#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>

#include "OSAL_Mutex.h"

OMX_ERRORTYPE OSAL_MutexCreate(OMX_HANDLETYPE *mutexHandle)
{
    pthread_mutex_t *mutex;

    mutex = (pthread_mutex_t *)malloc(sizeof(pthread_mutex_t));
    if (!mutex)
        return OMX_ErrorInsufficientResources;

    if (pthread_mutex_init(mutex, NULL) != 0)
        return OMX_ErrorUndefined;

    *mutexHandle = (OMX_HANDLETYPE)mutex;
    return OMX_ErrorNone;
}

OMX_ERRORTYPE OSAL_MutexTerminate(OMX_HANDLETYPE mutexHandle)
{
    pthread_mutex_t *mutex = (pthread_mutex_t *)mutexHandle;

    if (mutex == NULL)
        return OMX_ErrorBadParameter;

    if (pthread_mutex_destroy(mutex) != 0)
        return OMX_ErrorUndefined;

    if (mutex)
        free(mutex);
    return OMX_ErrorNone;
}

OMX_ERRORTYPE OSAL_MutexLock(OMX_HANDLETYPE mutexHandle)
{
    pthread_mutex_t *mutex = (pthread_mutex_t *)mutexHandle;
    int result;

    if (mutex == NULL)
        return OMX_ErrorBadParameter;

    if (pthread_mutex_lock(mutex) != 0)
        return OMX_ErrorUndefined;

    return OMX_ErrorNone;
}

OMX_ERRORTYPE OSAL_MutexUnlock(OMX_HANDLETYPE mutexHandle)
{
    pthread_mutex_t *mutex = (pthread_mutex_t *)mutexHandle;
    int result;

    if (mutex == NULL)
        return OMX_ErrorBadParameter;

    if (pthread_mutex_unlock(mutex) != 0)
        return OMX_ErrorUndefined;

    return OMX_ErrorNone;
}