1 /*
2 * Copyright 2010 Vicente J. Botet Escriba
3 * Copyright 2015 Andrey Semashev
4 *
5 * Distributed under the Boost Software License, Version 1.0.
6 * See http://www.boost.org/LICENSE_1_0.txt
7 */
8
9 #ifndef BOOST_WINAPI_SEMAPHORE_HPP_INCLUDED_
10 #define BOOST_WINAPI_SEMAPHORE_HPP_INCLUDED_
11
12 #include <boost/winapi/basic_types.hpp>
13
14 #ifdef BOOST_HAS_PRAGMA_ONCE
15 #pragma once
16 #endif
17
18 #if !defined( BOOST_USE_WINDOWS_H )
19 extern "C" {
20
21 #if BOOST_WINAPI_PARTITION_APP_SYSTEM
22 #if !defined( BOOST_NO_ANSI_APIS )
23
24 BOOST_SYMBOL_IMPORT boost::winapi::HANDLE_ BOOST_WINAPI_WINAPI_CC
25 CreateSemaphoreA(
26 ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
27 boost::winapi::LONG_ lInitialCount,
28 boost::winapi::LONG_ lMaximumCount,
29 boost::winapi::LPCSTR_ lpName);
30
31 #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
32 BOOST_SYMBOL_IMPORT boost::winapi::HANDLE_ BOOST_WINAPI_WINAPI_CC
33 CreateSemaphoreExA(
34 ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
35 boost::winapi::LONG_ lInitialCount,
36 boost::winapi::LONG_ lMaximumCount,
37 boost::winapi::LPCSTR_ lpName,
38 boost::winapi::DWORD_ dwFlags,
39 boost::winapi::DWORD_ dwDesiredAccess);
40 #endif
41
42 #endif // !defined( BOOST_NO_ANSI_APIS )
43
44 BOOST_SYMBOL_IMPORT boost::winapi::HANDLE_ BOOST_WINAPI_WINAPI_CC
45 CreateSemaphoreW(
46 ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
47 boost::winapi::LONG_ lInitialCount,
48 boost::winapi::LONG_ lMaximumCount,
49 boost::winapi::LPCWSTR_ lpName);
50
51 #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
52 BOOST_SYMBOL_IMPORT boost::winapi::HANDLE_ BOOST_WINAPI_WINAPI_CC
53 CreateSemaphoreExW(
54 ::_SECURITY_ATTRIBUTES* lpSemaphoreAttributes,
55 boost::winapi::LONG_ lInitialCount,
56 boost::winapi::LONG_ lMaximumCount,
57 boost::winapi::LPCWSTR_ lpName,
58 boost::winapi::DWORD_ dwFlags,
59 boost::winapi::DWORD_ dwDesiredAccess);
60 #endif
61
62 BOOST_SYMBOL_IMPORT boost::winapi::BOOL_ BOOST_WINAPI_WINAPI_CC
63 ReleaseSemaphore(
64 boost::winapi::HANDLE_ hSemaphore,
65 boost::winapi::LONG_ lReleaseCount,
66 boost::winapi::LPLONG_ lpPreviousCount);
67
68 #endif // BOOST_WINAPI_PARTITION_APP_SYSTEM
69
70 #if BOOST_WINAPI_PARTITION_DESKTOP_SYSTEM
71
72 #if !defined( BOOST_NO_ANSI_APIS )
73 BOOST_SYMBOL_IMPORT boost::winapi::HANDLE_ BOOST_WINAPI_WINAPI_CC
74 OpenSemaphoreA(
75 boost::winapi::DWORD_ dwDesiredAccess,
76 boost::winapi::BOOL_ bInheritHandle,
77 boost::winapi::LPCSTR_ lpName);
78 #endif // !defined( BOOST_NO_ANSI_APIS )
79
80 BOOST_SYMBOL_IMPORT boost::winapi::HANDLE_ BOOST_WINAPI_WINAPI_CC
81 OpenSemaphoreW(
82 boost::winapi::DWORD_ dwDesiredAccess,
83 boost::winapi::BOOL_ bInheritHandle,
84 boost::winapi::LPCWSTR_ lpName);
85
86 #endif // BOOST_WINAPI_PARTITION_DESKTOP_SYSTEM
87
88 } // extern "C"
89 #endif // !defined( BOOST_USE_WINDOWS_H )
90
91 namespace boost {
92 namespace winapi {
93
94 #if BOOST_WINAPI_PARTITION_APP_SYSTEM
95
96 using ::ReleaseSemaphore;
97
98 #if defined( BOOST_USE_WINDOWS_H )
99
100 BOOST_CONSTEXPR_OR_CONST DWORD_ SEMAPHORE_ALL_ACCESS_ = SEMAPHORE_ALL_ACCESS;
101 BOOST_CONSTEXPR_OR_CONST DWORD_ SEMAPHORE_MODIFY_STATE_ = SEMAPHORE_MODIFY_STATE;
102
103 #else // defined( BOOST_USE_WINDOWS_H )
104
105 BOOST_CONSTEXPR_OR_CONST DWORD_ SEMAPHORE_ALL_ACCESS_ = 0x001F0003;
106 BOOST_CONSTEXPR_OR_CONST DWORD_ SEMAPHORE_MODIFY_STATE_ = 0x00000002;
107
108 #endif // defined( BOOST_USE_WINDOWS_H )
109
110 // Undocumented and not present in Windows SDK. Enables NtQuerySemaphore.
