178 lines
6.8 KiB
C++
178 lines
6.8 KiB
C++
// 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
|