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-rw-r--r--test/nptl/tst-mutex2.c223
1 files changed, 223 insertions, 0 deletions
diff --git a/test/nptl/tst-mutex2.c b/test/nptl/tst-mutex2.c
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+++ b/test/nptl/tst-mutex2.c
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+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+static pthread_mutex_t m;
+static pthread_barrier_t b;
+
+
+static void *
+tf (void *arg)
+{
+ int e = pthread_mutex_unlock (&m);
+ if (e == 0)
+ {
+ puts ("child: 1st mutex_unlock succeeded");
+ exit (1);
+ }
+ else if (e != EPERM)
+ {
+ puts ("child: 1st mutex_unlock error != EPERM");
+ exit (1);
+ }
+
+ e = pthread_mutex_trylock (&m);
+ if (e == 0)
+ {
+ puts ("child: 1st trylock suceeded");
+ exit (1);
+ }
+ if (e != EBUSY)
+ {
+ puts ("child: 1st trylock didn't return EBUSY");
+ exit (1);
+ }
+
+ e = pthread_barrier_wait (&b);
+ if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("child: 1st barrier_wait failed");
+ exit (1);
+ }
+
+ e = pthread_barrier_wait (&b);
+ if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("child: 2nd barrier_wait failed");
+ exit (1);
+ }
+
+ e = pthread_mutex_unlock (&m);
+ if (e == 0)
+ {
+ puts ("child: 2nd mutex_unlock succeeded");
+ exit (1);
+ }
+ else if (e != EPERM)
+ {
+ puts ("child: 2nd mutex_unlock error != EPERM");
+ exit (1);
+ }
+
+ if (pthread_mutex_trylock (&m) != 0)
+ {
+ puts ("child: 2nd trylock failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_unlock (&m) != 0)
+ {
+ puts ("child: 3rd mutex_unlock failed");
+ exit (1);
+ }
+
+ return NULL;
+}
+
+
+static int
+do_test (void)
+{
+ pthread_mutexattr_t a;
+ int e;
+
+ if (pthread_mutexattr_init (&a) != 0)
+ {
+ puts ("mutexattr_init failed");
+ exit (1);
+ }
+
+ if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_ERRORCHECK) != 0)
+ {
+ puts ("mutexattr_settype failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_init (&m, &a) != 0)
+ {
+ puts ("mutex_init failed");
+ exit (1);
+ }
+
+ if (pthread_barrier_init (&b, NULL, 2) != 0)
+ {
+ puts ("barrier_init failed");
+ exit (1);
+ }
+
+ if ((e = pthread_mutex_unlock (&m)) == 0)
+ {
+ puts ("1st mutex_unlock succeeded");
+ exit (1);
+ }
+ else if (e != EPERM)
+ {
+ puts ("1st mutex_unlock error != EPERM");
+ exit (1);
+ }
+
+ if (pthread_mutex_lock (&m) != 0)
+ {
+ puts ("mutex_lock failed");
+ exit (1);
+ }
+
+ if ((e = pthread_mutex_lock (&m)) == 0)
+ {
+ puts ("2nd mutex_lock succeeded");
+ exit (1);
+ }
+ else if (e != EDEADLK)
+ {
+ puts ("2nd mutex_lock error != EDEADLK");
+ exit (1);
+ }
+
+ pthread_t th;
+ if (pthread_create (&th, NULL, tf, NULL) != 0)
+ {
+ puts ("create failed");
+ exit (1);
+ }
+
+ e = pthread_barrier_wait (&b);
+ if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("1st barrier_wait failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_unlock (&m) != 0)
+ {
+ puts ("2nd mutex_unlock failed");
+ exit (1);
+ }
+
+ if ((e = pthread_mutex_unlock (&m)) == 0)
+ {
+ puts ("3rd mutex_unlock succeeded");
+ exit (1);
+ }
+ else if (e != EPERM)
+ {
+ puts ("3rd mutex_unlock error != EPERM");
+ exit (1);
+ }
+
+ e = pthread_barrier_wait (&b);
+ if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("2nd barrier_wait failed");
+ exit (1);
+ }
+
+ if (pthread_join (th, NULL) != 0)
+ {
+ puts ("join failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_destroy (&m) != 0)
+ {
+ puts ("mutex_destroy failed");
+ exit (1);
+ }
+
+ if (pthread_barrier_destroy (&b) != 0)
+ {
+ puts ("barrier_destroy failed");
+ exit (1);
+ }
+
+ if (pthread_mutexattr_destroy (&a) != 0)
+ {
+ puts ("mutexattr_destroy failed");
+ exit (1);
+ }
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"