2 * Copyright (c) 2008-2009 Apple Inc. All rights reserved.
4 * @APPLE_APACHE_LICENSE_HEADER_START@
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
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21 #include "config/config.h"
23 #include <dispatch/dispatch.h>
26 #include "dispatch_test.h"
29 const uint32_t final = 1000000; // 10M
31 void pingpongloop(dispatch_group_t group, dispatch_queue_t ping, dispatch_queue_t pong, size_t counter) {
32 //printf("[%p] %s: %lu\n", (void*)(uintptr_t)pthread_self(), dispatch_queue_get_label(dispatch_get_current_queue()), counter);
33 if (counter < final) {
34 dispatch_group_async(group, pong, ^{ pingpongloop(group, pong, ping, counter+1); });
42 test_start("Dispatch Ping Pong");
44 dispatch_queue_t ping = dispatch_queue_create("ping", NULL);
45 test_ptr_notnull("dispatch_queue_create(ping)", ping);
46 dispatch_queue_t pong = dispatch_queue_create("pong", NULL);
47 test_ptr_notnull("dispatch_queue_create(pong)", pong);
49 dispatch_group_t group = dispatch_group_create();
50 test_ptr_notnull("dispatch_group_create", group);
52 pingpongloop(group, ping, pong, 0);
53 dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
55 test_long("count", count, final);