src/lib/platform/windows/os-threads.h

   1 #pragma once
   2 /*
   3  * This file is part of the libCEC(R) library.
   4  *
   5  * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited.  All rights reserved.
   6  * libCEC(R) is an original work, containing original code.
   7  *
   8  * libCEC(R) is a trademark of Pulse-Eight Limited.
   9  *
  10  * This program is dual-licensed; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  *
  24  *
  25  * Alternatively, you can license this library under a commercial license,
  26  * please contact Pulse-Eight Licensing for more information.
  27  *
  28  * For more information contact:
  29  * Pulse-Eight Licensing       <license@pulse-eight.com>
  30  *     http://www.pulse-eight.com/
  31  *     http://www.pulse-eight.net/
  32  */
  33
  34 namespace PLATFORM
  35 {
  36   #define thread_t                                 HANDLE
  37   #define ThreadsWait(thread, retVal)              (::WaitForSingleObject(thread, INFINITE) < 0)
  38   #define ThreadsCreate(thread, func, arg)         ((thread = ::CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)func, arg, 0, NULL)) == NULL ? false : true)
  39
  40   typedef CRITICAL_SECTION* mutex_t;
  41   #define MutexCreate(mutex)                       ::InitializeCriticalSection(mutex = new CRITICAL_SECTION)
  42   #define MutexDelete(mutex)                       ::DeleteCriticalSection(mutex); delete mutex
  43   #define MutexLock(mutex)                         ::EnterCriticalSection(mutex)
  44   #define MutexTryLock(mutex)                      (::TryEnterCriticalSection(mutex) != 0)
  45   #define MutexUnlock(mutex)                       ::LeaveCriticalSection(mutex)
  46
  47   #if (_WIN32_WINNT >= _WIN32_WINNT_VISTA)
  48   typedef CONDITION_VARIABLE* condition_t;
  49   #define ConditionCreate(cond)                    ::InitializeConditionVariable(cond = new CONDITION_VARIABLE)
  50   #define ConditionDelete(cond)                    delete cond
  51   #define ConditionSignal(cond)                    ::WakeConditionVariable(cond)
  52   #define ConditionBroadcast(cond)                 ::WakeAllConditionVariable(cond)
  53   #define ConditionWait(cond, mutex, timeout)      (::SleepConditionVariableCS(cond, mutex, timeout <= 0 ? INFINITE : timeout) ? true : false)
  54   #else
  55   typedef HANDLE condition_t;
  56   #define ConditionCreate(cond)                    (cond = ::CreateEvent(NULL, TRUE, FALSE, NULL))
  57   #define ConditionDelete(cond)                    ::CloseHandle(cond)
  58   #define ConditionSignal(cond)                    ::SetEvent(cond)
  59   #define ConditionBroadcast(cond)                 ::SetEvent(cond)
  60   #define ConditionWait(cond, mutex, timeout)      ::ResetEvent(cond); \
  61                                                    MutexUnlock(mutex); \
  62                                                    ::WaitForSingleObject(cond, timeout <= 0 ? 1000 : timeout); \
  63                                                    MutexLock(mutex)
  64   #endif
  65 }