Function hb_fifo_get

libhb/fifo.c:1299–1321

Pulls a packet out of this FIFO, or returns NULL if no packet is available.

// Pulls a packet out of this FIFO, or returns NULL if no packet is available.
hb_buffer_t * hb_fifo_get( hb_fifo_t * f )
{
    hb_buffer_t * b;

    hb_lock( f->lock );
    if( f->size < 1 )
    {
        hb_unlock( f->lock );
        return NULL;
    }
    b         = f->first;
    f->first  = b->next;
    b->next   = NULL;
    f->size  -= 1;
    if( f->wait_full && f->size == f->capacity - f->thresh )
    {
        f->wait_full = 0;
        hb_cond_signal( f->cond_full );
    }
    hb_unlock( f->lock );

    return b;
}

hb_buffer_t * hb_fifo_see_wait( hb_fifo_t * f )
{