind(impl.socket_, endpoint.data(), endpoint.size(), ec); return ec; } - // Place the socket into the state where it will listen for new connections. - boost::system::error_code listen(implementation_type& impl, int backlog, - boost::system::error_code& ec) - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - - socket_ops::listen(impl.socket_, backlog, ec); - return ec; - } - // Set a socket option. template <typename Option> boost::system::error_code set_option(implementation_type& impl, const Option& option, boost::system::error_code& ec) { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - - if (option.level(impl.protocol_) == custom_socket_option_level - && option.name(impl.protocol_) == enable_connection_aborted_option) - { - if (option.size(impl.protocol_) != sizeof(int)) - { - ec = boost::asio::error::invalid_argument; - } - else - { - if (*reinterpret_cast<const int*>(option.data(impl.protocol_))) - impl.flags_ |= implementation_type::enable_connection_aborted; - else - impl.flags_ &= ~implementation_type::enable_connection_aborted; - ec = boost::system::error_code(); - } - return ec; - } - else - { - if (option.level(impl.protocol_) == SOL_SOCKET - && option.name(impl.protocol_) == SO_LINGER) - { - impl.flags_ |= implementation_type::user_set_linger; - } - - socket_ops::setsockopt(impl.socket_, - option.level(impl.protocol_), option.name(impl.protocol_), - option.data(impl.protocol_), option.size(impl.protocol_), ec); - -#if defined(__MACH__) && defined(__APPLE__) \ -|| defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) - // To implement portable behaviour for SO_REUSEADDR with UDP sockets we - // need to also set SO_REUSEPORT on BSD-based platforms. - if (!ec && impl.protocol_.type() == SOCK_DGRAM - && option.level(impl.protocol_) == SOL_SOCKET - && option.name(impl.protocol_) == SO_REUSEADDR) - { - boost::system::error_code ignored_ec; - socket_ops::setsockopt(impl.socket_, SOL_SOCKET, SO_REUSEPORT, - option.data(impl.protocol_), option.size(impl.protocol_), - ignored_ec); - } -#endif - - return ec; - } + socket_ops::setsockopt(impl.socket_, impl.state_, + option.level(impl.protocol_), option.name(impl.protocol_), + option.data(impl.protocol_), option.size(impl.protocol_), ec); + return ec; } // Set a socket option. @@ -397,78 +128,12 @@ public: boost::system::error_code get_option(const implementation_type& impl, Option& option, boost::system::error_code& ec) const { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - - if (option.level(impl.protocol_) == custom_socket_option_level - && option.name(impl.protocol_) == enable_connection_aborted_option) - { - if (option.size(impl.protocol_) != sizeof(int)) - { - ec = boost::asio::error::invalid_argument; - } - else - { - int* target = reinterpret_cast<int*>(option.data(impl.protocol_)); - if (impl.flags_ & implementation_type::enable_connection_aborted) - *target = 1; - else - *target = 0; - option.resize(impl.protocol_, sizeof(int)); - ec = boost::system::error_code(); - } - return ec; - } - else - { - size_t size = option.size(impl.protocol_); - socket_ops::getsockopt(impl.socket_, - option.level(impl.protocol_), option.name(impl.protocol_), - option.data(impl.protocol_), &size, ec); - if (!ec) - option.resize(impl.protocol_, size); - return ec; - } - } - - // Perform an IO control command on the socket. - template <typename IO_Control_Command> - boost::system::error_code io_control(implementation_type& impl, - IO_Control_Command& command, boost::system::error_code& ec) - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - - socket_ops::ioctl(impl.socket_, command.name(), - static_cast<ioctl_arg_type*>(command.data()), ec); - - // When updating the non-blocking mode we always perform the ioctl - // syscall, even if the flags would otherwise indicate that the socket is - // already in the correct state. This ensures that the underlying socket - // is put into the state that has been requested by the user. If the ioctl - // syscall was successful then we need to update the flags to match. - if (!ec && command.name() == static_cast<int>(FIONBIO)) - { - if (*static_cast<ioctl_arg_type*>(command.data())) - { - impl.flags_ |= implementation_type::user_set_non_blocking; - } - else - { - // Clearing the non-blocking mode always overrides any internally-set - // non-blocking flag. Any subsequent asynchronous operations will need - // to re-enable non-blocking I/O. - impl.flags_ &= ~(implementation_type::user_set_non_blocking - | implementation_type::internal_non_blocking); - } - } - + std::size_t size = option.size(impl.protocol_); + socket_ops::getsockopt(impl.socket_, impl.state_, + option.level(impl.protocol_), option.name(impl.protocol_), + option.data(impl.protocol_), &size, ec); + if (!ec) + option.resize(impl.protocol_, size); return ec; } @@ -476,12 +141,6 @@ public: endpoint_type local_endpoint(const implementation_type& impl, boost::system::error_code& ec) const { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return endpoint_type(); - } - endpoint_type endpoint; std::size_t addr_len = endpoint.capacity(); if (socket_ops::getsockname(impl.socket_, endpoint.data(), &addr_len, ec)) @@ -494,218 +153,15 @@ public: endpoint_type remote_endpoint(const