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1 | /* Copyright (C) 2004-2017 Free Software Foundation, Inc. | |
2 | This file is part of the GNU C Library. | |
3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <errno.h> | |
20 | #include <limits.h> | |
21 | #include <pthread.h> | |
22 | #include <stdbool.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
25 | #include <unistd.h> | |
26 | ||
27 | pthread_cond_t cv = PTHREAD_COND_INITIALIZER; | |
28 | pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; | |
29 | bool n, exiting; | |
30 | FILE *f; | |
31 | int count; | |
32 | ||
33 | void * | |
34 | tf (void *dummy) | |
35 | { | |
36 | bool loop = true; | |
37 | ||
38 | while (loop) | |
39 | { | |
40 | pthread_mutex_lock (&lock); | |
41 | while (n && !exiting) | |
42 | pthread_cond_wait (&cv, &lock); | |
43 | n = true; | |
44 | pthread_mutex_unlock (&lock); | |
45 | ||
46 | fputs (".", f); | |
47 | ||
48 | pthread_mutex_lock (&lock); | |
49 | n = false; | |
50 | if (exiting) | |
51 | loop = false; | |
52 | #ifdef UNLOCK_AFTER_BROADCAST | |
53 | pthread_cond_broadcast (&cv); | |
54 | pthread_mutex_unlock (&lock); | |
55 | #else | |
56 | pthread_mutex_unlock (&lock); | |
57 | pthread_cond_broadcast (&cv); | |
58 | #endif | |
59 | } | |
60 | ||
61 | return NULL; | |
62 | } | |
63 | ||
64 | int | |
65 | do_test (void) | |
66 | { | |
67 | f = fopen ("/dev/null", "w"); | |
68 | if (f == NULL) | |
69 | { | |
70 | printf ("couldn't open /dev/null, %m\n"); | |
71 | return 1; | |
72 | } | |
73 | ||
74 | count = sysconf (_SC_NPROCESSORS_ONLN); | |
75 | if (count <= 0) | |
76 | count = 1; | |
77 | count *= 4; | |
78 | ||
79 | pthread_t th[count]; | |
80 | pthread_attr_t attr; | |
81 | int i, ret, sz; | |
82 | pthread_attr_init (&attr); | |
83 | sz = sysconf (_SC_PAGESIZE); | |
84 | if (sz < PTHREAD_STACK_MIN) | |
85 | sz = PTHREAD_STACK_MIN; | |
86 | pthread_attr_setstacksize (&attr, sz); | |
87 | for (i = 0; i < count; ++i) | |
88 | if ((ret = pthread_create (&th[i], &attr, tf, NULL)) != 0) | |
89 | { | |
90 | errno = ret; | |
91 | printf ("pthread_create %d failed: %m\n", i); | |
92 | return 1; | |
93 | } | |
94 | ||
95 | struct timespec ts = { .tv_sec = 20, .tv_nsec = 0 }; | |
96 | while (nanosleep (&ts, &ts) != 0); | |
97 | ||
98 | pthread_mutex_lock (&lock); | |
99 | exiting = true; | |
100 | pthread_mutex_unlock (&lock); | |
101 | ||
102 | for (i = 0; i < count; ++i) | |
103 | pthread_join (th[i], NULL); | |
104 | ||
105 | fclose (f); | |
106 | return 0; | |
107 | } | |
108 | ||
109 | #define TEST_FUNCTION do_test () | |
110 | #define TIMEOUT 40 | |
111 | #include "../test-skeleton.c" |