C++ (Cpp) timeout_to_timespec Examples

Example #1

File: lua-chan.c Project: lqefn/lua-chan

static struct msg_t* queue_recv(struct queue_t* q, double timeout)
{
    struct msg_t* msg = NULL;
    struct timespec ts;

    queue_lock(q);
    if (q->limit >= 0)
    {
        q->limit ++;
        pthread_cond_signal(&q->send_sig);
    }

    if (timeout > 0 && q->count <= 0)
        timeout_to_timespec(timeout, &ts);
    while (timeout != 0 && q->count <= 0)
    {
        if (timeout > 0)
        {
            if (pthread_cond_timedwait(&q->recv_sig, &q->lock, &ts) != 0)
                break;
        }
        else
            pthread_cond_wait(&q->recv_sig, &q->lock);
    }

    if (q->count > 0)
    {
        msg = q->msg_head;
        if (msg)
        {
            q->msg_head = msg->next;
            if (q->msg_head == NULL)
                q->msg_tail = NULL;
            msg->next = NULL;
        }
        q->count --;
        pthread_cond_signal(&q->send_sig);
    }

    if (q->limit > 0)
        q->limit --;

    queue_unlock(q);
    return msg;
}

Example #2

File: lua-chan.c Project: lqefn/lua-chan

static int queue_send(struct queue_t* q, struct msg_t* msg, double timeout)
{
    struct timespec ts;

    queue_lock(q);

    if (timeout > 0 && q->limit >= 0 && q->count + 1 > q->limit)
        timeout_to_timespec(timeout, &ts);
    while (timeout != 0 && q->limit >= 0 && q->count + 1 > q->limit)
    {
        if (timeout > 0)
        {
            if (pthread_cond_timedwait(&q->send_sig, &q->lock, &ts) != 0)
                break;
        }
        else
            pthread_cond_wait(&q->send_sig, &q->lock);
    }

    if (q->limit < 0 || q->count + 1 <= q->limit)
    {
        msg->next = NULL;
        if (q->msg_tail)
            q->msg_tail->next = msg;
        q->msg_tail = msg;
        if (q->msg_head == NULL)
            q->msg_head = msg;
        q->count ++;
        pthread_cond_signal(&q->recv_sig);
    }
    else
    {
        msg = NULL;
    }

    queue_unlock(q);
    return msg ? 1 : 0;
}

Example #3

File: luq_pthread.c Project: ld-test/luq

int pthread_cond_timedwait_timeout(pthread_cond_t *cond, pthread_mutex_t *mutex, int timeout){
  struct timespec ts;
  timeout_to_timespec(timeout, &ts);

  return pthread_cond_timedwait(cond, mutex, &ts);
}