pcsx2/plugins/GSdx/GSThread.cpp

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/*
* Copyright (C) 2007-2009 Gabest
* http://www.gabest.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "stdafx.h"
#include "GSThread.h"
#ifdef _WINDOWS
InitializeConditionVariablePtr pInitializeConditionVariable;
WakeConditionVariablePtr pWakeConditionVariable;
WakeAllConditionVariablePtr pWakeAllConditionVariable;
SleepConditionVariableSRWPtr pSleepConditionVariableSRW;
InitializeSRWLockPtr pInitializeSRWLock;
AcquireSRWLockExclusivePtr pAcquireSRWLockExclusive;
TryAcquireSRWLockExclusivePtr pTryAcquireSRWLockExclusive;
ReleaseSRWLockExclusivePtr pReleaseSRWLockExclusive;
AcquireSRWLockSharedPtr pAcquireSRWLockShared;
TryAcquireSRWLockSharedPtr pTryAcquireSRWLockShared;
ReleaseSRWLockSharedPtr pReleaseSRWLockShared;
class InitCondVar
{
HMODULE m_kernel32;
public:
InitCondVar()
{
m_kernel32 = LoadLibrary("kernel32.dll"); // should not call LoadLibrary from DllMain, but kernel32.dll is the only one guaranteed to be loaded already
pInitializeConditionVariable = (InitializeConditionVariablePtr)GetProcAddress(m_kernel32, "InitializeConditionVariable");
pWakeConditionVariable = (WakeConditionVariablePtr)GetProcAddress(m_kernel32, "WakeConditionVariable");
pWakeAllConditionVariable = (WakeAllConditionVariablePtr)GetProcAddress(m_kernel32, "WakeAllConditionVariable");
pSleepConditionVariableSRW = (SleepConditionVariableSRWPtr)GetProcAddress(m_kernel32, "SleepConditionVariableSRW");
pInitializeSRWLock = (InitializeSRWLockPtr)GetProcAddress(m_kernel32, "InitializeSRWLock");
pAcquireSRWLockExclusive = (AcquireSRWLockExclusivePtr)GetProcAddress(m_kernel32, "AcquireSRWLockExclusive");
pTryAcquireSRWLockExclusive = (TryAcquireSRWLockExclusivePtr)GetProcAddress(m_kernel32, "TryAcquireSRWLockExclusive");
pReleaseSRWLockExclusive = (ReleaseSRWLockExclusivePtr)GetProcAddress(m_kernel32, "ReleaseSRWLockExclusive");
pAcquireSRWLockShared = (AcquireSRWLockSharedPtr)GetProcAddress(m_kernel32, "AcquireSRWLockShared");
pTryAcquireSRWLockShared = (TryAcquireSRWLockSharedPtr)GetProcAddress(m_kernel32, "TryAcquireSRWLockShared");
pReleaseSRWLockShared = (ReleaseSRWLockSharedPtr)GetProcAddress(m_kernel32, "ReleaseSRWLockShared");
}
virtual ~InitCondVar()
{
FreeLibrary(m_kernel32);
}
};
static InitCondVar s_icv;
#endif
GSThread::GSThread()
{
#ifdef _WINDOWS
m_ThreadId = 0;
m_hThread = NULL;
#else
#endif
}
GSThread::~GSThread()
{
CloseThread();
}
#ifdef _WINDOWS
DWORD WINAPI GSThread::StaticThreadProc(void* lpParam)
{
((GSThread*)lpParam)->ThreadProc();
return 0;
}
#else
void* GSThread::StaticThreadProc(void* param)
{
((GSThread*)param)->ThreadProc();
#ifndef _STD_THREAD_ // exit is done implicitly by std::thread
pthread_exit(NULL);
#endif
return NULL;
}
#endif
void GSThread::CreateThread()
{
#ifdef _WINDOWS
m_hThread = ::CreateThread(NULL, 0, StaticThreadProc, (void*)this, 0, &m_ThreadId);
#else
#ifdef _STD_THREAD_
t = new thread(StaticThreadProc,(void*)this);
#else
pthread_attr_init(&m_thread_attr);
pthread_create(&m_thread, &m_thread_attr, StaticThreadProc, (void*)this);
#endif
#endif
}
void GSThread::CloseThread()
{
#ifdef _WINDOWS
if(m_hThread != NULL)
{
if(WaitForSingleObject(m_hThread, 5000) != WAIT_OBJECT_0)
{
printf("GSdx: WARNING: GSThread Thread did not close itself in time. Assuming hung. Terminating.\n");
TerminateThread(m_hThread, 1);
}
CloseHandle(m_hThread);
m_hThread = NULL;
m_ThreadId = 0;
}
#else
#ifdef _STD_THREAD_
if(t->joinable())
{
t->join();
}
delete(t);
#else
void* ret = NULL;
pthread_join(m_thread, &ret);
pthread_attr_destroy(&m_thread_attr);
#endif
#endif
}