scilab-include 5.5.1-7 / usr / include / scilab / Thread_Wrapper.h

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/*
*  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
*  Copyright (C) 2008-2008 - INRIA - Bruno JOFRET
*  Copyright (C) 2008-2008 - INRIA - Allan CORNET
*
*  This file must be used under the terms of the CeCILL.
*  This source file is licensed as described in the file COPYING, which
*  you should have received as part of this distribution.  The terms
*  are also available at
*  http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
*
*/

/*
** Thread wrapper to have an easy way to manage
** those features on each platform
*/

#ifndef __THREAD_WRAPPER_H__
#define __THREAD_WRAPPER_H__

#ifdef _MSC_VER
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x500
#endif
#include <Windows.h>
#include <process.h>

typedef HANDLE				__threadId;
typedef HANDLE				__threadLock;
typedef CRITICAL_SECTION	__threadSignalLock;
typedef HANDLE				__threadSignal;

#define __InitSignalLock(lockName)				InitializeCriticalSection(lockName)

#define __LockSignal(lockName)					EnterCriticalSection(lockName)

#define __UnLockSignal(lockName)				LeaveCriticalSection(lockName)

#define __InitLock(lockName)					(*(lockName)=CreateMutex(NULL, FALSE, NULL))

#define __Lock(lockName)						WaitForSingleObject(*lockName, INFINITE)

#define __UnLock(lockName)						ReleaseMutex(*lockName)

#define __InitSignal(signalName)				(*signalName=CreateEvent(NULL, FALSE, FALSE, NULL))

#define __Signal(signalName)					SetEvent(*signalName)

#define __Wait(signalName, lockName)			{ResetEvent(*signalName); __UnLockSignal(lockName); WaitForSingleObject(*signalName, INFINITE); __LockSignal(lockName);};

#define __CreateThread(threadId, functionName)  *(threadId) = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)functionName, NULL, 0, NULL)

#define __WaitThreadDie(threadId)				((WaitForSingleObject((threadId),INFINITE)!=WAIT_OBJECT_0) || !CloseHandle(threadId))

#define __Terminate(threadId)					TerminateThread(threadId, 0)

#define __StaticInitLock                                        NULL

#define __StaticInitThreadSignal            NULL

#else
#include <pthread.h>

typedef pthread_t __threadId;
typedef pthread_mutex_t __threadLock;
typedef pthread_mutex_t __threadSignalLock;
typedef pthread_cond_t __threadSignal;

#define __InitLock(lockName)			pthread_mutex_init(lockName, NULL)

#define __Lock(lockName)			pthread_mutex_lock(lockName)

#define __UnLock(lockName)			pthread_mutex_unlock(lockName)
/* PTHREAD_MUTEX_ERRORCHECK needed for a safe release atexit when we try to release without knowing if we own the lock
PTHREAD_PROCESS_SHARED needed for interprocess synch (plus alloc in shared mem thread_mutexattr_settype
Linux uses PTHREAD_MUTEX_ERRORCHECK_NP other Posix use PTHREAD_MUTEX_ERRORCHECK
*/
#ifndef PTHREAD_MUTEX_ERRORCHECK
#define PTHREAD_MUTEX_ERRORCHECK PTHREAD_MUTEX_ERRORCHECK_NP
#endif
#define __InitSignalLock(lockName) \
    do { \
    pthread_mutexattr_t attr; \
    pthread_mutexattr_init (&attr); \
    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK); \
    pthread_mutexattr_setpshared (&attr, PTHREAD_PROCESS_SHARED); \
    pthread_mutex_init(lockName, NULL); \
    pthread_mutexattr_destroy(&attr); \
    } while (0)


#define __LockSignal(lockName)			pthread_mutex_lock(lockName)

#define __UnLockSignal(lockName)		pthread_mutex_unlock(lockName)

#define __InitSignal(signalName)		pthread_cond_init(signalName, NULL)

#define __Signal(signalName)			pthread_cond_signal(signalName)

#define __Wait(signalName, lockName)		pthread_cond_wait(signalName, lockName)

#define __CreateThread(threadId, functionName)  pthread_create(threadId, NULL, functionName, NULL)

#define __WaitThreadDie(threadId)		pthread_join(threadId, NULL)

#define __Terminate(threadId)			pthread_cancel(threadId)

#define __StaticInitLock                   PTHREAD_MUTEX_INITIALIZER

#define __StaticInitThreadSignal            PTHREAD_COND_INITIALIZER

#endif //_MSC_VER

#endif /* !__THREAD_WRAPPER_H__ */

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