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b168057a | 1 | /* Copyright (C) 2002-2015 Free Software Foundation, Inc. |
76a50749 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. | |
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/>. */ | |
76a50749 UD |
18 | |
19 | #include <error.h> | |
20 | #include <pthread.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | ||
24 | ||
25 | static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; | |
26 | static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; | |
27 | ||
28 | ||
29 | static void * | |
30 | tf (void *p) | |
31 | { | |
32 | int err; | |
33 | ||
34 | err = pthread_mutex_lock (&mut); | |
35 | if (err != 0) | |
36 | error (EXIT_FAILURE, err, "child: cannot get mutex"); | |
37 | ||
38 | puts ("child: got mutex; signalling"); | |
39 | ||
40 | pthread_cond_signal (&cond); | |
41 | ||
42 | puts ("child: unlock"); | |
43 | ||
44 | err = pthread_mutex_unlock (&mut); | |
45 | if (err != 0) | |
46 | error (EXIT_FAILURE, err, "child: cannot unlock"); | |
47 | ||
48 | puts ("child: done"); | |
49 | ||
50 | return NULL; | |
51 | } | |
52 | ||
53 | ||
54 | static int | |
55 | do_test (void) | |
56 | { | |
57 | pthread_t th; | |
58 | int err; | |
59 | ||
60 | printf ("&cond = %p\n&mut = %p\n", &cond, &mut); | |
61 | ||
62 | puts ("parent: get mutex"); | |
63 | ||
64 | err = pthread_mutex_lock (&mut); | |
65 | if (err != 0) | |
66 | error (EXIT_FAILURE, err, "parent: cannot get mutex"); | |
67 | ||
68 | puts ("parent: create child"); | |
69 | ||
70 | err = pthread_create (&th, NULL, tf, NULL); | |
71 | if (err != 0) | |
72 | error (EXIT_FAILURE, err, "parent: cannot create thread"); | |
73 | ||
74 | puts ("parent: wait for condition"); | |
75 | ||
76 | err = pthread_cond_wait (&cond, &mut); | |
77 | if (err != 0) | |
78 | error (EXIT_FAILURE, err, "parent: cannot wait fir signal"); | |
79 | ||
80 | puts ("parent: got signal"); | |
81 | ||
82 | err = pthread_join (th, NULL); | |
83 | if (err != 0) | |
84 | error (EXIT_FAILURE, err, "parent: failed to join"); | |
85 | ||
86 | puts ("done"); | |
87 | ||
88 | return 0; | |
89 | } | |
90 | ||
91 | ||
92 | #define TEST_FUNCTION do_test () | |
93 | #include "../test-skeleton.c" |