ceph/src/boost/libs/winapi/include/boost/detail/winapi/semaphore.hpp

   1 //  semaphore.hpp  --------------------------------------------------------------//
   2
   3 //  Copyright 2010 Vicente J. Botet Escriba
   4 //  Copyright 2015 Andrey Semashev
   5
   6 //  Distributed under the Boost Software License, Version 1.0.
   7 //  See http://www.boost.org/LICENSE_1_0.txt
   8
   9
  10 #ifndef BOOST_DETAIL_WINAPI_SEMAPHORE_HPP
  11 #define BOOST_DETAIL_WINAPI_SEMAPHORE_HPP
  12
  13 #include <boost/detail/winapi/basic_types.hpp>
  14 #include <boost/predef/platform.h>
  15
  16 #ifdef BOOST_HAS_PRAGMA_ONCE
  17 #pragma once
  18 #endif
  19
  20 #if !defined( BOOST_USE_WINDOWS_H )
  21 extern "C" {
  22 #if !defined( BOOST_NO_ANSI_APIS )
  23 #if !defined( BOOST_PLAT_WINDOWS_RUNTIME_AVALIABLE )
  24 BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
  25 CreateSemaphoreA(
  26     ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
  27     boost::detail::winapi::LONG_ lInitialCount,
  28     boost::detail::winapi::LONG_ lMaximumCount,
  29     boost::detail::winapi::LPCSTR_ lpName);
  30 #endif
  31
  32 #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
  33 BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
  34 CreateSemaphoreExA(
  35     ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
  36     boost::detail::winapi::LONG_ lInitialCount,
  37     boost::detail::winapi::LONG_ lMaximumCount,
  38     boost::detail::winapi::LPCSTR_ lpName,
  39     boost::detail::winapi::DWORD_ dwFlags,
  40     boost::detail::winapi::DWORD_ dwDesiredAccess);
  41 #endif
  42
  43 BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
  44 OpenSemaphoreA(
  45     boost::detail::winapi::DWORD_ dwDesiredAccess,
  46     boost::detail::winapi::BOOL_ bInheritHandle,
  47     boost::detail::winapi::LPCSTR_ lpName);
  48 #endif
  49
  50 BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
  51 CreateSemaphoreW(
  52     ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
  53     boost::detail::winapi::LONG_ lInitialCount,
  54     boost::detail::winapi::LONG_ lMaximumCount,
  55     boost::detail::winapi::LPCWSTR_ lpName);
  56
  57 #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
  58 BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
  59 CreateSemaphoreExW(
  60     ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
  61     boost::detail::winapi::LONG_ lInitialCount,
  62     boost::detail::winapi::LONG_ lMaximumCount,
  63     boost::detail::winapi::LPCWSTR_ lpName,
  64     boost::detail::winapi::DWORD_ dwFlags,
  65     boost::detail::winapi::DWORD_ dwDesiredAccess);
  66 #endif
  67
  68 BOOST_SYMBOL_IMPORT boost::detail::winapi::HANDLE_ WINAPI
  69 OpenSemaphoreW(
  70     boost::detail::winapi::DWORD_ dwDesiredAccess,
  71     boost::detail::winapi::BOOL_ bInheritHandle,
  72     boost::detail::winapi::LPCWSTR_ lpName);
  73
  74 BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI
  75 ReleaseSemaphore(
  76     boost::detail::winapi::HANDLE_ hSemaphore,
  77     boost::detail::winapi::LONG_ lReleaseCount,
  78     boost::detail::winapi::LPLONG_ lpPreviousCount);
  79 }
  80 #endif
  81
  82 namespace boost {
  83 namespace detail {
  84 namespace winapi {
  85
  86 #if !defined( BOOST_NO_ANSI_APIS )
  87 using ::OpenSemaphoreA;
  88 #endif
  89 using ::OpenSemaphoreW;
  90 using ::ReleaseSemaphore;
  91
  92 #if defined( BOOST_USE_WINDOWS_H )
  93
  94 const DWORD_ SEMAPHORE_ALL_ACCESS_ = SEMAPHORE_ALL_ACCESS;
  95 const DWORD_ SEMAPHORE_MODIFY_STATE_ = SEMAPHORE_MODIFY_STATE;
  96
  97 #else // defined( BOOST_USE_WINDOWS_H )
  98
  99 const DWORD_ SEMAPHORE_ALL_ACCESS_ = 0x001F0003;
 100 const DWORD_ SEMAPHORE_MODIFY_STATE_ = 0x00000002;
 101
 102 #endif // defined( BOOST_USE_WINDOWS_H )
 103
 104 // Undocumented and not present in Windows SDK. Enables NtQuerySemaphore.
