Swiftdiff options
| author | Remko Tronçon <git@el-tramo.be> | 2010-02-11 12:14:00 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2010-02-11 12:14:00 (GMT) |
| commit | 0efa7c32aaf21a29b42b5926cc116007056843be (patch) | |
| tree | 882f663a5dd0e65694bf6077b71086dd77fd7ff8 /3rdParty/Boost/boost/thread/win32/once.hpp | |
| parent | 1d20eabbc32274b491b4c2bedf73d19933d97bfd (diff) | |
| download | swift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.zip swift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.tar.bz2 | |
Moved some modules into separate git modules.
Diffstat (limited to '3rdParty/Boost/boost/thread/win32/once.hpp')
| m--------- | 3rdParty/Boost | 0 | ||||
| -rw-r--r-- | 3rdParty/Boost/boost/thread/win32/once.hpp | 136 |
2 files changed, 0 insertions, 136 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost new file mode 160000 +Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79 diff --git a/3rdParty/Boost/boost/thread/win32/once.hpp b/3rdParty/Boost/boost/thread/win32/once.hpp deleted file mode 100644 index a6fcc94..0000000 --- a/3rdParty/Boost/boost/thread/win32/once.hpp +++ /dev/null @@ -1,136 +0,0 @@ -#ifndef BOOST_THREAD_WIN32_ONCE_HPP -#define BOOST_THREAD_WIN32_ONCE_HPP - -// once.hpp -// -// (C) Copyright 2005-7 Anthony Williams -// (C) Copyright 2005 John Maddock -// -// 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) - -#include <cstring> -#include <cstddef> -#include <boost/assert.hpp> -#include <boost/static_assert.hpp> -#include <boost/detail/interlocked.hpp> -#include <boost/thread/win32/thread_primitives.hpp> -#include <boost/thread/win32/interlocked_read.hpp> - -#include <boost/config/abi_prefix.hpp> - -#ifdef BOOST_NO_STDC_NAMESPACE -namespace std -{ - using ::memcpy; - using ::ptrdiff_t; -} -#endif - -namespace boost -{ - typedef long once_flag; - -#define BOOST_ONCE_INIT 0 - - namespace detail - { - struct win32_mutex_scoped_lock - { - void* const mutex_handle; - explicit win32_mutex_scoped_lock(void* mutex_handle_): - mutex_handle(mutex_handle_) - { - BOOST_VERIFY(!win32::WaitForSingleObject(mutex_handle,win32::infinite)); - } - ~win32_mutex_scoped_lock() - { - BOOST_VERIFY(win32::ReleaseMutex(mutex_handle)!=0); - } - private: - void operator=(win32_mutex_scoped_lock&); - }; - -#ifdef BOOST_NO_ANSI_APIS - template <class I> - void int_to_string(I p, wchar_t* buf) - { - for(unsigned i=0; i < sizeof(I)*2; ++i,++buf) - { - *buf = L'A' + static_cast<wchar_t>((p >> (i*4)) & 0x0f); - } - *buf = 0; - } -#else - template <class I> - void int_to_string(I p, char* buf) - { - for(unsigned i=0; i < sizeof(I)*2; ++i,++buf) - { - *buf = 'A' + static_cast<char>((p >> (i*4)) & 0x0f); - } - *buf = 0; - } -#endif - - // create a named mutex. It doesn't really matter what this name is - // as long as it is unique both to this process, and to the address of "flag": - inline void* create_once_mutex(void* flag_address) - { - -#ifdef BOOST_NO_ANSI_APIS - typedef wchar_t char_type; - static const char_type fixed_mutex_name[]=L"{C15730E2-145C-4c5e-B005-3BC753F42475}-once-flag"; -#else - typedef char char_type; - static const char_type fixed_mutex_name[]="{C15730E2-145C-4c5e-B005-3BC753F42475}-once-flag"; -#endif - unsigned const once_mutex_name_fixed_buffer_size=sizeof(fixed_mutex_name)/sizeof(char_type); - unsigned const once_mutex_name_fixed_length=once_mutex_name_fixed_buffer_size-1; - unsigned const once_mutex_name_length=once_mutex_name_fixed_buffer_size+sizeof(void*)*2+sizeof(unsigned long)*2; - char_type mutex_name[once_mutex_name_length]; - - std::memcpy(mutex_name,fixed_mutex_name,sizeof(fixed_mutex_name)); - - BOOST_STATIC_ASSERT(sizeof(void*) == sizeof(std::ptrdiff_t)); - detail::int_to_string(reinterpret_cast<std::ptrdiff_t>(flag_address), mutex_name + once_mutex_name_fixed_length); - detail::int_to_string(win32::GetCurrentProcessId(), mutex_name + once_mutex_name_fixed_length + sizeof(void*)*2); - -#ifdef BOOST_NO_ANSI_APIS - return win32::CreateMutexW(0, 0, mutex_name); -#else - return win32::CreateMutexA(0, 0, mutex_name); -#endif - } - - - } - - - template<typename Function> - void call_once(once_flag& flag,Function f) - { - // Try for a quick win: if the procedure has already been called - // just skip through: - long const function_complete_flag_value=0xc15730e2; - - if(::boost::detail::interlocked_read_acquire(&flag)!=function_complete_flag_value) - { - void* const mutex_handle(::boost::detail::create_once_mutex(&flag)); - BOOST_ASSERT(mutex_handle); - detail::win32::handle_manager const closer(mutex_handle); - detail::win32_mutex_scoped_lock const lock(mutex_handle); - - if(flag!=function_complete_flag_value) - { - f(); - BOOST_INTERLOCKED_EXCHANGE(&flag,function_complete_flag_value); - } - } - } -} - -#include <boost/config/abi_suffix.hpp> - -#endif |