implementation_type& impl, boost::system::error_code& ec) const { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return endpoint_type(); - } - endpoint_type endpoint; std::size_t addr_len = endpoint.capacity(); - if (socket_ops::getpeername(impl.socket_, endpoint.data(), &addr_len, ec)) + if (socket_ops::getpeername(impl.socket_, + endpoint.data(), &addr_len, false, ec)) return endpoint_type(); endpoint.resize(addr_len); return endpoint; } - /// Disable sends or receives on the socket. - boost::system::error_code shutdown(implementation_type& impl, - socket_base::shutdown_type what, boost::system::error_code& ec) - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - - socket_ops::shutdown(impl.socket_, what, ec); - return ec; - } - - // Send the given data to the peer. - template <typename ConstBufferSequence> - size_t send(implementation_type& impl, const ConstBufferSequence& buffers, - socket_base::message_flags flags, boost::system::error_code& ec) - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - - buffer_sequence_adapter<boost::asio::const_buffer, - ConstBufferSequence> bufs(buffers); - - // A request to receive 0 bytes on a stream socket is a no-op. - if (impl.protocol_.type() == SOCK_STREAM && bufs.all_empty()) - { - ec = boost::system::error_code(); - return 0; - } - - // Send the data. - for (;;) - { - // Try to complete the operation without blocking. - int bytes_sent = socket_ops::send(impl.socket_, - bufs.buffers(), bufs.count(), flags, ec); - - // Check if operation succeeded. - if (bytes_sent >= 0) - return bytes_sent; - - // Operation failed. - if ((impl.flags_ & implementation_type::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_write(impl.socket_, ec) < 0) - return 0; - } - } - - // Wait until data can be sent without blocking. - size_t send(implementation_type& impl, const null_buffers&, - socket_base::message_flags, boost::system::error_code& ec) - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - - // Wait for socket to become ready. - socket_ops::poll_write(impl.socket_, ec); - - return 0; - } - - template <typename ConstBufferSequence> - class send_op_base : public reactor_op - { - public: - send_op_base(socket_type socket, const ConstBufferSequence& buffers, - socket_base::message_flags flags, func_type complete_func) - : reactor_op(&send_op_base::do_perform, complete_func), - socket_(socket), - buffers_(buffers), - flags_(flags) - { - } - - static bool do_perform(reactor_op* base) - { - send_op_base* o(static_cast<send_op_base*>(base)); - - buffer_sequence_adapter<boost::asio::const_buffer, - ConstBufferSequence> bufs(o->buffers_); - - for (;;) - { - // Send the data. - boost::system::error_code ec; - int bytes = socket_ops::send(o->socket_, - bufs.buffers(), bufs.count(), o->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; - - o->ec_ = ec; - o->bytes_transferred_ = (bytes < 0 ? 0 : bytes); - return true; - } - } - - private: - socket_type socket_; - ConstBufferSequence buffers_; - socket_base::message_flags flags_; - }; - - template <typename ConstBufferSequence, typename Handler> - class send_op : public send_op_base<ConstBufferSequence> - { - public: - send_op(socket_type socket, const ConstBufferSequence& buffers, - socket_base::message_flags flags, Handler handler) - : send_op_base<ConstBufferSequence>(socket, - buffers, flags, &send_op::do_complete), - handler_(handler) - { - } - - static void do_complete(io_service_impl* owner, operation* base, - boost::system::error_code /*ec*/, std::size_t /*bytes_transferred*/) - { - // Take ownership of the handler object. - send_op* o(static_cast<send_op*>(base)); - typedef handler_alloc_traits<Handler, send_op> alloc_traits; - handler_ptr<alloc_traits> ptr(o->handler_, o); - - // Make the upcall if required. - if (owner) - { - // Make a copy of the handler so that the memory can be deallocated - // before the upcall is made. Even if we're not about to make an - // upcall, a sub-object of the handler may be the true owner of the - // memory associated with the handler. Consequently, a local copy of - // the handler is required to ensure that any owning sub-object remains - // valid until after we have deallocated the memory here. - detail::binder2<Handler, boost::system::error_code, std::size_t> - handler(o->handler_, o->ec_, o->bytes_transferred_); - ptr.reset(); - boost::asio::detail::fenced_block b; - boost_asio_handler_invoke_helpers::invoke(handler, handler); - } - } - - private: - Handler handler_; - }; - - // Start an asynchronous send. The data being sent must be valid for the - // lifetime of the asynchronous operation. - template <typename ConstBufferSequence, typename Handler> - void async_send(implementation_type& impl, const ConstBufferSequence& buffers, - socket_base::message_flags flags, Handler handler) - { - // Allocate and construct an operation to wrap the handler. - typedef send_op<ConstBufferSequence, Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - handler_ptr<alloc_traits> ptr(raw_ptr, - impl.socket_, buffers, flags, handler); - - start_op(impl, reactor::write_op, ptr.get(), true, - (impl.protocol_.type() == SOCK_STREAM - && buffer_sequence_adapter<boost::asio::const_buffer, - ConstBufferSequence>::all_empty(buffers))); - ptr.release(); - } - - // Start an asynchronous wait until data can be sent without blocking. - template <typename Handler> - void async_send(implementation_type& impl, const null_buffers&, - socket_base::message_flags, Handler handler) - { - // Allocate and construct an operation to wrap the handler. - typedef null_buffers_op<Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - handler_ptr<alloc_traits> ptr(raw_ptr, handler); - - start_op(impl, reactor::write_op, ptr.get(), false, false); - ptr.release(); - } - // Send a datagram to the specified endpoint. Returns the number of bytes // sent. template <typename ConstBufferSequence> @@ -713,148 +169,25 @@ public: const endpoint_type& destination, socket_base::message_flags flags, boost::system::error_code& ec) { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - buffer_sequence_adapter<boost::asio::const_buffer, ConstBufferSequence> bufs(buffers); - // Send the data. - for (;;) - { - // Try to complete the operation without blocking. - int bytes_sent = socket_ops::sendto(impl.socket_, bufs.buffers(), - bufs.count(), flags, destination.data(), destination.size(), ec); - - // Check if operation succeeded. - if (bytes_sent >= 0) - return bytes_sent; - - // Operation failed. - if ((impl.flags_ & implementation_type::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_write(impl.socket_, ec) < 0) - return 0; - } + return socket_ops::sync_sendto(impl.socket_, impl.state_, + bufs.buffers(), bufs.count(), flags, + destination.data(), destination.size(), ec); } // Wait until data can be sent without blocking. size_t send_to(implementation_type& impl, const null_buffers&, - socket_base::message_flags, const endpoint_type&, + const endpoint_type&, socket_base::message_flags, boost::system::error_code& ec) { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - // Wait for socket to become ready. socket_ops::poll_write(impl.socket_, ec); return 0; } - template <typename ConstBufferSequence> - class send_to_op_base : public reactor_op - { - public: - send_to_op_base(socket_type socket, const ConstBufferSequence& buffers, - const endpoint_type& endpoint, socket_base::message_flags flags, - func_type complete_func) - : reactor_op(&send_to_op_base::do_perform, complete_func), - socket_(socket), - buffers_(buffers), - destination_(endpoint), - flags_(flags) - { - } - - static bool do_perform(reactor_op* base) - { - send_to_op_base* o(static_cast<send_to_op_base*>(base)); - - buffer_sequence_adapter<boost::asio::const_buffer, - ConstBufferSequence> bufs(o->buffers_); - - for (;;) - { - // Send the data. - boost::system::error_code ec; - int bytes = socket_ops::sendto(o->socket_, bufs.buffers(), bufs.count(), - o->flags_, o->destination_.data(), o->destination_.size(), 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; - - o->ec_ = ec; - o->bytes_transferred_ = (bytes < 0 ? 0 : bytes); - return true; - } - } - - private: - socket_type socket_; - ConstBufferSequence buffers_; - endpoint_type destination_; - socket_base::message_flags flags_; - }; - - template <typename ConstBufferSequence, typename Handler> - class send_to_op : public send_to_op_base<ConstBufferSequence> - { - public: - send_to_op(socket_type socket, const ConstBufferSequence& buffers, - const endpoint_type& endpoint, socket_base::message_flags flags, - Handler handler) - : send_to_op_base<ConstBufferSequence>(socket, - buffers, endpoint, flags, &send_to_op::do_complete), - handler_(handler) - { - } - - static void do_complete(io_service_impl* owner, operation* base, - boost::system::error_code /*ec*/, std::size_t /*bytes_transferred*/) - { - // Take ownership of the handler object. - send_to_op* o(static_cast<send_to_op*>(base)); - typedef handler_alloc_traits<Handler, send_to_op> alloc_traits; - handler_ptr<alloc_traits> ptr(o->handler_, o); - - // Make the upcall if required. - if (owner) - { - // Make a copy of the handler so that the memory can be deallocated - // before the upcall is made. Even if we're not about to make an - // upcall, a sub-object of the handler may be the true owner of the - // memory associated with the handler. Consequently, a local copy of - // the handler is required to ensure that any owning sub-object remains - // valid until after we have deallocated the memory here. - detail::binder2<Handler, boost::system::error_code, std::size_t> - handler(o->handler_, o->ec_, o->bytes_transferred_); - ptr.reset(); - boost::asio::detail::fenced_block b; - boost_asio_handler_invoke_helpers::invoke(handler, handler); - } - } - - private: - Handler handler_; - }; - // Start an asynchronous send. The data being sent must be valid for the // lifetime of the asynchronous operation. template <typename ConstBufferSequence, typename Handler> @@ -864,235 +197,31 @@ public: Handler handler) { // Allocate and construct an operation to wrap the handler. - typedef send_to_op<ConstBufferSequence, Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - handler_ptr<alloc_traits> ptr(raw_ptr, impl.socket_, - buffers, destination, flags, handler); + typedef reactive_socket_sendto_op<ConstBufferSequence, + endpoint_type, 