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authorUlrich Drepper <drepper@redhat.com>2004-09-02 18:59:24 +0000
committerUlrich Drepper <drepper@redhat.com>2004-09-02 18:59:24 +0000
commit73f7c32c47ab2397935d9fc2aeaa594794b38c7e (patch)
tree1a0f7d20c9009fbd67c33495f9db0a5d665092b3 /nptl/tst-cond20.c
parent86aca5ac58e152336e676bc1231acac6adc32068 (diff)
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[BZ #357]
Update. 2004-09-02 Steven Munroe <sjmunroe@us.ibm.com> [BZ #357] * stdlib/tst-setcontext.c (test_stack): Added test for stack clobber. (main): Call test_stack. * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S (__getcontext): Push stack frame then save parms in local frame. Improve instruction scheduling. * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S (__swapcontext): Likewise.
Diffstat (limited to 'nptl/tst-cond20.c')
-rw-r--r--nptl/tst-cond20.c170
1 files changed, 170 insertions, 0 deletions
diff --git a/nptl/tst-cond20.c b/nptl/tst-cond20.c
new file mode 100644
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--- /dev/null
+++ b/nptl/tst-cond20.c
@@ -0,0 +1,170 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+ 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 <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define N 10
+#define ROUNDS 1000
+static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+static pthread_cond_t cond2 = PTHREAD_COND_INITIALIZER;
+static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
+static pthread_barrier_t b;
+static int count;
+
+static void *
+tf (void *p)
+{
+ int i;
+ for (i = 0; i < ROUNDS; ++i)
+ {
+ pthread_mutex_lock (&mut);
+
+ if (++count == N)
+ pthread_cond_signal (&cond2);
+
+#ifdef TIMED
+ struct timeval tv;
+ gettimeofday (&tv, NULL);
+ struct timespec ts;
+ /* Wait three second. */
+ ts.tv_sec = tv.tv_sec + 3;
+ ts.tv_nsec = tv.tv_usec * 1000;
+ pthread_cond_timedwait (&cond, &mut, &ts);
+#else
+ pthread_cond_wait (&cond, &mut);
+#endif
+
+ pthread_mutex_unlock (&mut);
+
+ int err = pthread_barrier_wait (&b);
+ if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("child: barrier_wait failed");
+ exit (1);
+ }
+
+ err = pthread_barrier_wait (&b);
+ if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("child: barrier_wait failed");
+ exit (1);
+ }
+ }
+
+ return NULL;
+}
+
+
+static int
+do_test (void)
+{
+ if (pthread_barrier_init (&b, NULL, N + 1) != 0)
+ {
+ puts ("barrier_init failed");
+ return 1;
+ }
+
+ pthread_mutex_lock (&mut);
+
+ int i, j, err;
+ pthread_t th[N];
+ for (i = 0; i < N; ++i)
+ if ((err = pthread_create (&th[i], NULL, tf, NULL)) != 0)
+ {
+ printf ("cannot create thread %d: %s\n", i, strerror (err));
+ return 1;
+ }
+
+ for (i = 0; i < ROUNDS; ++i)
+ {
+ pthread_cond_wait (&cond2, &mut);
+
+ if (i & 1)
+ pthread_mutex_unlock (&mut);
+
+ if (i & 2)
+ pthread_cond_broadcast (&cond);
+ else if (i & 4)
+ for (j = 0; j < N; ++j)
+ pthread_cond_signal (&cond);
+ else
+ {
+ for (j = 0; j < (i / 8) % N; ++j)
+ pthread_cond_signal (&cond);
+ pthread_cond_broadcast (&cond);
+ }
+
+ if ((i & 1) == 0)
+ pthread_mutex_unlock (&mut);
+
+ err = pthread_cond_destroy (&cond);
+ if (err)
+ {
+ printf ("pthread_cond_destroy failed: %s\n", strerror (err));
+ return 1;
+ }
+
+ /* Now clobber the cond variable which has been successfully
+ destroyed above. */
+ memset (&cond, (char) i, sizeof (cond));
+
+ err = pthread_barrier_wait (&b);
+ if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("parent: barrier_wait failed");
+ return 1;
+ }
+
+ pthread_mutex_lock (&mut);
+
+ err = pthread_barrier_wait (&b);
+ if (err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD)
+ {
+ puts ("parent: barrier_wait failed");
+ return 1;
+ }
+
+ count = 0;
+ err = pthread_cond_init (&cond, NULL);
+ if (err)
+ {
+ printf ("pthread_cond_init failed: %s\n", strerror (err));
+ return 1;
+ }
+ }
+
+ for (i = 0; i < N; ++i)
+ if ((err = pthread_join (th[i], NULL)) != 0)
+ {
+ printf ("failed to join thread %d: %s\n", i, strerror (err));
+ return 1;
+ }
+
+ puts ("done");
+
+ return 0;
+}
+
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"