diff options
Diffstat (limited to '3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp')
-rw-r--r-- | 3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp b/3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp new file mode 100644 index 0000000..22d2300 --- /dev/null +++ b/3rdParty/Boost/src/boost/asio/detail/impl/win_thread.ipp @@ -0,0 +1,140 @@ +// +// detail/impl/win_thread.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_WIN_THREAD_IPP +#define BOOST_ASIO_DETAIL_IMPL_WIN_THREAD_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) && !defined(UNDER_CE) + +#include <process.h> +#include <boost/asio/detail/throw_error.hpp> +#include <boost/asio/detail/win_thread.hpp> +#include <boost/asio/error.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +win_thread::~win_thread() +{ + ::CloseHandle(thread_); + + // The exit_event_ handle is deliberately allowed to leak here since it + // is an error for the owner of an internal thread not to join() it. +} + +void win_thread::join() +{ + HANDLE handles[2] = { exit_event_, thread_ }; + ::WaitForMultipleObjects(2, handles, FALSE, INFINITE); + ::CloseHandle(exit_event_); + if (terminate_threads()) + { + ::TerminateThread(thread_, 0); + } + else + { + ::QueueUserAPC(apc_function, thread_, 0); + ::WaitForSingleObject(thread_, INFINITE); + } +} + +void win_thread::start_thread(func_base* arg, unsigned int stack_size) +{ + ::HANDLE entry_event = 0; + arg->entry_event_ = entry_event = ::CreateEvent(0, true, false, 0); + if (!entry_event) + { + DWORD last_error = ::GetLastError(); + delete arg; + boost::system::error_code ec(last_error, + boost::asio::error::get_system_category()); + boost::asio::detail::throw_error(ec, "thread.entry_event"); + } + + arg->exit_event_ = exit_event_ = ::CreateEvent(0, true, false, 0); + if (!exit_event_) + { + DWORD last_error = ::GetLastError(); + delete arg; + boost::system::error_code ec(last_error, + boost::asio::error::get_system_category()); + boost::asio::detail::throw_error(ec, "thread.exit_event"); + } + + unsigned int thread_id = 0; + thread_ = reinterpret_cast<HANDLE>(::_beginthreadex(0, + stack_size, win_thread_function, arg, 0, &thread_id)); + if (!thread_) + { + DWORD last_error = ::GetLastError(); + delete arg; + if (entry_event) + ::CloseHandle(entry_event); + if (exit_event_) + ::CloseHandle(exit_event_); + boost::system::error_code ec(last_error, + boost::asio::error::get_system_category()); + boost::asio::detail::throw_error(ec, "thread"); + } + + if (entry_event) + { + ::WaitForSingleObject(entry_event, INFINITE); + ::CloseHandle(entry_event); + } +} + +unsigned int __stdcall win_thread_function(void* arg) +{ + std::auto_ptr<win_thread::func_base> func( + static_cast<win_thread::func_base*>(arg)); + + ::SetEvent(func->entry_event_); + + func->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 + // joined during global object destruction then it may be killed using + // 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(); + ::SetEvent(exit_event); + ::SleepEx(INFINITE, TRUE); + + return 0; +} + +#if defined(WINVER) && (WINVER < 0x0500) +void __stdcall apc_function(ULONG) {} +#else +void __stdcall apc_function(ULONG_PTR) {} +#endif + +} // namespace detail +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // defined(BOOST_WINDOWS) && !defined(UNDER_CE) + +#endif // BOOST_ASIO_DETAIL_IMPL_WIN_THREAD_IPP |