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(impl.socket_, buffers, destination, flags, handler); - start_op(impl, reactor::write_op, ptr.get(), true, false); - ptr.release(); + start_op(impl, reactor::write_op, p.p, true, false); + p.v = p.p = 0; } // Start an asynchronous wait until data can be sent without blocking. template <typename Handler> void async_send_to(implementation_type& impl, const null_buffers&, - socket_base::message_flags, const endpoint_type&, Handler handler) + const endpoint_type&, socket_base::message_flags, Handler handler) { // Allocate and construct an operation to wrap the handler. - typedef null_buffers_op<Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - handler_ptr<alloc_traits> ptr(raw_ptr, handler); - - start_op(impl, reactor::write_op, ptr.get(), false, false); - ptr.release(); - } - - // Receive some data from the peer. Returns the number of bytes received. - template <typename MutableBufferSequence> - size_t receive(implementation_type& impl, - const MutableBufferSequence& buffers, - socket_base::message_flags flags, boost::system::error_code& ec) - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - - buffer_sequence_adapter<boost::asio::mutable_buffer, - MutableBufferSequence> bufs(buffers); - - // A request to receive 0 bytes on a stream socket is a no-op. - if (impl.protocol_.type() == SOCK_STREAM && bufs.all_empty()) - { - ec = boost::system::error_code(); - return 0; - } - - // Receive some data. - for (;;) - { - // Try to complete the operation without blocking. - int bytes_recvd = socket_ops::recv(impl.socket_, - bufs.buffers(), bufs.count(), flags, ec); - - // Check if operation succeeded. - if (bytes_recvd > 0) - return bytes_recvd; - - // Check for EOF. - if (bytes_recvd == 0 && impl.protocol_.type() == SOCK_STREAM) - { - ec = boost::asio::error::eof; - return 0; - } - - // Operation failed. - if ((impl.flags_ & implementation_type::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(impl.socket_, ec) < 0) - return 0; - } - } - - // Wait until data can be received without blocking. - size_t receive(implementation_type& impl, const null_buffers&, - socket_base::message_flags, boost::system::error_code& ec) - { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - - // Wait for socket to become ready. - socket_ops::poll_read(impl.socket_, ec); + typedef reactive_null_buffers_op<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); - return 0; - } - - template <typename MutableBufferSequence> - class receive_op_base : public reactor_op - { - public: - receive_op_base(socket_type socket, int protocol_type, - const MutableBufferSequence& buffers, - socket_base::message_flags flags, func_type complete_func) - : reactor_op(&receive_op_base::do_perform, complete_func), - socket_(socket), - protocol_type_(protocol_type), - buffers_(buffers), - flags_(flags) - { - } - - static bool do_perform(reactor_op* base) - { - receive_op_base* o(static_cast<receive_op_base*>(base)); - - buffer_sequence_adapter<boost::asio::mutable_buffer, - MutableBufferSequence> bufs(o->buffers_); - - for (;;) - { - // Receive some data. - boost::system::error_code ec; - int bytes = socket_ops::recv(o->socket_, - bufs.buffers(), bufs.count(), o->flags_, ec); - if (bytes == 0 && o->protocol_type_ == SOCK_STREAM) - ec = boost::asio::error::eof; - - // 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; - - o->ec_ = ec; - o->bytes_transferred_ = (bytes < 0 ? 0 : bytes); - return true; - } - } - - private: - socket_type socket_; - int protocol_type_; - MutableBufferSequence buffers_; - socket_base::message_flags flags_; - }; - - template <typename MutableBufferSequence, typename Handler> - class receive_op : public receive_op_base<MutableBufferSequence> - { - public: - receive_op(socket_type socket, int protocol_type, - const MutableBufferSequence& buffers, - socket_base::message_flags flags, Handler handler) - : receive_op_base<MutableBufferSequence>(socket, - protocol_type, buffers, flags, &receive_op::do_complete), - handler_(handler) - { - } - - static void do_complete(io_service_impl* owner, operation* base, - boost::system::error_code /*ec*/, std::size_t /*bytes_transferred*/) - { - // Take ownership of the handler object. - receive_op* o(static_cast<receive_op*>(base)); - typedef handler_alloc_traits<Handler, receive_op> alloc_traits; - handler_ptr<alloc_traits> ptr(o->handler_, o); - - // Make the upcall if required. - if (owner) - { - // Make a copy of the handler so that the memory can be deallocated - // before the upcall is made. Even if we're not about to make an - // upcall, a sub-object of the handler may be the true owner of the - // memory associated with the handler. Consequently, a local copy of - // the handler is required to ensure that any owning sub-object remains - // valid until after we have deallocated the memory here. - detail::binder2<Handler, boost::system::error_code, std::size_t> - handler(o->handler_, o->ec_, o->bytes_transferred_); - ptr.reset(); - boost::asio::detail::fenced_block b; - boost_asio_handler_invoke_helpers::invoke(handler, handler); - } - } - - private: - Handler handler_; - }; - - // Start an asynchronous receive. The buffer for the data being received - // must be valid for the lifetime of the