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.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * @APPLE_APACHE_LICENSE_HEADER_END@
21 #include "config/config.h"
23 #include <dispatch/dispatch.h>
24 #define __DISPATCH_INDIRECT__
25 #include "src/queue_private.h"
32 #include "dispatch_test.h"
37 static size_t r_count = LAPS;
38 static size_t w_count = LAPS / INTERVAL;
41 writer(void *ctxt __attribute__((unused)))
51 reader(void *ctxt __attribute__((unused)))
53 if (__sync_sub_and_fetch(&r_count, 1) == 0) {
65 test_start("Dispatch Reader/Writer Queues");
67 dq = dispatch_queue_create("com.apple.libdispatch.test_readsync", NULL);
70 dispatch_queue_set_width(dq, LONG_MAX);
72 dispatch_apply(LAPS, dispatch_get_global_queue(0, 0), ^(size_t idx) {
73 dispatch_sync_f(dq, NULL, reader);
76 dispatch_barrier_async_f(dq, NULL, writer);