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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 <pthread.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <time.h>
23
24
25#define N 100
26
27static pthread_once_t once = PTHREAD_ONCE_INIT;
28
29static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
30static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
31
32static pthread_barrier_t bar;
33
34static int global;
35static int cl_called;
36
37static void
38once_handler1 (void)
39{
40 if (pthread_mutex_lock (&mut) != 0)
41 {
42 puts ("once_handler1: mutex_lock failed");
43 exit (1);
44 }
45 puts ("once_handler1: locked");
46
47 int r = pthread_barrier_wait (&bar);
48 if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
49 {
50 puts ("once_handler1: barrier_wait failed");
51 exit (1);
52 }
53
54 puts ("once_handler1: going to wait on cond");
55
56 pthread_cond_wait (&cond, &mut);
57
58 /* We should never get here. */
59 exit (42);
60}
61
62static void
63once_handler2 (void)
64{
65 global = 1;
66}
67
68
69static void
70cl (void *arg)
71{
72 cl_called = 1;
73}
74
75
76static void *
77tf (void *arg)
78{
79 pthread_cleanup_push (cl, NULL)
80
81 pthread_once (&once, once_handler1);
82
83 pthread_cleanup_pop (0);
84
85 /* We should never get here. */
86 puts ("pthread_once in tf returned");
87 exit (1);
88}
89
90
91static int
92do_test (void)
93{
94 pthread_t th;
95
96 if (pthread_barrier_init (&bar, NULL, 2) != 0)
97 {
98 puts ("barrier_init failed");
99 return 1;
100 }
101
102 if (pthread_create (&th, NULL, tf, NULL) != 0)
103 {
104 puts ("first create failed");
105 return 1;
106 }
107
108 int r = pthread_barrier_wait (&bar);
109 if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
110 {
111 puts ("barrier_wait failed");
112 return 1;
113 }
114
115 if (pthread_mutex_lock (&mut) != 0)
116 {
117 puts ("mutex_lock failed");
118 return 1;
119 }
120 /* We unlock the mutex so that we catch the case where the pthread_cond_wait
121 call incorrectly resumes and tries to get the mutex. */
122 if (pthread_mutex_unlock (&mut) != 0)
123 {
124 puts ("mutex_unlock failed");
125 return 1;
126 }
127
128 /* Cancel the thread. */
129 puts ("going to cancel");
130 if (pthread_cancel (th) != 0)
131 {
132 puts ("cancel failed");
133 return 1;
134 }
135
136 void *result;
137 pthread_join (th, &result);
138 if (result != PTHREAD_CANCELED)
139 {
140 puts ("join didn't return PTHREAD_CANCELED");
141 return 1;
142 }
143 puts ("joined successfully");
144
145 printf ("once = %d\n", *(int *) &once);
146
147 if (cl_called != 1)
148 {
149 puts ("cleanup handler not called");
150 return 1;
151 }
152
153 pthread_once (&once, once_handler2);
154
155 if (global != 1)
156 {
157 puts ("global still 0");
158 return 1;
159 }
160
161 return 0;
162}
163
164#define TEST_FUNCTION do_test ()
165#include "../test-skeleton.c"
166

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