asynchronous operation. - template <typename MutableBufferSequence, typename Handler> - void async_receive(implementation_type& impl, - const MutableBufferSequence& buffers, - socket_base::message_flags flags, Handler handler) - { - // Allocate and construct an operation to wrap the handler. - typedef receive_op<MutableBufferSequence, Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - int protocol_type = impl.protocol_.type(); - handler_ptr<alloc_traits> ptr(raw_ptr, impl.socket_, - protocol_type, buffers, flags, handler); - - start_op(impl, - (flags & socket_base::message_out_of_band) - ? reactor::except_op : reactor::read_op, - ptr.get(), (flags & socket_base::message_out_of_band) == 0, - (impl.protocol_.type() == SOCK_STREAM - && buffer_sequence_adapter<boost::asio::mutable_buffer, - MutableBufferSequence>::all_empty(buffers))); - ptr.release(); - } - - // Wait until data can be received without blocking. - template <typename Handler> - void async_receive(implementation_type& impl, const null_buffers&, - socket_base::message_flags flags, Handler handler) - { - // Allocate and construct an operation to wrap the handler. - typedef null_buffers_op<Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - handler_ptr<alloc_traits> ptr(raw_ptr, handler); - - start_op(impl, - (flags & socket_base::message_out_of_band) - ? reactor::except_op : reactor::read_op, - ptr.get(), false, false); - ptr.release(); + start_op(impl, reactor::write_op, p.p, false, false); + p.v = p.p = 0; } // Receive a datagram with the endpoint of the sender. Returns the number of @@ -1103,47 +232,18 @@ public: endpoint_type& sender_endpoint, socket_base::message_flags flags, boost::system::error_code& ec) { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - buffer_sequence_adapter<boost::asio::mutable_buffer, MutableBufferSequence> bufs(buffers); - // Receive some data. - for (;;) - { - // Try to complete the operation without blocking. - std::size_t addr_len = sender_endpoint.capacity(); - int bytes_recvd = socket_ops::recvfrom(impl.socket_, bufs.buffers(), - bufs.count(), flags, sender_endpoint.data(), &addr_len, ec); + std::size_t addr_len = sender_endpoint.capacity(); + std::size_t bytes_recvd = socket_ops::sync_recvfrom( + impl.socket_, impl.state_, bufs.buffers(), bufs.count(), + flags, sender_endpoint.data(), &addr_len, ec); - // Check if operation succeeded. - if (bytes_recvd > 0) - { - sender_endpoint.resize(addr_len); - return bytes_recvd; - } + if (!ec) + sender_endpoint.resize(addr_len); - // Check for EOF. - if (bytes_recvd == 0 && impl.protocol_.type() == SOCK_STREAM) - { - ec = boost::asio::error::eof; - return 0; - } - - // Operation failed. - if ((impl.flags_ & implementation_type::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(impl.socket_, ec) < 0) - return 0; - } + return bytes_recvd; } // Wait until data can be received without blocking. @@ -1151,12 +251,6 @@ public: endpoint_type& sender_endpoint, socket_base::message_flags, boost::system::error_code& ec) { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return 0; - } - // Wait for socket to become ready. socket_ops::poll_read(impl.socket_, ec); @@ -1166,105 +260,6 @@ public: return 0; } - template <typename MutableBufferSequence> - class receive_from_op_base : public reactor_op - { - public: - receive_from_op_base(socket_type socket, int protocol_type, - const MutableBufferSequence& buffers, endpoint_type& endpoint, - socket_base::message_flags flags, func_type complete_func) - : reactor_op(&receive_from_op_base::do_perform, complete_func), - socket_(socket), - protocol_type_(protocol_type), - buffers_(buffers), - sender_endpoint_(endpoint), - flags_(flags) - { - } - - static bool do_perform(reactor_op* base) - { - receive_from_op_base* o(static_cast<receive_from_op_base*>(base)); - - buffer_sequence_adapter<boost::asio::mutable_buffer, - MutableBufferSequence> bufs(o->buffers_); - - for (;;) - { - // Receive some data. - boost::system::error_code ec; - std::size_t addr_len = o->sender_endpoint_.capacity(); - int bytes = socket_ops::recvfrom(o->socket_, bufs.buffers(), - bufs.count(), o->flags_, o->sender_endpoint_.data(), &addr_len, ec); - if (bytes == 0 && o->protocol_type_ == SOCK_STREAM) - ec = boost::asio::error::eof; - - // 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; - - o->sender_endpoint_.resize(addr_len); - o->ec_ = ec; - o->bytes_transferred_ = (bytes < 0 ? 0 : bytes); - return true; - } - } - - private: - socket_type socket_; - int protocol_type_; - MutableBufferSequence buffers_; - endpoint_type& sender_endpoint_; - socket_base::message_flags flags_; - }; - - template <typename MutableBufferSequence, typename Handler> - class receive_from_op : public receive_from_op_base<MutableBufferSequence> - { - public: - receive_from_op(socket_type socket, int protocol_type, - const MutableBufferSequence& buffers, endpoint_type& endpoint, - socket_base::message_flags flags, Handler handler) - : receive_from_op_base<MutableBufferSequence>(socket, protocol_type, - buffers, endpoint, flags, &receive_from_op::do_complete), - handler_(handler) - { - } - - static void do_complete(io_service_impl* owner, operation* base, - boost::system::error_code /*ec*/, std::size_t /*bytes_transferred*/) - { - // Take ownership of the handler object. - receive_from_op* o(static_cast<receive_from_op*>(base)); - typedef handler_alloc_traits<Handler, receive_from_op> alloc_traits; - handler_ptr<alloc_traits> ptr(o->handler_, o); - - // Make the upcall if required. - if (owner) - { - // Make a copy of the handler so that the memory can be deallocated - // before the upcall is made. Even if we're not about to make an - // upcall, a sub-object of the handler may be the true owner of the - // memory associated with the handler. Consequently, a local copy of - // the handler is required to ensure that any owning sub-object remains - // valid until after we have deallocated the memory here. - detail::binder2<Handler, boost::system::error_code, std::size_t> - handler(o->handler_, o->ec_, o->bytes_transferred_); - ptr.reset(); - boost::asio::detail::fenced_block b; - boost_asio_handler_invoke_helpers::invoke(handler, handler); - } - } - - private: - Handler handler_; - }; - // Start an asynchronous receive. The buffer for the data being received and // the sender_endpoint object must both be valid for the lifetime of the // asynchronous operation. @@ -1274,18 +269,20 @@ public: socket_base::message_flags flags, Handler handler) { // Allocate and construct an operation to wrap the handler. - typedef receive_from_op<MutableBufferSequence, Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); + typedef reactive_socket_recvfrom_op<MutableBufferSequence, + endpoint_type, Handler> op; + typename op::ptr p = { boost::addressof(handler), + boost_asio_handler_alloc_helpers::allocate( + sizeof(op), handler), 0 }; int protocol_type = impl.protocol_.type(); - handler_ptr<alloc_traits> ptr(raw_ptr, impl.socket_, - protocol_type, buffers, sender_endpoint, flags, handler); + p.p = new (p.v) op(impl.socket_, protocol_type, + buffers, sender_endpoint, flags, handler); start_op(impl, (flags & socket_base::message_out_of_band) ? reactor::except_op : reactor::read_op, - ptr.get(), true, false); - ptr.release(); + p.p, true, false); + p.v = p.p = 0; } // Wait until data can be received without blocking. @@ -1295,10 +292,11 @@ public: socket_base::message_flags flags, Handler handler) { // Allocate and construct an operation to wrap the handler. - typedef null_buffers_op<Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - handler_ptr<alloc_traits> ptr(raw_ptr, handler); + typedef reactive_null_buffers_op<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); // Reset endpoint since it can be given no sensible value at this time. sender_endpoint = endpoint_type(); @@ -1306,8 +304,8 @@ public: start_op(impl, (flags & socket_base::message_out_of_band) ? reactor::except_op : reactor::read_op, - ptr.get(), false, false); - ptr.release(); + p.p, false, false); + p.v = p.p = 0; } // Accept a new connection. @@ -1315,12 +313,6 @@ public: boost::system::error_code accept(implementation_type& impl, Socket& peer, endpoint_type* peer_endpoint, boost::system::error_code& ec) { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - // We cannot accept a socket that is already open. if (peer.is_open()) { @@ -1328,181 +320,22 @@ public: return ec; } - // Accept a socket. - for (;;) - { - // Try to complete the operation without blocking. - socket_holder new_socket; - std::size_t addr_len = 0; - if (peer_endpoint) - { - addr_len = peer_endpoint->capacity(); - new_socket.reset(socket_ops::accept(impl.socket_, - peer_endpoint->data(), &addr_len, ec)); - } - else - { - new_socket.reset(socket_ops::accept(impl.socket_, 0, 0, ec)); - } - - // Check if operation succeeded. - if (new_socket.get() >= 0) - { - if (peer_endpoint) - peer_endpoint->resize(addr_len); - peer.assign(impl.protocol_, new_socket.get(), ec); - if (!ec) - new_socket.release(); - return ec; - } + std::size_t addr_len = peer_endpoint ? peer_endpoint->capacity() : 0; + socket_holder new_socket(socket_ops::sync_accept(impl.socket_, + impl.state_, peer_endpoint ? peer_endpoint->data() : 0, + peer_endpoint ? &addr_len : 0, ec)); - // Operation failed. - if (ec == boost::asio::error::would_block - || ec == boost::asio::error::try_again) - { - if (impl.flags_ & implementation_type::user_set_non_blocking) - return ec; - // Fall through to retry operation. - } - else if (ec == boost::asio::error::connection_aborted) - { - if (impl.flags_ & implementation_type::enable_connection_aborted) - return ec; - // Fall through to retry operation. - } -#if defined(EPROTO) - else if (ec.value() == EPROTO) - { - if (impl.flags_ & implementation_type::enable_connection_aborted) - return ec; - // Fall through to retry operation. - } -#endif // defined(EPROTO) - else - return ec; - - // Wait for socket to become ready. - if (socket_ops::poll_read(impl.socket_, ec) < 0) - return ec; - } - } - - template <typename Socket> - class accept_op_base : public reactor_op - { - public: - accept_op_base(socket_type socket, Socket& peer, - const protocol_type& protocol, endpoint_type* peer_endpoint, - bool enable_connection_aborted, func_type complete_func) - : reactor_op(&accept_op_base::do_perform, complete_func), - socket_(socket), - peer_(peer), - protocol_(protocol), - peer_endpoint_(peer_endpoint), - enable_connection_aborted_(enable_connection_aborted) - { - } - - static