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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 <pthread.h> | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <unistd.h> | |
24 | ||
25 | ||
26 | static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; | |
27 | static pthread_mutex_t mut = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; | |
28 | static pthread_mutex_t mut2 = PTHREAD_MUTEX_INITIALIZER; | |
29 | ||
30 | static void * | |
31 | tf (void *p) | |
32 | { | |
33 | if (pthread_mutex_lock (&mut) != 0) | |
34 | { | |
35 | printf ("%s: 1st mutex_lock failed\n", __func__); | |
36 | exit (1); | |
37 | } | |
38 | if (pthread_mutex_lock (&mut) != 0) | |
39 | { | |
40 | printf ("%s: 2nd mutex_lock failed\n", __func__); | |
41 | exit (1); | |
42 | } | |
43 | if (pthread_mutex_lock (&mut) != 0) | |
44 | { | |
45 | printf ("%s: 3rd mutex_lock failed\n", __func__); | |
46 | exit (1); | |
47 | } | |
48 | ||
49 | if (pthread_mutex_unlock (&mut2) != 0) | |
50 | { | |
51 | printf ("%s: mutex_unlock failed\n", __func__); | |
52 | exit (1); | |
53 | } | |
54 | ||
55 | if (pthread_cond_wait (&cond, &mut) != 0) | |
56 | { | |
57 | printf ("%s: cond_wait failed\n", __func__); | |
58 | exit (1); | |
59 | } | |
60 | ||
61 | puts ("child: done"); | |
62 | ||
63 | return NULL; | |
64 | } | |
65 | ||
66 | ||
67 | static int | |
68 | do_test (void) | |
69 | { | |
70 | if (pthread_mutex_lock (&mut2) != 0) | |
71 | { | |
72 | puts ("1st mutex_lock failed"); | |
73 | return 1; | |
74 | } | |
75 | ||
76 | puts ("parent: create child"); | |
77 | ||
78 | pthread_t th; | |
79 | int err = pthread_create (&th, NULL, tf, NULL); | |
80 | if (err != 0) | |
81 | { | |
82 | printf ("parent: cannot create thread: %s\n", strerror (err)); | |
83 | return 1; | |
84 | } | |
85 | ||
86 | /* We have to synchronize with the child. */ | |
87 | if (pthread_mutex_lock (&mut2) != 0) | |
88 | { | |
89 | puts ("2nd mutex_lock failed"); | |
90 | return 1; | |
91 | } | |
92 | ||
93 | /* Give the child to reach to pthread_cond_wait. */ | |
94 | sleep (1); | |
95 | ||
96 | if (pthread_cond_signal (&cond) != 0) | |
97 | { | |
98 | puts ("cond_signal failed"); | |
99 | return 1; | |
100 | } | |
101 | ||
102 | err = pthread_join (th, NULL); | |
103 | if (err != 0) | |
104 | { | |
105 | printf ("parent: failed to join: %s\n", strerror (err)); | |
106 | return 1; | |
107 | } | |
108 | ||
109 | puts ("done"); | |
110 | ||
111 | return 0; | |
112 | } | |
113 | ||
114 | ||
115 | #define TEST_FUNCTION do_test () | |
116 | #define TIMEOUT 3 | |
117 | #include "../test-skeleton.c" |