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d4697bc9 | 1 | /* Copyright (C) 2004-2014 Free Software Foundation, Inc. |
4c771a3b UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@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 | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
4c771a3b UD |
18 | |
19 | #include <errno.h> | |
20 | #include <pthread.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <unistd.h> | |
25 | #include <sys/time.h> | |
26 | ||
27 | ||
28 | static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; | |
29 | static pthread_mutex_t mut = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; | |
30 | static pthread_mutex_t mut2 = PTHREAD_MUTEX_INITIALIZER; | |
31 | ||
32 | static void * | |
33 | tf (void *p) | |
34 | { | |
35 | if (pthread_mutex_lock (&mut) != 0) | |
36 | { | |
37 | printf ("%s: 1st mutex_lock failed\n", __func__); | |
38 | exit (1); | |
39 | } | |
40 | if (pthread_mutex_lock (&mut) != 0) | |
41 | { | |
42 | printf ("%s: 2nd mutex_lock failed\n", __func__); | |
43 | exit (1); | |
44 | } | |
45 | if (pthread_mutex_lock (&mut) != 0) | |
46 | { | |
47 | printf ("%s: 3rd mutex_lock failed\n", __func__); | |
48 | exit (1); | |
49 | } | |
50 | ||
51 | if (pthread_mutex_unlock (&mut2) != 0) | |
52 | { | |
53 | printf ("%s: mutex_unlock failed\n", __func__); | |
54 | exit (1); | |
55 | } | |
56 | ||
57 | struct timeval tv; | |
58 | gettimeofday (&tv, NULL); | |
59 | struct timespec ts; | |
60 | TIMEVAL_TO_TIMESPEC (&tv, &ts); | |
61 | ts.tv_sec += p == NULL ? 100 : 1; | |
62 | ||
63 | int err = pthread_cond_timedwait (&cond, &mut, &ts); | |
64 | if ((err != 0 && p == NULL) || (err != ETIMEDOUT && p != NULL)) | |
65 | { | |
66 | printf ("%s: cond_wait failed\n", __func__); | |
67 | exit (1); | |
68 | } | |
69 | ||
70 | if (pthread_mutex_unlock (&mut) != 0) | |
71 | { | |
72 | printf ("%s: 1st mutex_unlock failed\n", __func__); | |
73 | exit (1); | |
74 | } | |
75 | if (pthread_mutex_unlock (&mut) != 0) | |
76 | { | |
77 | printf ("%s: 2nd mutex_unlock failed\n", __func__); | |
78 | exit (1); | |
79 | } | |
80 | if (pthread_mutex_unlock (&mut) != 0) | |
81 | { | |
82 | printf ("%s: 3rd mutex_unlock failed\n", __func__); | |
83 | exit (1); | |
84 | } | |
85 | ||
86 | puts ("child: done"); | |
87 | ||
88 | return NULL; | |
89 | } | |
90 | ||
91 | ||
92 | static int | |
93 | do_test (void) | |
94 | { | |
95 | if (pthread_mutex_lock (&mut2) != 0) | |
96 | { | |
97 | puts ("1st mutex_lock failed"); | |
98 | return 1; | |
99 | } | |
100 | ||
101 | puts ("parent: create 1st child"); | |
102 | ||
103 | pthread_t th; | |
104 | int err = pthread_create (&th, NULL, tf, NULL); | |
105 | if (err != 0) | |
106 | { | |
107 | printf ("parent: cannot 1st create thread: %s\n", strerror (err)); | |
108 | return 1; | |
109 | } | |
110 | ||
111 | /* We have to synchronize with the child. */ | |
112 | if (pthread_mutex_lock (&mut2) != 0) | |
113 | { | |
114 | puts ("2nd mutex_lock failed"); | |
115 | return 1; | |
116 | } | |
117 | ||
118 | /* Give the child to reach to pthread_cond_wait. */ | |
119 | sleep (1); | |
120 | ||
121 | if (pthread_cond_signal (&cond) != 0) | |
122 | { | |
123 | puts ("cond_signal failed"); | |
124 | return 1; | |
125 | } | |
126 | ||
127 | err = pthread_join (th, NULL); | |
128 | if (err != 0) | |
129 | { | |
130 | printf ("parent: failed to join: %s\n", strerror (err)); | |
131 | return 1; | |
132 | } | |
133 | ||
134 | ||
135 | puts ("parent: create 2nd child"); | |
136 | ||
137 | err = pthread_create (&th, NULL, tf, (void *) 1l); | |
138 | if (err != 0) | |
139 | { | |
140 | printf ("parent: cannot 2nd create thread: %s\n", strerror (err)); | |
141 | return 1; | |
142 | } | |
143 | ||
144 | err = pthread_join (th, NULL); | |
145 | if (err != 0) | |
146 | { | |
147 | printf ("parent: failed to join: %s\n", strerror (err)); | |
148 | return 1; | |
149 | } | |
150 | ||
151 | puts ("done"); | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
156 | ||
157 | #define TEST_FUNCTION do_test () | |
158 | #define TIMEOUT 6 | |
159 | #include "../test-skeleton.c" |