1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*
* 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 <unistd.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "dispatch_test.h"
#ifndef NSEC_PER_SEC
#define NSEC_PER_SEC 1000000000
#endif
dispatch_group_t
create_group(size_t count, int delay)
{
size_t i;
dispatch_group_t group = dispatch_group_create();
for (i = 0; i < count; ++i) {
dispatch_queue_t queue = dispatch_queue_create(NULL, NULL);
assert(queue);
dispatch_group_async(group, queue, ^{
if (delay) {
fprintf(stderr, "sleeping...\n");
sleep(delay);
fprintf(stderr, "done.\n");
}
});
dispatch_release(queue);
}
return group;
}
int
main(void)
{
long res;
test_start("Dispatch Group");
dispatch_group_t group;
group = create_group(100, 0);
test_ptr_notnull("dispatch_group_async", group);
dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
// should be OK to re-use a group
dispatch_group_async(group, dispatch_get_global_queue(0, 0), ^{});
dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
dispatch_release(group);
group = NULL;
group = create_group(3, 7);
test_ptr_notnull("dispatch_group_async", group);
res = dispatch_group_wait(group, dispatch_time(DISPATCH_TIME_NOW, 5ull * NSEC_PER_SEC));
test_long("dispatch_group_wait", !res, 0);
// retry after timeout (this time succeed)
res = dispatch_group_wait(group, dispatch_time(DISPATCH_TIME_NOW, 5ull * NSEC_PER_SEC));
test_long("dispatch_group_wait", res, 0);
dispatch_release(group);
group = NULL;
group = create_group(100, 0);
test_ptr_notnull("dispatch_group_async", group);
dispatch_group_notify(group, dispatch_get_main_queue(), ^{
dispatch_queue_t m = dispatch_get_main_queue();
dispatch_queue_t c = dispatch_get_current_queue();
test_ptr("Notification Received", m, c);
test_stop();
});
dispatch_release(group);
group = NULL;
dispatch_main();
return 0;
}
|
