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| author | Remko Tronçon <git@el-tramo.be> | 2009-06-01 08:48:42 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2009-06-01 09:24:28 (GMT) |
| commit | 2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch) | |
| tree | d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/asio/detail/win_mutex.hpp | |
| download | swift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip swift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2 | |
Import.
Diffstat (limited to '3rdParty/Boost/boost/asio/detail/win_mutex.hpp')
| -rw-r--r-- | 3rdParty/Boost/boost/asio/detail/win_mutex.hpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/asio/detail/win_mutex.hpp b/3rdParty/Boost/boost/asio/detail/win_mutex.hpp new file mode 100644 index 0000000..f5470c4 --- /dev/null +++ b/3rdParty/Boost/boost/asio/detail/win_mutex.hpp @@ -0,0 +1,151 @@ +// +// win_mutex.hpp +// ~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2008 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_WIN_MUTEX_HPP +#define BOOST_ASIO_DETAIL_WIN_MUTEX_HPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <boost/asio/detail/push_options.hpp> + +#include <boost/asio/detail/push_options.hpp> +#include <boost/config.hpp> +#include <boost/system/system_error.hpp> +#include <boost/asio/detail/pop_options.hpp> + +#if defined(BOOST_WINDOWS) + +#include <boost/asio/error.hpp> +#include <boost/asio/detail/noncopyable.hpp> +#include <boost/asio/detail/socket_types.hpp> +#include <boost/asio/detail/scoped_lock.hpp> + +#include <boost/asio/detail/push_options.hpp> +#include <boost/throw_exception.hpp> +#include <boost/asio/detail/pop_options.hpp> + +namespace boost { +namespace asio { +namespace detail { + +class win_mutex + : private noncopyable +{ +public: + typedef boost::asio::detail::scoped_lock<win_mutex> scoped_lock; + + // Constructor. + win_mutex() + { + int error = do_init(); + if (error != 0) + { + boost::system::system_error e( + boost::system::error_code(error, + boost::asio::error::get_system_category()), + "mutex"); + boost::throw_exception(e); + } + } + + // Destructor. + ~win_mutex() + { + ::DeleteCriticalSection(&crit_section_); + } + + // Lock the mutex. + void lock() + { + int error = do_lock(); + if (error != 0) + { + boost::system::system_error e( + boost::system::error_code(error, + boost::asio::error::get_system_category()), + "mutex"); + boost::throw_exception(e); + } + } + + // Unlock the mutex. + void unlock() + { + ::LeaveCriticalSection(&crit_section_); + } + +private: + // Initialisation must be performed in a separate function to the constructor + // since the compiler does not support the use of structured exceptions and + // C++ exceptions in the same function. + int do_init() + { +#if defined(__MINGW32__) + // Not sure if MinGW supports structured exception handling, so for now + // we'll just call the Windows API and hope. + ::InitializeCriticalSection(&crit_section_); + return 0; +#else + __try + { + ::InitializeCriticalSection(&crit_section_); + } + __except(GetExceptionCode() == STATUS_NO_MEMORY + ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH) + { + return ERROR_OUTOFMEMORY; + } + + return 0; +#endif + } + + // Locking must be performed in a separate function to lock() since the + // compiler does not support the use of structured exceptions and C++ + // exceptions in the same function. + int do_lock() + { +#if defined(__MINGW32__) + // Not sure if MinGW supports structured exception handling, so for now + // we'll just call the Windows API and hope. + ::EnterCriticalSection(&crit_section_); + return 0; +#else + __try + { + ::EnterCriticalSection(&crit_section_); + } + __except(GetExceptionCode() == STATUS_INVALID_HANDLE + || GetExceptionCode() == STATUS_NO_MEMORY + ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH) + { + if (GetExceptionCode() == STATUS_NO_MEMORY) + return ERROR_OUTOFMEMORY; + return ERROR_INVALID_HANDLE; + } + + return 0; +#endif + } + + ::CRITICAL_SECTION crit_section_; +}; + +} // namespace detail +} // namespace asio +} // namespace boost + +#endif // defined(BOOST_WINDOWS) + +#include <boost/asio/detail/pop_options.hpp> + +#endif // BOOST_ASIO_DETAIL_WIN_MUTEX_HPP |