Optimizations from GMP.
[glibc.git] / nptl / tst-cond14.c
blob106fa8c2195ce5c0c05e36de3430deab4a811211
1 /* Copyright (C) 2004 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
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 <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <unistd.h>
27 static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
28 static pthread_mutex_t mut = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
29 static pthread_mutex_t mut2 = PTHREAD_MUTEX_INITIALIZER;
31 static void *
32 tf (void *p)
34 if (pthread_mutex_lock (&mut) != 0)
36 printf ("%s: 1st mutex_lock failed\n", __func__);
37 exit (1);
39 if (pthread_mutex_lock (&mut) != 0)
41 printf ("%s: 2nd mutex_lock failed\n", __func__);
42 exit (1);
44 if (pthread_mutex_lock (&mut) != 0)
46 printf ("%s: 3rd mutex_lock failed\n", __func__);
47 exit (1);
50 if (pthread_mutex_unlock (&mut2) != 0)
52 printf ("%s: mutex_unlock failed\n", __func__);
53 exit (1);
56 if (pthread_cond_wait (&cond, &mut) != 0)
58 printf ("%s: cond_wait failed\n", __func__);
59 exit (1);
62 puts ("child: done");
64 return NULL;
68 static int
69 do_test (void)
71 if (pthread_mutex_lock (&mut2) != 0)
73 puts ("1st mutex_lock failed");
74 return 1;
77 puts ("parent: create child");
79 pthread_t th;
80 int err = pthread_create (&th, NULL, tf, NULL);
81 if (err != 0)
83 printf ("parent: cannot create thread: %s\n", strerror (err));
84 return 1;
87 /* We have to synchronize with the child. */
88 if (pthread_mutex_lock (&mut2) != 0)
90 puts ("2nd mutex_lock failed");
91 return 1;
94 /* Give the child to reach to pthread_cond_wait. */
95 sleep (1);
97 if (pthread_cond_signal (&cond) != 0)
99 puts ("cond_signal failed");
100 return 1;
103 err = pthread_join (th, NULL);
104 if (err != 0)
106 printf ("parent: failed to join: %s\n", strerror (err));
107 return 1;
110 puts ("done");
112 return 0;
116 #define TEST_FUNCTION do_test ()
117 #define TIMEOUT 3
118 #include "../test-skeleton.c"