a558b26537
C++11 features remove the dependencies from OS specific code. Changes: - Making WorkList class to have its own mutex instead of the OS specific global one. The new mutex is the one from std library. The OS specific code is also removed. - Using the C++11 std library to handle threads in StandAlone application and enabling concurrent processing on non-windows platforms. - converting the global variable Worklist into local variable workList.
191 lines
5 KiB
C++
191 lines
5 KiB
C++
//
|
|
// Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
//
|
|
// Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
//
|
|
// Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following
|
|
// disclaimer in the documentation and/or other materials provided
|
|
// with the distribution.
|
|
//
|
|
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
|
|
//
|
|
// This file contains the Linux-specific functions
|
|
//
|
|
#include "../osinclude.h"
|
|
#include "../../../OGLCompilersDLL/InitializeDll.h"
|
|
|
|
#include <pthread.h>
|
|
#include <semaphore.h>
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <stdint.h>
|
|
|
|
namespace glslang {
|
|
|
|
//
|
|
// Thread cleanup
|
|
//
|
|
|
|
//
|
|
// Wrapper for Linux call to DetachThread. This is required as pthread_cleanup_push() expects
|
|
// the cleanup routine to return void.
|
|
//
|
|
static void DetachThreadLinux(void *)
|
|
{
|
|
DetachThread();
|
|
}
|
|
|
|
//
|
|
// Registers cleanup handler, sets cancel type and state, and executes the thread specific
|
|
// cleanup handler. This function will be called in the Standalone.cpp for regression
|
|
// testing. When OpenGL applications are run with the driver code, Linux OS does the
|
|
// thread cleanup.
|
|
//
|
|
void OS_CleanupThreadData(void)
|
|
{
|
|
#ifdef __ANDROID__
|
|
DetachThreadLinux(NULL);
|
|
#else
|
|
int old_cancel_state, old_cancel_type;
|
|
void *cleanupArg = NULL;
|
|
|
|
//
|
|
// Set thread cancel state and push cleanup handler.
|
|
//
|
|
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_cancel_state);
|
|
pthread_cleanup_push(DetachThreadLinux, (void *) cleanupArg);
|
|
|
|
//
|
|
// Put the thread in deferred cancellation mode.
|
|
//
|
|
pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &old_cancel_type);
|
|
|
|
//
|
|
// Pop cleanup handler and execute it prior to unregistering the cleanup handler.
|
|
//
|
|
pthread_cleanup_pop(1);
|
|
|
|
//
|
|
// Restore the thread's previous cancellation mode.
|
|
//
|
|
pthread_setcanceltype(old_cancel_state, NULL);
|
|
#endif
|
|
}
|
|
|
|
//
|
|
// Thread Local Storage Operations
|
|
//
|
|
inline OS_TLSIndex PthreadKeyToTLSIndex(pthread_key_t key)
|
|
{
|
|
return (OS_TLSIndex)((uintptr_t)key + 1);
|
|
}
|
|
|
|
inline pthread_key_t TLSIndexToPthreadKey(OS_TLSIndex nIndex)
|
|
{
|
|
return (pthread_key_t)((uintptr_t)nIndex - 1);
|
|
}
|
|
|
|
OS_TLSIndex OS_AllocTLSIndex()
|
|
{
|
|
pthread_key_t pPoolIndex;
|
|
|
|
//
|
|
// Create global pool key.
|
|
//
|
|
if ((pthread_key_create(&pPoolIndex, NULL)) != 0) {
|
|
assert(0 && "OS_AllocTLSIndex(): Unable to allocate Thread Local Storage");
|
|
return OS_INVALID_TLS_INDEX;
|
|
}
|
|
else
|
|
return PthreadKeyToTLSIndex(pPoolIndex);
|
|
}
|
|
|
|
bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue)
|
|
{
|
|
if (nIndex == OS_INVALID_TLS_INDEX) {
|
|
assert(0 && "OS_SetTLSValue(): Invalid TLS Index");
|
|
return false;
|
|
}
|
|
|
|
if (pthread_setspecific(TLSIndexToPthreadKey(nIndex), lpvValue) == 0)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
void* OS_GetTLSValue(OS_TLSIndex nIndex)
|
|
{
|
|
//
|
|
// This function should return 0 if nIndex is invalid.
|
|
//
|
|
assert(nIndex != OS_INVALID_TLS_INDEX);
|
|
return pthread_getspecific(TLSIndexToPthreadKey(nIndex));
|
|
}
|
|
|
|
bool OS_FreeTLSIndex(OS_TLSIndex nIndex)
|
|
{
|
|
if (nIndex == OS_INVALID_TLS_INDEX) {
|
|
assert(0 && "OS_SetTLSValue(): Invalid TLS Index");
|
|
return false;
|
|
}
|
|
|
|
//
|
|
// Delete the global pool key.
|
|
//
|
|
if (pthread_key_delete(TLSIndexToPthreadKey(nIndex)) == 0)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
namespace {
|
|
pthread_mutex_t gMutex;
|
|
}
|
|
|
|
void InitGlobalLock()
|
|
{
|
|
pthread_mutexattr_t mutexattr;
|
|
pthread_mutexattr_init(&mutexattr);
|
|
pthread_mutexattr_settype(&mutexattr, PTHREAD_MUTEX_RECURSIVE);
|
|
pthread_mutex_init(&gMutex, &mutexattr);
|
|
}
|
|
|
|
void GetGlobalLock()
|
|
{
|
|
pthread_mutex_lock(&gMutex);
|
|
}
|
|
|
|
void ReleaseGlobalLock()
|
|
{
|
|
pthread_mutex_unlock(&gMutex);
|
|
}
|
|
|
|
void OS_DumpMemoryCounters()
|
|
{
|
|
}
|
|
|
|
} // end namespace glslang
|