bool do_perform(reactor_op* base) + // On success, assign new connection to peer socket object. + if (new_socket.get() != invalid_socket) { - accept_op_base* o(static_cast<accept_op_base*>(base)); - - for (;;) - { - // Accept the waiting connection. - boost::system::error_code ec; - socket_holder new_socket; - std::size_t addr_len = 0; - std::size_t* addr_len_p = 0; - socket_addr_type* addr = 0; - if (o->peer_endpoint_) - { - addr_len = o->peer_endpoint_->capacity(); - addr_len_p = &addr_len; - addr = o->peer_endpoint_->data(); - } - new_socket.reset(socket_ops::accept(o->socket_, addr, addr_len_p, 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; - if (ec == boost::asio::error::connection_aborted - && !o->enable_connection_aborted_) - return false; -#if defined(EPROTO) - if (ec.value() == EPROTO && !o->enable_connection_aborted_) - return false; -#endif // defined(EPROTO) - - // Transfer ownership of the new socket to the peer object. - if (!ec) - { - if (o->peer_endpoint_) - o->peer_endpoint_->resize(addr_len); - o->peer_.assign(o->protocol_, new_socket.get(), ec); - if (!ec) - new_socket.release(); - } - - o->ec_ = ec; - return true; - } - } - - private: - socket_type socket_; - Socket& peer_; - protocol_type protocol_; - endpoint_type* peer_endpoint_; - bool enable_connection_aborted_; - }; - - template <typename Socket, typename Handler> - class accept_op : public accept_op_base<Socket> - { - public: - accept_op(socket_type socket, Socket& peer, const protocol_type& protocol, - endpoint_type* peer_endpoint, bool enable_connection_aborted, - Handler handler) - : accept_op_base<Socket>(socket, peer, protocol, peer_endpoint, - enable_connection_aborted, &accept_op::do_complete), - handler_(handler) - { - } - - static void do_complete(io_service_impl* owner, operation* base, - boost::system::error_code /*ec*/, std::size_t /*bytes_transferred*/) - { - // Take ownership of the handler object. - accept_op* o(static_cast<accept_op*>(base)); - typedef handler_alloc_traits<Handler, accept_op> alloc_traits; - handler_ptr<alloc_traits> ptr(o->handler_, o); - - // Make the upcall if required. - if (owner) - { - // Make a copy of the handler so that the memory can be deallocated - // before the upcall is made. Even if we're not about to make an - // upcall, a sub-object of the handler may be the true owner of the - // memory associated with the handler. Consequently, a local copy of - // the handler is required to ensure that any owning sub-object remains - // valid until after we have deallocated the memory here. - detail::binder1<Handler, boost::system::error_code> - handler(o->handler_, o->ec_); - ptr.reset(); - boost::asio::detail::fenced_block b; - boost_asio_handler_invoke_helpers::invoke(handler, handler); - } + if (peer_endpoint) + peer_endpoint->resize(addr_len); + if (!peer.assign(impl.protocol_, new_socket.get(), ec)) + new_socket.release(); } - private: - Handler handler_; - }; + return ec; + } // Start an asynchronous accept. The peer and peer_endpoint objects // must be valid until the accept's handler is invoked. @@ -1511,230 +344,41 @@ public: endpoint_type* peer_endpoint, Handler handler) { // Allocate and construct an operation to wrap the handler. - typedef accept_op<Socket, Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - bool enable_connection_aborted = - (impl.flags_ & implementation_type::enable_connection_aborted) != 0; - handler_ptr<alloc_traits> ptr(raw_ptr, impl.socket_, peer, - impl.protocol_, peer_endpoint, enable_connection_aborted, handler); + typedef reactive_socket_accept_op<Socket, Protocol, 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(impl.socket_, impl.state_, peer, + impl.protocol_, peer_endpoint, handler); - start_accept_op(impl, ptr.get(), peer.is_open()); - ptr.release(); + start_accept_op(impl, p.p, peer.is_open()); + p.v = p.p = 0; } // Connect the socket to the specified endpoint. boost::system::error_code connect(implementation_type& impl, const endpoint_type& peer_endpoint, boost::system::error_code& ec) { - if (!is_open(impl)) - { - ec = boost::asio::error::bad_descriptor; - return ec; - } - - // Perform the connect operation. - socket_ops::connect(impl.socket_, + socket_ops::sync_connect(impl.socket_, peer_endpoint.data(), peer_endpoint.size(), ec); - if (ec != boost::asio::error::in_progress - && ec != boost::asio::error::would_block) - { - // The connect operation finished immediately. - return ec; - } - - // Wait for socket to become ready. - if (socket_ops::poll_connect(impl.socket_, ec) < 0) - return ec; - - // Get the error code from the connect operation. - int connect_error = 0; - size_t connect_error_len = sizeof(connect_error); - if (socket_ops::getsockopt(impl.socket_, SOL_SOCKET, SO_ERROR, - &connect_error, &connect_error_len, ec) == socket_error_retval) - return ec; - - // Return the result of the connect operation. - ec = boost::system::error_code(connect_error, - boost::asio::error::get_system_category()); return ec; } - class connect_op_base : public reactor_op - { - public: - connect_op_base(socket_type socket, func_type