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- // semaphore.hpp --------------------------------------------------------------//
- // Copyright 2010 Vicente J. Botet Escriba
- // Copyright 2015 Andrey Semashev
- // Distributed under the Boost Software License, Version 1.0.
- // See http://www.boost.org/LICENSE_1_0.txt
- #ifndef BOOST_DETAIL_WINAPI_SEMAPHORE_HPP
- #define BOOST_DETAIL_WINAPI_SEMAPHORE_HPP
- #include <boost/detail/winapi/basic_types.hpp>
- #include <boost/predef/platform.h>
- #ifdef BOOST_HAS_PRAGMA_ONCE
- #pragma once
- #endif
- #if !defined( BOOST_USE_WINDOWS_H )
- extern "C" {
- #if !defined( BOOST_NO_ANSI_APIS )
- #if !defined( BOOST_PLAT_WINDOWS_RUNTIME_AVALIABLE )
- BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
- CreateSemaphoreA(
- ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
- boost::detail::winapi::LONG_ lInitialCount,
- boost::detail::winapi::LONG_ lMaximumCount,
- boost::detail::winapi::LPCSTR_ lpName);
- #endif
- #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
- BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
- CreateSemaphoreExA(
- ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
- boost::detail::winapi::LONG_ lInitialCount,
- boost::detail::winapi::LONG_ lMaximumCount,
- boost::detail::winapi::LPCSTR_ lpName,
- boost::detail::winapi::DWORD_ dwFlags,
- boost::detail::winapi::DWORD_ dwDesiredAccess);
- #endif
- BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
- OpenSemaphoreA(
- boost::detail::winapi::DWORD_ dwDesiredAccess,
- boost::detail::winapi::BOOL_ bInheritHandle,
- boost::detail::winapi::LPCSTR_ lpName);
- #endif
- BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
- CreateSemaphoreW(
- ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
- boost::detail::winapi::LONG_ lInitialCount,
- boost::detail::winapi::LONG_ lMaximumCount,
- boost::detail::winapi::LPCWSTR_ lpName);
- #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
- BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
- CreateSemaphoreExW(
- ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
- boost::detail::winapi::LONG_ lInitialCount,
- boost::detail::winapi::LONG_ lMaximumCount,
- boost::detail::winapi::LPCWSTR_ lpName,
- boost::detail::winapi::DWORD_ dwFlags,
- boost::detail::winapi::DWORD_ dwDesiredAccess);
- #endif
- BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
- OpenSemaphoreW(
- boost::detail::winapi::DWORD_ dwDesiredAccess,
- boost::detail::winapi::BOOL_ bInheritHandle,
- boost::detail::winapi::LPCWSTR_ lpName);
- BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI
- ReleaseSemaphore(
- boost::detail::winapi::HANDLE_ hSemaphore,
- boost::detail::winapi::LONG_ lReleaseCount,
- boost::detail::winapi::LPLONG_ lpPreviousCount);
- }
- #endif
- namespace boost {
- namespace detail {
- namespace winapi {
- #if !defined( BOOST_NO_ANSI_APIS )
- using ::OpenSemaphoreA;
- #endif
- using ::OpenSemaphoreW;
- using ::ReleaseSemaphore;
- #if defined( BOOST_USE_WINDOWS_H )
- const DWORD_ SEMAPHORE_ALL_ACCESS_ = SEMAPHORE_ALL_ACCESS;
- const DWORD_ SEMAPHORE_MODIFY_STATE_ = SEMAPHORE_MODIFY_STATE;
- #else // defined( BOOST_USE_WINDOWS_H )
- const DWORD_ SEMAPHORE_ALL_ACCESS_ = 0x001F0003;
- const DWORD_ SEMAPHORE_MODIFY_STATE_ = 0x00000002;
- #endif // defined( BOOST_USE_WINDOWS_H )
- // Undocumented and not present in Windows SDK. Enables NtQuerySemaphore.
- // http://undocumented.ntinternals.net/index.html?page=UserMode%2FUndocumented%20Functions%2FNT%20Objects%2FEvent%2FNtQueryEvent.html
- const DWORD_ SEMAPHORE_QUERY_STATE_ = 0x00000001;
- const DWORD_ semaphore_all_access = SEMAPHORE_ALL_ACCESS_;
- const DWORD_ semaphore_modify_state = SEMAPHORE_MODIFY_STATE_;
- #if !defined( BOOST_NO_ANSI_APIS )
- BOOST_FORCEINLINE HANDLE_ CreateSemaphoreA(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName)
- {
- #if BOOST_PLAT_WINDOWS_RUNTIME && BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
- return ::CreateSemaphoreExA(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, 0, semaphore_all_access);
- #else
- return ::CreateSemaphoreA(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName);
- #endif
- }
- #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
- BOOST_FORCEINLINE HANDLE_ CreateSemaphoreExA(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName, DWORD_ dwFlags, DWORD_ dwDesiredAccess)
- {
- return ::CreateSemaphoreExA(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, dwFlags, dwDesiredAccess);
- }
- #endif
- #endif
- BOOST_FORCEINLINE HANDLE_ CreateSemaphoreW(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName)
- {
- #if BOOST_PLAT_WINDOWS_RUNTIME && BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
- return ::CreateSemaphoreExW(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, 0, semaphore_all_access);
- #else
- return ::CreateSemaphoreW(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName);
- #endif
- }
- #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
- BOOST_FORCEINLINE HANDLE_ CreateSemaphoreExW(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName, DWORD_ dwFlags, DWORD_ dwDesiredAccess)
- {
- return ::CreateSemaphoreExW(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, dwFlags, dwDesiredAccess);
- }
- #endif
- #if !defined( BOOST_NO_ANSI_APIS )
- BOOST_FORCEINLINE HANDLE_ create_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName)
- {
- return winapi::CreateSemaphoreA(lpSemaphoreAttributes, lInitialCount, lMaximumCount, lpName);
- }
- BOOST_FORCEINLINE HANDLE_ open_semaphore(DWORD_ dwDesiredAccess, BOOL_ bInheritHandle, LPCSTR_ lpName)
- {
- return ::OpenSemaphoreA(dwDesiredAccess, bInheritHandle, lpName);
- }
- #endif
- BOOST_FORCEINLINE HANDLE_ create_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName)
- {
- return winapi::CreateSemaphoreW(lpSemaphoreAttributes, lInitialCount, lMaximumCount, lpName);
- }
- BOOST_FORCEINLINE HANDLE_ open_semaphore(DWORD_ dwDesiredAccess, BOOL_ bInheritHandle, LPCWSTR_ lpName)
- {
- return ::OpenSemaphoreW(dwDesiredAccess, bInheritHandle, lpName);
- }
- BOOST_FORCEINLINE HANDLE_ create_anonymous_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount)
- {
- return winapi::CreateSemaphoreW(lpSemaphoreAttributes, lInitialCount, lMaximumCount, 0);
- }
- }
- }
- }
- #endif // BOOST_DETAIL_WINAPI_SEMAPHORE_HPP
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