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/*
* Copyright (c) 2008-2009 Apple Inc. All rights reserved.
*
* @APPLE_APACHE_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @APPLE_APACHE_LICENSE_HEADER_END@
*/
#include "config/config.h"
#include <dispatch/dispatch.h>
#include <stdio.h>
#include "dispatch_test.h"
uint32_t count = 0;
const uint32_t final = 1000000; // 10M
void pingpongloop(dispatch_group_t group, dispatch_queue_t ping, dispatch_queue_t pong, size_t counter) {
//printf("[%p] %s: %lu\n", (void*)(uintptr_t)pthread_self(), dispatch_queue_get_label(dispatch_get_current_queue()), counter);
if (counter < final) {
dispatch_group_async(group, pong, ^{ pingpongloop(group, pong, ping, counter+1); });
} else {
count = counter;
}
}
int main(void) {
test_start("Dispatch Ping Pong");
dispatch_queue_t ping = dispatch_queue_create("ping", NULL);
test_ptr_notnull("dispatch_queue_create(ping)", ping);
dispatch_queue_t pong = dispatch_queue_create("pong", NULL);
test_ptr_notnull("dispatch_queue_create(pong)", pong);
dispatch_group_t group = dispatch_group_create();
test_ptr_notnull("dispatch_group_create", group);
pingpongloop(group, ping, pong, 0);
dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
test_long("count", count, final);
test_stop();
return 0;
}
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