complete_func) - : reactor_op(&connect_op_base::do_perform, complete_func), - socket_(socket) - { - } - - static bool do_perform(reactor_op* base) - { - connect_op_base* o(static_cast<connect_op_base*>(base)); - - // Get the error code from the connect operation. - int connect_error = 0; - size_t connect_error_len = sizeof(connect_error); - if (socket_ops::getsockopt(o->socket_, SOL_SOCKET, SO_ERROR, - &connect_error, &connect_error_len, o->ec_) == socket_error_retval) - return true; - - // The connection failed so the handler will be posted with an error code. - if (connect_error) - { - o->ec_ = boost::system::error_code(connect_error, - boost::asio::error::get_system_category()); - } - - return true; - } - - private: - socket_type socket_; - }; - - template <typename Handler> - class connect_op : public connect_op_base - { - public: - connect_op(socket_type socket, Handler handler) - : connect_op_base(socket, &connect_op::do_complete), - handler_(handler) - { - } - - static void do_complete(io_service_impl* owner, operation* base, - boost::system::error_code /*ec*/, std::size_t /*bytes_transferred*/) - { - // Take ownership of the handler object. - connect_op* o(static_cast<connect_op*>(base)); - typedef handler_alloc_traits<Handler, connect_op> alloc_traits; - handler_ptr<alloc_traits> ptr(o->handler_, o); - - // Make the upcall if required. - if (owner) - { - // Make a copy of the handler so that the memory can be deallocated - // before the upcall is made. Even if we're not about to make an - // upcall, a sub-object of the handler may be the true owner of the - // memory associated with the handler. Consequently, a local copy of - // the handler is required to ensure that any owning sub-object remains - // valid until after we have deallocated the memory here. - detail::binder1<Handler, boost::system::error_code> - handler(o->handler_, o->ec_); - ptr.reset(); - boost::asio::detail::fenced_block b; - boost_asio_handler_invoke_helpers::invoke(handler, handler); - } - } - - private: - Handler handler_; - }; - // Start an asynchronous connect. template <typename Handler> void async_connect(implementation_type& impl, const endpoint_type& peer_endpoint, Handler handler) { // Allocate and construct an operation to wrap the handler. - typedef connect_op<Handler> value_type; - typedef handler_alloc_traits<Handler, value_type> alloc_traits; - raw_handler_ptr<alloc_traits> raw_ptr(handler); - handler_ptr<alloc_traits> ptr(raw_ptr, impl.socket_, handler); - - start_connect_op(impl, ptr.get(), peer_endpoint); - ptr.release(); - } - -private: - // Start the asynchronous read or write operation. - void start_op(implementation_type& impl, int op_type, - reactor_op* op, bool non_blocking, bool noop) - { - if (!noop) - { - if (is_open(impl)) - { - if (!non_blocking || is_non_blocking(impl) - || set_non_blocking(impl, op->ec_)) - { - reactor_.start_op(op_type, impl.socket_, - impl.reactor_data_, op, non_blocking); - return; - } - } - else - op->ec_ = boost::asio::error::bad_descriptor; - } + typedef reactive_socket_connect_op<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(impl.socket_, handler); - io_service_impl_.post_immediate_completion(op); + start_connect_op(impl, p.p, peer_endpoint.data(), peer_endpoint.size()); + p.v = p.p = 0; } - - // Start the asynchronous accept operation. - void start_accept_op(implementation_type& impl, - reactor_op* op, bool peer_is_open) - { - if (!peer_is_open) - start_op(impl, reactor::read_op, op, true, false); - else - { - op->ec_ = boost::asio::error::already_open; - io_service_impl_.post_immediate_completion(op); - } - } - - // Start the asynchronous connect operation. - void start_connect_op(implementation_type& impl, - reactor_op* op, const endpoint_type& peer_endpoint) - { - if (is_open(impl)) - { - if (is_non_blocking(impl) || set_non_blocking(impl, op->ec_)) - { - if (socket_ops::connect(impl.socket_, peer_endpoint.data(), - peer_endpoint.size(), op->ec_) != 0) - { - if (op->ec_ == boost::asio::error::in_progress - || op->ec_ == boost::asio::error::would_block) - { - op->ec_ = boost::system::error_code(); - reactor_.start_op(reactor::connect_op, - impl.socket_, impl.reactor_data_, op, false); - return; - } - } - } - } - else - op->ec_ = boost::asio::error::bad_descriptor; - - io_service_impl_.post_immediate_completion(op); - } - - // Determine whether the socket has been set non-blocking. - bool is_non_blocking(implementation_type& impl) const - { - return (impl.flags_ & implementation_type::non_blocking); - } - - // Set the internal non-blocking flag. - bool set_non_blocking(implementation_type& impl, - boost::system::error_code& ec) - { - ioctl_arg_type non_blocking = 1; - if (socket_ops::ioctl(impl.socket_, FIONBIO, &non_blocking, ec)) - return false; - impl.flags_ |= implementation_type::internal_non_blocking; - return true; - } - - // The io_service implementation used to post completions. - io_service_impl& io_service_impl_; - - // The selector that performs event demultiplexing for the service. - reactor& reactor_; }; } // namespace detail @@ -1743,4 +387,6 @@ private: #include <boost/asio/detail/pop_options.hpp> +#endif // !defined(BOOST_ASIO_HAS_IOCP) + #endif // BOOST_ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_HPP |