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/* ************************************************************************
* Copyright 2013 Advanced Micro Devices, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ************************************************************************/
#include <stdlib.h>
#include <clBLAS.h>
#include <mutex.h>
#include <events.h>
static const size_t ALLOCATION_STEP = 100;
static mutex_t *lock = NULL;
static cl_event *decomposeEvents = NULL;
static size_t numDecomposeEvents = 0;
static size_t maxDecomposeEvents = 0;
void
decomposeEventsSetup(void)
{
lock = mutexInit();
}
void
decomposeEventsTeardown(void)
{
mutexLock(lock);
if (decomposeEvents != NULL) {
free(decomposeEvents);
}
decomposeEvents = NULL;
numDecomposeEvents = 0;
maxDecomposeEvents = 0;
mutexDestroy(lock);
lock = NULL;
}
cl_event*
decomposeEventsAlloc(void)
{
cl_event* e;
mutexLock(lock);
if (numDecomposeEvents == maxDecomposeEvents) {
e = realloc(decomposeEvents,
(maxDecomposeEvents + ALLOCATION_STEP) * sizeof(cl_event));
if (e == NULL) {
mutexUnlock(lock);
return NULL;
}
decomposeEvents = e;
maxDecomposeEvents += ALLOCATION_STEP;
}
e = &(decomposeEvents[numDecomposeEvents++]);
mutexUnlock(lock);
return e;
}
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