111 // http://undocumented.ntinternals.net/index.html?page=UserMode%2FUndocumented%20Functions%2FNT%20Objects%2FEvent%2FNtQueryEvent.html
112 BOOST_CONSTEXPR_OR_CONST DWORD_ SEMAPHORE_QUERY_STATE_ = 0x00000001;
113
114 BOOST_CONSTEXPR_OR_CONST DWORD_ semaphore_all_access = SEMAPHORE_ALL_ACCESS_;
115 BOOST_CONSTEXPR_OR_CONST DWORD_ semaphore_modify_state = SEMAPHORE_MODIFY_STATE_;
116
117
118 #if !defined( BOOST_NO_ANSI_APIS )
CreateSemaphoreA(SECURITY_ATTRIBUTES_ * lpSemaphoreAttributes,LONG_ lInitialCount,LONG_ lMaximumCount,LPCSTR_ lpName)119 BOOST_FORCEINLINE HANDLE_ CreateSemaphoreA(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName)
120 {
121 return ::CreateSemaphoreA(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName);
122 }
123
124 #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
CreateSemaphoreExA(SECURITY_ATTRIBUTES_ * lpSemaphoreAttributes,LONG_ lInitialCount,LONG_ lMaximumCount,LPCSTR_ lpName,DWORD_ dwFlags,DWORD_ dwDesiredAccess)125 BOOST_FORCEINLINE HANDLE_ CreateSemaphoreExA(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName, DWORD_ dwFlags, DWORD_ dwDesiredAccess)
126 {
127 return ::CreateSemaphoreExA(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, dwFlags, dwDesiredAccess);
128 }
129 #endif
130 #endif // !defined( BOOST_NO_ANSI_APIS )
131
CreateSemaphoreW(SECURITY_ATTRIBUTES_ * lpSemaphoreAttributes,LONG_ lInitialCount,LONG_ lMaximumCount,LPCWSTR_ lpName)132 BOOST_FORCEINLINE HANDLE_ CreateSemaphoreW(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName)
133 {
134 return ::CreateSemaphoreW(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName);
135 }
136
137 #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
CreateSemaphoreExW(SECURITY_ATTRIBUTES_ * lpSemaphoreAttributes,LONG_ lInitialCount,LONG_ lMaximumCount,LPCWSTR_ lpName,DWORD_ dwFlags,DWORD_ dwDesiredAccess)138 BOOST_FORCEINLINE HANDLE_ CreateSemaphoreExW(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName, DWORD_ dwFlags, DWORD_ dwDesiredAccess)
139 {
140 return ::CreateSemaphoreExW(reinterpret_cast< ::_SECURITY_ATTRIBUTES* >(lpSemaphoreAttributes), lInitialCount, lMaximumCount, lpName, dwFlags, dwDesiredAccess);
141 }
142 #endif
143
144 #if !defined( BOOST_NO_ANSI_APIS )
create_semaphore(SECURITY_ATTRIBUTES_ * lpSemaphoreAttributes,LONG_ lInitialCount,LONG_ lMaximumCount,LPCSTR_ lpName)145 BOOST_FORCEINLINE HANDLE_ create_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCSTR_ lpName)
146 {
147 return winapi::CreateSemaphoreA(lpSemaphoreAttributes, lInitialCount, lMaximumCount, lpName);
148 }
149 #endif
150
create_semaphore(SECURITY_ATTRIBUTES_ * lpSemaphoreAttributes,LONG_ lInitialCount,LONG_ lMaximumCount,LPCWSTR_ lpName)151 BOOST_FORCEINLINE HANDLE_ create_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount, LPCWSTR_ lpName)
152 {
153 return winapi::CreateSemaphoreW(lpSemaphoreAttributes, lInitialCount, lMaximumCount, lpName);
154 }
155
create_anonymous_semaphore(SECURITY_ATTRIBUTES_ * lpSemaphoreAttributes,LONG_ lInitialCount,LONG_ lMaximumCount)156 BOOST_FORCEINLINE HANDLE_ create_anonymous_semaphore(SECURITY_ATTRIBUTES_* lpSemaphoreAttributes, LONG_ lInitialCount, LONG_ lMaximumCount)
157 {
158 return winapi::CreateSemaphoreW(lpSemaphoreAttributes, lInitialCount, lMaximumCount, 0);
159 }
160
161 #endif // BOOST_WINAPI_PARTITION_APP_SYSTEM
162
163 #if BOOST_WINAPI_PARTITION_DESKTOP_SYSTEM
164
165 #if !defined( BOOST_NO_ANSI_APIS )
166 using ::OpenSemaphoreA;
167
open_semaphore(DWORD_ dwDesiredAccess,BOOL_ bInheritHandle,LPCSTR_ lpName)168 BOOST_FORCEINLINE HANDLE_ open_semaphore(DWORD_ dwDesiredAccess, BOOL_ bInheritHandle, LPCSTR_ lpName)
169 {
170 return ::OpenSemaphoreA(dwDesiredAccess, bInheritHandle, lpName);
171 }
172 #endif // !defined( BOOST_NO_ANSI_APIS )
173
174 using ::OpenSemaphoreW;
175
open_semaphore(DWORD_ dwDesiredAccess,BOOL_ bInheritHandle,LPCWSTR_ lpName)176 BOOST_FORCEINLINE HANDLE_ open_semaphore(DWORD_ dwDesiredAccess, BOOL_ bInheritHandle, LPCWSTR_ lpName)
177 {
178 return ::OpenSemaphoreW(dwDesiredAccess, bInheritHandle, lpName);
179 }
180
181 #endif // BOOST_WINAPI_PARTITION_DESKTOP_SYSTEM
182
183 }
184 }
185
186 #endif // BOOST_WINAPI_SEMAPHORE_HPP_INCLUDED_
187