Update.
[glibc.git] / nptl / tst-mutex3.c
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1 /* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <errno.h>
21 #include <pthread.h>
22 #include <stdio.h>
23 #include <stdlib.h>
26 static pthread_mutex_t m;
27 static pthread_barrier_t b;
30 static void *
31 tf (void *arg)
33 int e = pthread_mutex_unlock (&m);
34 if (e == 0)
36 puts ("1st mutex_unlock in child succeeded");
37 exit (1);
39 if (e != EPERM)
41 puts ("1st mutex_unlock in child didn't return EPERM");
42 exit (1);
45 e = pthread_mutex_trylock (&m);
46 if (e == 0)
48 puts ("mutex_trylock in second thread succeeded");
49 exit (1);
51 if (e != EBUSY)
53 puts ("mutex_trylock returned wrong value");
54 exit (1);
57 e = pthread_barrier_wait (&b);
58 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
60 puts ("barrier_wait failed");
61 exit (1);
64 e = pthread_barrier_wait (&b);
65 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
67 puts ("barrier_wait failed");
68 exit (1);
71 e = pthread_mutex_unlock (&m);
72 if (e == 0)
74 puts ("2nd mutex_unlock in child succeeded");
75 exit (1);
77 if (e != EPERM)
79 puts ("2nd mutex_unlock in child didn't return EPERM");
80 exit (1);
83 if (pthread_mutex_trylock (&m) != 0)
85 puts ("2nd mutex_trylock in second thread failed");
86 exit (1);
89 if (pthread_mutex_unlock (&m) != 0)
91 puts ("3rd mutex_unlock in second thread failed");
92 exit (1);
95 return NULL;
99 static int
100 do_test (void)
102 pthread_mutexattr_t a;
104 if (pthread_mutexattr_init (&a) != 0)
106 puts ("mutexattr_init failed");
107 return 1;
110 if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_RECURSIVE) != 0)
112 puts ("mutexattr_settype failed");
113 return 1;
116 if (pthread_mutex_init (&m, &a) != 0)
118 puts ("mutex_init failed");
119 return 1;
122 if (pthread_barrier_init (&b, NULL, 2) != 0)
124 puts ("barrier_init failed");
125 return 1;
128 if (pthread_mutex_lock (&m) != 0)
130 puts ("mutex_lock failed");
131 return 1;
134 if (pthread_mutex_lock (&m) != 0)
136 puts ("2nd mutex_lock failed");
137 return 1;
140 if (pthread_mutex_trylock (&m) != 0)
142 puts ("1st trylock failed");
143 return 1;
146 if (pthread_mutex_unlock (&m) != 0)
148 puts ("mutex_unlock failed");
149 return 1;
152 if (pthread_mutex_unlock (&m) != 0)
154 puts ("2nd mutex_unlock failed");
155 return 1;
158 pthread_t th;
159 if (pthread_create (&th, NULL, tf, NULL) != 0)
161 puts ("create failed");
162 return 1;
165 int e = pthread_barrier_wait (&b);
166 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
168 puts ("barrier_wait failed");
169 return 1;
172 if (pthread_mutex_unlock (&m) != 0)
174 puts ("3rd mutex_unlock failed");
175 return 1;
178 e = pthread_mutex_unlock (&m);
179 if (e == 0)
181 puts ("4th mutex_unlock succeeded");
182 return 1;
184 if (e != EPERM)
186 puts ("4th mutex_unlock didn't return EPERM");
187 return 1;
190 e = pthread_barrier_wait (&b);
191 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
193 puts ("barrier_wait failed");
194 return 1;
197 if (pthread_join (th, NULL) != 0)
199 puts ("join failed");
200 return 1;
203 if (pthread_barrier_destroy (&b) != 0)
205 puts ("barrier_destroy failed");
206 return 1;
209 if (pthread_mutex_destroy (&m) != 0)
211 puts ("mutex_destroy failed");
212 return 1;
215 if (pthread_mutexattr_destroy (&a) != 0)
217 puts ("mutexattr_destroy failed");
218 return 1;
221 return 0;
224 #define TEST_FUNCTION do_test ()
225 #include "../test-skeleton.c"