#include "sys_config.h"
#include "typesdef.h"
#include "errno.h"
#include "osal/semaphore.h"
#include "osal/task.h"
#include "osal/string.h"
#include "osal/timer.h"
#include "osal/mutex.h"
#include "lib/common/rbuffer.h"
#include "lib/posix/pthread.h"

#ifdef TXWSDK_POSIX

int sem_destroy(sem_t *sem)
{
    struct os_semaphore *s = (struct os_semaphore *)(*sem);
    if (os_sema_del(s) < 0) {
        return -1;
    }
    os_free(s);
    return 0;
}

int sem_getvalue(sem_t *sem, int *sval)
{
    *sval = os_sema_count((struct os_semaphore *)(*sem));
    return 0;
}

int sem_init(sem_t *sem, int pshared, unsigned value)
{
    struct os_semaphore *s;

    if (sem == NULL) {
        return -EINVAL;
    }

    s = (struct os_semaphore *)os_zalloc(sizeof(struct os_semaphore));
    if (s == NULL) {
        pthread_err("alloc fail\r\n");
        return -ENOMEM;
    }

    if (os_sema_init(s, value) < 0) {
        os_free(s);
        return -1;
    }
    *sem = (sem_t)s;
    return 0;
}

int sem_post(sem_t *sem)
{
    return os_sema_up((struct os_semaphore *)(*sem));
}

int sem_timedwait(sem_t *sem, const struct timespec *abstime)
{
    return (os_sema_down((struct os_semaphore *)(*sem), pthread_timespec_delta(abstime)) == 1 ? 0 : -1);
}

int sem_trywait(sem_t *sem)
{
    return (os_sema_down((struct os_semaphore *)(*sem), 0) == 1 ? 0 : -1);
}

int sem_wait(sem_t *sem)
{
    return (os_sema_down((struct os_semaphore *)(*sem), osWaitForever) == 1 ? 0 : -1);
}

#endif