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authorUlrich Drepper <drepper@redhat.com>2003-11-21 09:20:45 +0000
committerUlrich Drepper <drepper@redhat.com>2003-11-21 09:20:45 +0000
commit53f9084e3f565d62f2a1293a72cb838b759382ce (patch)
treed12244cbe15795af699f7c656e9fcede50e3c97d /nptl/tst-cond12.c
parentc13c99fa92bff8320d2af23717c3e4d656923932 (diff)
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Update.
2003-11-21 Ulrich Drepper <drepper@redhat.com> * Makefile: Add rules to build and run tst-cond12. * tst-cond12.c: New file.
Diffstat (limited to 'nptl/tst-cond12.c')
-rw-r--r--nptl/tst-cond12.c184
1 files changed, 184 insertions, 0 deletions
diff --git a/nptl/tst-cond12.c b/nptl/tst-cond12.c
new file mode 100644
index 0000000..256c8a9
--- /dev/null
+++ b/nptl/tst-cond12.c
@@ -0,0 +1,184 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+ 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 <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+
+static char fname[] = "/tmp/tst-cond12-XXXXXX";
+static int fd;
+
+
+static void
+prepare (void)
+{
+ fd = mkstemp (fname);
+ if (fd == -1)
+ {
+ printf ("mkstemp failed: %m\n");
+ exit (1);
+ }
+ add_temp_file (fname);
+ if (ftruncate (fd, 1000) < 0)
+ {
+ printf ("ftruncate failed: %m\n");
+ exit (1);
+ }
+}
+#define PREPARE(argc, argv) prepare ()
+
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
+
+
+static int
+do_test (void)
+{
+ struct
+ {
+ pthread_mutex_t m;
+ pthread_cond_t c;
+ int var;
+ } *p = mmap (NULL, sizeof (*p), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+ if (p == MAP_FAILED)
+ {
+ printf ("initial mmap failed: %m\n");
+ return 1;
+ }
+
+ pthread_mutexattr_t ma;
+ if (pthread_mutexattr_init (&ma) != 0)
+ {
+ puts ("mutexattr_init failed");
+ return 1;
+ }
+ if (pthread_mutexattr_setpshared (&ma, 1) != 0)
+ {
+ puts ("mutexattr_setpshared failed");
+ return 1;
+ }
+ if (pthread_mutex_init (&p->m, &ma) != 0)
+ {
+ puts ("mutex_init failed");
+ return 1;
+ }
+ if (pthread_mutexattr_destroy (&ma) != 0)
+ {
+ puts ("mutexattr_destroy failed");
+ return 1;
+ }
+
+ pthread_condattr_t ca;
+ if (pthread_condattr_init (&ca) != 0)
+ {
+ puts ("condattr_init failed");
+ return 1;
+ }
+ if (pthread_condattr_setpshared (&ca, 1) != 0)
+ {
+ puts ("condattr_setpshared failed");
+ return 1;
+ }
+ if (pthread_cond_init (&p->c, &ca) != 0)
+ {
+ puts ("mutex_init failed");
+ return 1;
+ }
+ if (pthread_condattr_destroy (&ca) != 0)
+ {
+ puts ("condattr_destroy failed");
+ return 1;
+ }
+
+ if (pthread_mutex_lock (&p->m) != 0)
+ {
+ puts ("initial mutex_lock failed");
+ return 1;
+ }
+
+ p->var = 42;
+
+ pid_t pid = fork ();
+ if (pid == -1)
+ {
+ printf ("fork failed: %m\n");
+ return 1;
+ }
+
+ if (pid == 0)
+ {
+ void *oldp = p;
+ p = mmap (NULL, sizeof (*p), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+
+ if (p == oldp)
+ {
+ puts ("child: mapped to same address");
+ kill (getppid (), SIGKILL);
+ exit (1);
+ }
+
+ munmap (oldp, sizeof (*p));
+
+ if (pthread_mutex_lock (&p->m) != 0)
+ {
+ puts ("child: mutex_lock failed");
+ kill (getppid (), SIGKILL);
+ exit (1);
+ }
+
+ p->var = 0;
+
+ if (pthread_cond_broadcast (&p->c) != 0)
+ {
+ puts ("child: cond_broadcast failed");
+ kill (getppid (), SIGKILL);
+ exit (1);
+ }
+
+ if (pthread_mutex_unlock (&p->m) != 0)
+ {
+ puts ("child: mutex_unlock failed");
+ kill (getppid (), SIGKILL);
+ exit (1);
+ }
+
+ exit (0);
+ }
+
+ do
+ pthread_cond_wait (&p->c, &p->m);
+ while (p->var != 0);
+
+ if (TEMP_FAILURE_RETRY (waitpid (pid, NULL, 0)) != pid)
+ {
+ printf ("waitpid failed: %m\n");
+ kill (pid, SIGKILL);
+ return 1;
+ }
+
+ return 0;
+}