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[glibc/history.git] / nptl / tst-rwlock5.c
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1 /* Copyright (C) 2002 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 <pthread.h>
21 #include <signal.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <unistd.h>
27 static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
28 static pthread_rwlock_t r;
31 static void *
32 tf (void *arg)
34 if (pthread_rwlock_wrlock (&r) == 0)
36 puts ("child: rwlock_wrlock succeeded");
37 exit (1);
40 puts ("child: rwlock_wrlock returned");
42 exit (1);
46 static int
47 do_test (void)
49 pthread_t th;
51 if (pthread_rwlock_init (&r, NULL) != 0)
53 puts ("rwlock_init failed");
54 return 1;
57 if (pthread_rwlock_wrlock (&r) != 0)
59 puts ("rwlock_wrlock failed");
60 return 1;
63 if (pthread_mutex_lock (&m) != 0)
65 puts ("mutex_lock failed");
66 return 1;
69 /* Set an alarm for 1 second. The wrapper will expect this. */
70 alarm (1);
72 if (pthread_create (&th, NULL, tf, NULL) != 0)
74 puts ("create failed");
75 return 1;
78 /* This call should never return. */
79 pthread_mutex_lock (&m);
81 puts ("2nd mutex_lock returned");
82 return 1;
85 #define EXPECTED_SIGNAL SIGALRM
86 #define TEST_FUNCTION do_test ()
87 #include "../test-skeleton.c"