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/*
*
* Copyright 2010 Samsung Electronics S.LSI Co. LTD
*
* 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.
*/
/*
* @file SEC_OSAL_Event.c
* @brief
* @author SeungBeom Kim (sbcrux.kim@samsung.com)
* @version 1.1.0
* @history
* 2010.7.15 : Create
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <errno.h>
#include "SEC_OSAL_Memory.h"
#include "SEC_OSAL_Mutex.h"
#include "SEC_OSAL_Event.h"
#undef SEC_LOG_TAG
#define SEC_LOG_TAG "SEC_OSAL_EVENT"
#define SEC_LOG_OFF
#include "SEC_OSAL_Log.h"
OMX_ERRORTYPE SEC_OSAL_SignalCreate(OMX_HANDLETYPE *eventHandle)
{
SEC_OSAL_THREADEVENT *event;
OMX_ERRORTYPE ret = OMX_ErrorNone;
event = (SEC_OSAL_THREADEVENT *)SEC_OSAL_Malloc(sizeof(SEC_OSAL_THREADEVENT));
if (!event) {
ret = OMX_ErrorInsufficientResources;
goto EXIT;
}
SEC_OSAL_Memset(event, 0, sizeof(SEC_OSAL_THREADEVENT));
event->signal = OMX_FALSE;
ret = SEC_OSAL_MutexCreate(&event->mutex);
if (ret != OMX_ErrorNone) {
SEC_OSAL_Free(event);
goto EXIT;
}
if (pthread_cond_init(&event->condition, NULL)) {
SEC_OSAL_MutexTerminate(event->mutex);
SEC_OSAL_Free(event);
ret = OMX_ErrorUndefined;
goto EXIT;
}
*eventHandle = (OMX_HANDLETYPE)event;
ret = OMX_ErrorNone;
EXIT:
return ret;
}
OMX_ERRORTYPE SEC_OSAL_SignalTerminate(OMX_HANDLETYPE eventHandle)
{
SEC_OSAL_THREADEVENT *event = (SEC_OSAL_THREADEVENT *)eventHandle;
OMX_ERRORTYPE ret = OMX_ErrorNone;
if (!event) {
ret = OMX_ErrorBadParameter;
goto EXIT;
}
ret = SEC_OSAL_MutexLock(event->mutex);
if (ret != OMX_ErrorNone) {
ret = OMX_ErrorBadParameter;
goto EXIT;
}
if (pthread_cond_destroy(&event->condition)) {
ret = OMX_ErrorUndefined;
goto EXIT;
}
ret = SEC_OSAL_MutexUnlock(event->mutex);
if (ret != OMX_ErrorNone) {
ret = OMX_ErrorUndefined;
goto EXIT;
}
ret = SEC_OSAL_MutexTerminate(event->mutex);
if (ret != OMX_ErrorNone) {
ret = OMX_ErrorUndefined;
goto EXIT;
}
SEC_OSAL_Free(event);
EXIT:
return ret;
}
OMX_ERRORTYPE SEC_OSAL_SignalReset(OMX_HANDLETYPE eventHandle)
{
SEC_OSAL_THREADEVENT *event = (SEC_OSAL_THREADEVENT *)eventHandle;
OMX_ERRORTYPE ret = OMX_ErrorNone;
if (!event) {
ret = OMX_ErrorBadParameter;
goto EXIT;
}
ret = SEC_OSAL_MutexLock(event->mutex);
if (ret != OMX_ErrorNone) {
ret = OMX_ErrorBadParameter;
goto EXIT;
}
event->signal = OMX_FALSE;
SEC_OSAL_MutexUnlock(event->mutex);
EXIT:
return ret;
}
OMX_ERRORTYPE SEC_OSAL_SignalSet(OMX_HANDLETYPE eventHandle)
{
SEC_OSAL_THREADEVENT *event = (SEC_OSAL_THREADEVENT *)eventHandle;
OMX_ERRORTYPE ret = OMX_ErrorNone;
if (!event) {
ret = OMX_ErrorBadParameter;
goto EXIT;
}
ret = SEC_OSAL_MutexLock(event->mutex);
if (ret != OMX_ErrorNone) {
ret = OMX_ErrorBadParameter;
goto EXIT;
}
event->signal = OMX_TRUE;
pthread_cond_signal(&event->condition);
SEC_OSAL_MutexUnlock(event->mutex);
EXIT:
return ret;
}
OMX_ERRORTYPE SEC_OSAL_SignalWait(OMX_HANDLETYPE eventHandle, OMX_U32 ms)
{
SEC_OSAL_THREADEVENT *event = (SEC_OSAL_THREADEVENT *)eventHandle;
OMX_ERRORTYPE ret = OMX_ErrorNone;
struct timespec timeout;
struct timeval now;
int funcret = 0;
OMX_U32 tv_us;
FunctionIn();
if (!event) {
ret = OMX_ErrorBadParameter;
goto EXIT;
}
gettimeofday(&now, NULL);
tv_us = now.tv_usec + ms * 1000;
timeout.tv_sec = now.tv_sec + tv_us / 1000000;
timeout.tv_nsec = (tv_us % 1000000) * 1000;
ret = SEC_OSAL_MutexLock(event->mutex);
if (ret != OMX_ErrorNone) {
ret = OMX_ErrorBadParameter;
goto EXIT;
}
if (ms == 0) {
if (!event->signal)
ret = OMX_ErrorTimeout;
} else if (ms == DEF_MAX_WAIT_TIME) {
while (!event->signal)
pthread_cond_wait(&event->condition, (pthread_mutex_t *)(event->mutex));
ret = OMX_ErrorNone;
} else {
while (!event->signal) {
funcret = pthread_cond_timedwait(&event->condition, (pthread_mutex_t *)(event->mutex), &timeout);
if ((!event->signal) && (funcret == ETIMEDOUT)) {
ret = OMX_ErrorTimeout;
break;
}
}
}
SEC_OSAL_MutexUnlock(event->mutex);
EXIT:
FunctionOut();
return ret;
}
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