diff options
author | Remko Tronçon <git@el-tramo.be> | 2010-11-24 20:33:19 (GMT) |
---|---|---|
committer | Remko Tronçon <git@el-tramo.be> | 2010-11-24 20:35:17 (GMT) |
commit | 332d60c56dfaa11fdd135088279d15cd5983b3d4 (patch) | |
tree | dd77717a4e1732da929d5ff8a0471fa3f005e201 /3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp | |
parent | 90c44a10fec26d2a0935b2d62e82b6a5be028373 (diff) | |
download | swift-contrib-332d60c56dfaa11fdd135088279d15cd5983b3d4.zip swift-contrib-332d60c56dfaa11fdd135088279d15cd5983b3d4.tar.bz2 |
Upgraded Boost to 1.45.0.
Diffstat (limited to '3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp')
-rw-r--r-- | 3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp new file mode 100644 index 0000000..f94570a --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/detail/impl/strand_service.ipp @@ -0,0 +1,108 @@ +// +// detail/impl/strand_service.ipp +// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2010 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_STRAND_SERVICE_IPP +#define BOOST_ASIO_DETAIL_IMPL_STRAND_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 <boost/asio/detail/call_stack.hpp> +#include <boost/asio/detail/strand_service.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +struct strand_service::on_do_complete_exit +{ + io_service_impl* owner_; + strand_impl* impl_; + + ~on_do_complete_exit() + { + impl_->mutex_.lock(); + bool more_handlers = (--impl_->count_ > 0); + impl_->mutex_.unlock(); + + if (more_handlers) + owner_->post_immediate_completion(impl_); + } +}; + +strand_service::strand_service(boost::asio::io_service& io_service) + : boost::asio::detail::service_base<strand_service>(io_service), + io_service_(boost::asio::use_service<io_service_impl>(io_service)), + mutex_(), + salt_(0) +{ +} + +void strand_service::shutdown_service() +{ + op_queue<operation> ops; + + 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_); +} + +void strand_service::construct(strand_service::implementation_type& impl) +{ + std::size_t salt = salt_++; + 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); + index = index % num_implementations; + + boost::asio::detail::mutex::scoped_lock lock(mutex_); + + if (!implementations_[index]) + implementations_[index].reset(new strand_impl); + impl = implementations_[index].get(); +} + +void strand_service::do_complete(io_service_impl* owner, operation* base, + 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); + + // Ensure the next handler, if any, is scheduled on block exit. + on_do_complete_exit on_exit = { owner, impl }; + (void)on_exit; + + o->complete(*owner); + } +} + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // BOOST_ASIO_DETAIL_IMPL_STRAND_SERVICE_IPP |