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d614a753 | 1 | /* Copyright (C) 2002-2020 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 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
76a50749 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <pthread.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <time.h> | |
25 | ||
26 | ||
27 | static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; | |
28 | ||
29 | ||
30 | static void * | |
31 | tf (void *arg) | |
32 | { | |
33 | if (pthread_mutex_lock (&lock) != 0) | |
34 | { | |
35 | puts ("child: mutex_lock failed"); | |
36 | return NULL; | |
37 | } | |
38 | ||
39 | return (void *) 42l; | |
40 | } | |
41 | ||
42 | ||
43 | static int | |
44 | do_test (void) | |
45 | { | |
46 | pthread_t th; | |
47 | ||
48 | if (pthread_mutex_lock (&lock) != 0) | |
49 | { | |
50 | puts ("mutex_lock failed"); | |
51 | exit (1); | |
52 | } | |
53 | ||
54 | if (pthread_create (&th, NULL, tf, NULL) != 0) | |
55 | { | |
56 | puts ("mutex_create failed"); | |
57 | exit (1); | |
58 | } | |
59 | ||
60 | void *status; | |
61 | int val = pthread_tryjoin_np (th, &status); | |
62 | if (val == 0) | |
63 | { | |
64 | puts ("1st tryjoin succeeded"); | |
65 | exit (1); | |
66 | } | |
67 | else if (val != EBUSY) | |
68 | { | |
69 | puts ("1st tryjoin didn't return EBUSY"); | |
70 | exit (1); | |
71 | } | |
72 | ||
73 | if (pthread_mutex_unlock (&lock) != 0) | |
74 | { | |
75 | puts ("mutex_unlock failed"); | |
76 | exit (1); | |
77 | } | |
78 | ||
79 | while ((val = pthread_tryjoin_np (th, &status)) != 0) | |
80 | { | |
81 | if (val != EBUSY) | |
82 | { | |
83 | printf ("tryjoin returned %s (%d), expected only 0 or EBUSY\n", | |
84 | strerror (val), val); | |
85 | exit (1); | |
86 | } | |
87 | ||
88 | /* Delay minimally. */ | |
89 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; | |
90 | nanosleep (&ts, NULL); | |
91 | } | |
92 | ||
93 | if (status != (void *) 42l) | |
94 | { | |
95 | printf ("return value %p, expected %p\n", status, (void *) 42l); | |
96 | exit (1); | |
97 | } | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
102 | #define TEST_FUNCTION do_test () | |
103 | #include "../test-skeleton.c" |