/*
* Enqueue SRC in the game's command queue.
*/
public static void game_proxy_enq(Command src)
{
Command dst;
/*
* Create the queue. This is done only once during the life time
* of the program. For simplicity's sake, the queue is never
* destroyed.
*/
if (game_proxy.cmd_queue == null)
{
game_proxy.cmd_queue = CLRQueue.CLR_queue_new();
}
/*
* Add a copy of the command to the end of the queue.
*/
dst = new Command();
{
dst.CopyFrom(src);
CLRQueue.queue_enq(game_proxy.cmd_queue, dst);
}
}
public static void queue_enq(CLRQueue q, object data)
{
q.tail.data = data;
q.tail.next = CLRList.list_cons((object)null, null);
q.tail = q.tail.next;
}
public static CLRQueue CLR_queue_new()
{
CLRQueue lnew;
lnew = new CLRQueue();
lnew.head = lnew.tail = CLRList.list_cons((object)null, null);
return(lnew);
}
public static object queue_deq(CLRQueue q)
{
object data = null;
if (queue_empty(q) == 0)
{
data = q.head.data;
q.head = CLRList.list_rest(q.head);
}
return(data);
}
/*
* Dequeue and return the head element in the game's command queue.
* The element must be freed after use.
*/
public static Command game_proxy_deq()
{
return(cmd_queue != null ? (Command)CLRQueue.queue_deq(cmd_queue) : null);
}
public static int queue_empty(CLRQueue q)
{
return(q.head == q.tail ? 1 : 0);
}
public static void queue_free(CLRQueue q)
{
q.head = null;
q = null;
}