1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2016 Joyent, Inc.
14 */
15
16 /*
17 * Test various C11 thread-specific storage (tss(3C)) interfaces.
18 */
19
20 #include <threads.h>
21 #include <sys/debug.h>
22
23 #define TSS_NTHREADS 128
24
25 static tss_t ct_key;
26 static int ct_count;
27 static int ct_ready;
28 static mtx_t ct_mtx;
29 static cnd_t ct_cnd;
30
31 static void
ct_tss_dtor(void * arg)32 ct_tss_dtor(void *arg)
33 {
34 VERIFY3S(mtx_lock(&ct_mtx), ==, thrd_success);
35 ct_count++;
36 VERIFY3S(mtx_unlock(&ct_mtx), ==, thrd_success);
37 }
38
39 static int
ct_tss_thr(void * arg)40 ct_tss_thr(void *arg)
41 {
42 VERIFY3P(tss_get(ct_key), ==, NULL);
43 VERIFY3S(tss_set(ct_key, arg), ==, thrd_success);
44
45 VERIFY3S(mtx_lock(&ct_mtx), ==, thrd_success);
46 ct_ready++;
47 if (ct_ready == TSS_NTHREADS) {
48 VERIFY3S(cnd_broadcast(&ct_cnd), ==, thrd_success);
49 } else {
50 while (ct_ready != TSS_NTHREADS) {
51 VERIFY3S(cnd_wait(&ct_cnd, &ct_mtx), ==, thrd_success);
52 }
53 }
54 VERIFY3S(mtx_unlock(&ct_mtx), ==, thrd_success);
55
56 VERIFY3P(tss_get(ct_key), ==, arg);
57
58 return (0);
59 }
60
61 int
main(void)62 main(void)
63 {
64 int i;
65 thrd_t threads[TSS_NTHREADS];
66
67 VERIFY3S(tss_create(&ct_key, ct_tss_dtor), ==, thrd_success);
68 VERIFY3S(mtx_init(&ct_mtx, mtx_plain), ==, thrd_success);
69 VERIFY3S(cnd_init(&ct_cnd), ==, thrd_success);
70
71 for (i = 0; i < TSS_NTHREADS; i++) {
72 VERIFY3S(thrd_create(&threads[i], ct_tss_thr,
73 (void *)(uintptr_t)(i + 100)), ==, thrd_success);
74 }
75
76 for (i = 0; i < TSS_NTHREADS; i++) {
77 VERIFY3S(thrd_join(threads[i], NULL), ==, thrd_success);
78 }
79
80 VERIFY3S(ct_count, ==, TSS_NTHREADS);
81
82 mtx_destroy(&ct_mtx);
83 cnd_destroy(&ct_cnd);
84 tss_delete(ct_key);
85
86 return (0);
87 }
88