 105 // http://undocumented.ntinternals.net/index.html?page=UserMode%2FUndocumented%20Functions%2FNT%20Objects%2FEvent%2FNtQueryEvent.html
 106 const DWORD_ SEMAPHORE_QUERY_STATE_ = 0x00000001;
 107
 108 const DWORD_ semaphore_all_access = SEMAPHORE_ALL_ACCESS_;
 109 const DWORD_ semaphore_modify_state = SEMAPHORE_MODIFY_STATE_;
 110
 111
 112 #if !defined( BOOST_NO_ANSI_APIS )
 113 BOOST_FORCEINLINE HANDLE_ CreateSemaphoreA(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName)
 114 {
 115 #if BOOST_PLAT_WINDOWS_RUNTIME && BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
 116     return ::CreateSemaphoreExA(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, 0, semaphore_all_access);
 117 #else
 118     return ::CreateSemaphoreA(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName);
 119 #endif
 120 }
 121
 122 #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
 123 BOOST_FORCEINLINE HANDLE_ CreateSemaphoreExA(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName, DWORD_ dwFlags, DWORD_ dwDesiredAccess)
 124 {
 125     return ::CreateSemaphoreExA(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, dwFlags, dwDesiredAccess);
 126 }
 127 #endif
 128 #endif
 129
 130 BOOST_FORCEINLINE HANDLE_ CreateSemaphoreW(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName)
 131 {
 132 #if BOOST_PLAT_WINDOWS_RUNTIME && BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
 133     return ::CreateSemaphoreExW(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, 0, semaphore_all_access);
 134 #else
 135     return ::CreateSemaphoreW(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName);
 136 #endif
 137 }
 138
 139 #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
 140 BOOST_FORCEINLINE HANDLE_ CreateSemaphoreExW(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName, DWORD_ dwFlags, DWORD_ dwDesiredAccess)
 141 {
 142     return ::CreateSemaphoreExW(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, dwFlags, dwDesiredAccess);
 143 }
 144 #endif
 145
 146 #if !defined( BOOST_NO_ANSI_APIS )
 147 BOOST_FORCEINLINE HANDLE_ create_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName)
 148 {
 149     return winapi::CreateSemaphoreA(lpSemaphoreAttributes, lInitialCount, lMaximumCount, lpName);
 150 }
 151
 152 BOOST_FORCEINLINE HANDLE_ open_semaphore(DWORD_ dwDesiredAccess, BOOL_ bInheritHandle, LPCSTR_ lpName)
 153 {
 154     return ::OpenSemaphoreA(dwDesiredAccess, bInheritHandle, lpName);
 155 }
 156 #endif
 157
 158 BOOST_FORCEINLINE HANDLE_ create_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName)
 159 {
 160     return winapi::CreateSemaphoreW(lpSemaphoreAttributes, lInitialCount, lMaximumCount, lpName);
 161 }
 162
 163 BOOST_FORCEINLINE HANDLE_ open_semaphore(DWORD_ dwDesiredAccess, BOOL_ bInheritHandle, LPCWSTR_ lpName)
 164 {
 165     return ::OpenSemaphoreW(dwDesiredAccess, bInheritHandle, lpName);
 166 }
 167
 168 BOOST_FORCEINLINE HANDLE_ create_anonymous_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount)
 169 {
 170     return winapi::CreateSemaphoreW(lpSemaphoreAttributes, lInitialCount, lMaximumCount, 0);
 171 }
 172
 173 }
 174 }
 175 }
 176
 177 #endif // BOOST_DETAIL_WINAPI_SEMAPHORE_HPP