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[glibc.git] / nptl / tst-mutex5.c
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1 /* Copyright (C) 2002, 2003, 2004 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 <time.h>
24 #include <unistd.h>
25 #include <sys/time.h>
28 #ifndef TYPE
29 # define TYPE PTHREAD_MUTEX_NORMAL
30 #endif
33 static int
34 do_test (void)
36 pthread_mutex_t m;
37 struct timespec ts;
38 struct timeval tv;
39 struct timeval tv2;
40 int err;
41 pthread_mutexattr_t a;
43 if (pthread_mutexattr_init (&a) != 0)
45 puts ("mutexattr_init failed");
46 return 1;
49 if (pthread_mutexattr_settype (&a, TYPE) != 0)
51 puts ("mutexattr_settype failed");
52 return 1;
55 if (pthread_mutex_init (&m, &a) != 0)
57 puts ("mutex_init failed");
58 return 1;
61 if (pthread_mutexattr_destroy (&a) != 0)
63 puts ("mutexattr_destroy failed");
64 return 1;
67 if (pthread_mutex_lock (&m) != 0)
69 puts ("mutex_lock failed");
70 return 1;
73 if (pthread_mutex_trylock (&m) == 0)
75 puts ("mutex_trylock succeeded");
76 return 1;
79 gettimeofday (&tv, NULL);
80 TIMEVAL_TO_TIMESPEC (&tv, &ts);
82 ts.tv_sec += 2; /* Wait 2 seconds. */
84 err = pthread_mutex_timedlock (&m, &ts);
85 if (err == 0)
87 puts ("timedlock succeeded");
88 return 1;
90 else if (err != ETIMEDOUT)
92 printf ("timedlock error != ETIMEDOUT: %d\n", err);
93 return 1;
95 else
97 int clk_tck = sysconf (_SC_CLK_TCK);
99 gettimeofday (&tv2, NULL);
101 tv2.tv_sec -= tv.tv_sec;
102 tv2.tv_usec -= tv.tv_usec;
103 if (tv2.tv_usec < 0)
105 tv2.tv_usec += 1000000;
106 tv2.tv_sec -= 1;
109 /* Be a bit tolerant, add one CLK_TCK. */
110 tv2.tv_usec += 1000000 / clk_tck;
111 if (tv2.tv_usec >= 1000000)
113 tv2.tv_usec -= 1000000;
114 ++tv2.tv_sec;
117 if (tv2.tv_sec < 2)
119 printf ("premature timeout: %ld.%06ld difference\n",
120 tv2.tv_sec, tv2.tv_usec);
121 return 1;
125 (void) gettimeofday (&tv, NULL);
126 TIMEVAL_TO_TIMESPEC (&tv, &ts);
128 ts.tv_sec += 2; /* Wait 2 seconds. */
129 /* The following makes the ts value invalid. */
130 ts.tv_nsec += 1000000000;
132 err = pthread_mutex_timedlock (&m, &ts);
133 if (err == 0)
135 puts ("2nd timedlock succeeded");
136 return 1;
138 else if (err != EINVAL)
140 printf ("2nd timedlock error != EINVAL: %d\n", err);
141 return 1;
144 if (pthread_mutex_unlock (&m) != 0)
146 puts ("mutex_unlock failed");
147 return 1;
150 (void) gettimeofday (&tv, NULL);
151 TIMEVAL_TO_TIMESPEC (&tv, &ts);
153 ts.tv_sec += 2; /* Wait 2 seconds. */
154 if (pthread_mutex_timedlock (&m, &ts) != 0)
156 puts ("3rd timedlock failed");
159 (void) gettimeofday (&tv2, NULL);
161 /* Check that timedlock didn't delay. We use a limit of 0.1 secs. */
162 timersub (&tv2, &tv, &tv2);
163 if (tv2.tv_sec > 0 || tv2.tv_usec > 100000)
165 puts ("3rd timedlock didn't return right away");
166 return 1;
169 if (pthread_mutex_unlock (&m) != 0)
171 puts ("final mutex_unlock failed");
172 return 1;
175 if (pthread_mutex_destroy (&m) != 0)
177 puts ("mutex_destroy failed");
178 return 1;
181 return 0;
184 #define TIMEOUT 4
185 #define TEST_FUNCTION do_test ()
186 #include "../test-skeleton.c"