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1/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
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
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 <time.h>
25
26
27static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
28
29
30static void *
31tf (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
43static int
44do_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"
104

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