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1/* Copyright (C) 2004-2019 Free Software Foundation, Inc.
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
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
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
28static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
29static pthread_mutex_t mut = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
30static pthread_mutex_t mut2 = PTHREAD_MUTEX_INITIALIZER;
31
32static void *
33tf (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
92static int
93do_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#include "../test-skeleton.c"
159

Warning: That file was not part of the compilation database. It may have many parsing errors.