Function AllocateDataQueuePacket

deps/SDL2/src/SDL_dataqueue.c:140–171

}

static SDL_DataQueuePacket *
AllocateDataQueuePacket(SDL_DataQueue *queue)
{
    SDL_DataQueuePacket *packet;

    SDL_assert(queue != NULL);

    packet = queue->pool;
    if (packet != NULL) {
        /* we have one available in the pool. */
        queue->pool = packet->next;
    } else {
        /* Have to allocate a new one! */
        packet = (SDL_DataQueuePacket *) SDL_malloc(sizeof (SDL_DataQueuePacket) + queue->packet_size);
        if (packet == NULL) {
            return NULL;
        }
    }

    packet->datalen = 0;
    packet->startpos = 0;
    packet->next = NULL;
                
    SDL_assert((queue->head != NULL) == (queue->queued_bytes != 0));
    if (queue->tail == NULL) {
        queue->head = packet;
    } else {
        queue->tail->next = packet;
    }
    queue->tail = packet;
    return packet;
}


int