static int
owqueue_signal_read
(
OWQueue * queue
)
{
OWQueueEvent event = 0 ;
if (pthread_mutex_lock (& queue->state_mutex))
{
return -1 ;
}
if (owqueue_is_empty (queue))
{
queue->is_empty = 1 ;
event |= OWQUEUE_EMPTY ;
}
if (queue->space_needed <= owqueue_get_available_space (queue))
{
queue->space_needed = 0 ;
event |= OWQUEUE_SPACE_AVAILABLE ;
}
if (event != 0 && queue->callback_function != NULL)
{
queue->callback_function (queue, event, (void *) queue->callback_user_data) ;
}
if (pthread_mutex_unlock (& queue->state_mutex))
{
return -1 ;
}
return 0 ;
}
int
owsl_socket_is_readable
(
OWSLSocketInfo * socket
)
{
return
(
(
socket->type_info->mode == OWSL_MODE_DATAGRAM
||
socket->connected > 0
||
socket->listening > 0
)
&&
(
socket->in_queue == NULL
||
! owqueue_is_empty (socket->in_queue)
)
&&
(
socket->type_info->is_readable == NULL
||
socket->type_info->is_readable (socket)
)
) ;
}
static int
owqueue_signal_empty
(
OWQueue * queue
)
{
if (pthread_mutex_lock (& queue->state_mutex))
{
return -1 ;
}
if (owqueue_is_empty (queue))
{
queue->is_empty = 1 ;
if (queue->callback_function != NULL)
{
queue->callback_function (queue, OWQUEUE_EMPTY, (void *) queue->callback_user_data) ;
}
}
if (pthread_mutex_unlock (& queue->state_mutex))
{
return -1 ;
}
return 0 ;
}