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-rw-r--r--test/nptl/tst-cond6.c234
1 files changed, 234 insertions, 0 deletions
diff --git a/test/nptl/tst-cond6.c b/test/nptl/tst-cond6.c
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index 000000000..8c5fe2093
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+++ b/test/nptl/tst-cond6.c
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+/* Copyright (C) 2002, 2003, 2004 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>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <stdint.h>
+
+
+int *condition;
+
+static int
+do_test (void)
+{
+ size_t ps = sysconf (_SC_PAGESIZE);
+ char tmpfname[] = "/tmp/tst-cond6.XXXXXX";
+ char data[ps];
+ void *mem;
+ int fd;
+ pthread_mutexattr_t ma;
+ pthread_mutex_t *mut1;
+ pthread_mutex_t *mut2;
+ pthread_condattr_t ca;
+ pthread_cond_t *cond;
+ pid_t pid;
+ int result = 0;
+
+ fd = mkstemp (tmpfname);
+ if (fd == -1)
+ {
+ printf ("cannot open temporary file: %m\n");
+ exit (1);
+ }
+
+ /* Make sure it is always removed. */
+ unlink (tmpfname);
+
+ /* Create one page of data. */
+ memset (data, '\0', ps);
+
+ /* Write the data to the file. */
+ if (write (fd, data, ps) != (ssize_t) ps)
+ {
+ puts ("short write");
+ exit (1);
+ }
+
+ mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (mem == MAP_FAILED)
+ {
+ printf ("mmap failed: %m\n");
+ exit (1);
+ }
+
+ mut1 = (pthread_mutex_t *) (((uintptr_t) mem
+ + __alignof (pthread_mutex_t))
+ & ~(__alignof (pthread_mutex_t) - 1));
+ mut2 = mut1 + 1;
+
+ cond = (pthread_cond_t *) (((uintptr_t) (mut2 + 1)
+ + __alignof (pthread_cond_t))
+ & ~(__alignof (pthread_cond_t) - 1));
+
+ condition = (int *) (((uintptr_t) (cond + 1) + __alignof (int))
+ & ~(__alignof (int) - 1));
+
+ if (pthread_mutexattr_init (&ma) != 0)
+ {
+ puts ("mutexattr_init failed");
+ exit (1);
+ }
+
+ if (pthread_mutexattr_setpshared (&ma, PTHREAD_PROCESS_SHARED) != 0)
+ {
+ puts ("mutexattr_setpshared failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_init (mut1, &ma) != 0)
+ {
+ puts ("1st mutex_init failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_init (mut2, &ma) != 0)
+ {
+ puts ("2nd mutex_init failed");
+ exit (1);
+ }
+
+ if (pthread_condattr_init (&ca) != 0)
+ {
+ puts ("condattr_init failed");
+ exit (1);
+ }
+
+ if (pthread_condattr_setpshared (&ca, PTHREAD_PROCESS_SHARED) != 0)
+ {
+ puts ("condattr_setpshared failed");
+ exit (1);
+ }
+
+ if (pthread_cond_init (cond, &ca) != 0)
+ {
+ puts ("cond_init failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_lock (mut1) != 0)
+ {
+ puts ("parent: 1st mutex_lock failed");
+ exit (1);
+ }
+
+ puts ("going to fork now");
+ pid = fork ();
+ if (pid == -1)
+ {
+ puts ("fork failed");
+ exit (1);
+ }
+ else if (pid == 0)
+ {
+ struct timespec ts;
+ struct timeval tv;
+
+ if (pthread_mutex_lock (mut2) != 0)
+ {
+ puts ("child: mutex_lock failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_unlock (mut1) != 0)
+ {
+ puts ("child: 1st mutex_unlock failed");
+ exit (1);
+ }
+
+ if (gettimeofday (&tv, NULL) != 0)
+ {
+ puts ("gettimeofday failed");
+ exit (1);
+ }
+
+ TIMEVAL_TO_TIMESPEC (&tv, &ts);
+ ts.tv_nsec += 500000000;
+ if (ts.tv_nsec >= 1000000000)
+ {
+ ts.tv_nsec -= 1000000000;
+ ++ts.tv_sec;
+ }
+
+ do
+ if (pthread_cond_timedwait (cond, mut2, &ts) != 0)
+ {
+ puts ("child: cond_wait failed");
+ exit (1);
+ }
+ while (*condition == 0);
+
+ if (pthread_mutex_unlock (mut2) != 0)
+ {
+ puts ("child: 2nd mutex_unlock failed");
+ exit (1);
+ }
+
+ puts ("child done");
+ }
+ else
+ {
+ int status;
+
+ if (pthread_mutex_lock (mut1) != 0)
+ {
+ puts ("parent: 2nd mutex_lock failed");
+ exit (1);
+ }
+
+ if (pthread_mutex_lock (mut2) != 0)
+ {
+ puts ("parent: 3rd mutex_lock failed");
+ exit (1);
+ }
+
+ if (pthread_cond_signal (cond) != 0)
+ {
+ puts ("parent: cond_signal failed");
+ exit (1);
+ }
+
+ *condition = 1;
+
+ if (pthread_mutex_unlock (mut2) != 0)
+ {
+ puts ("parent: mutex_unlock failed");
+ exit (1);
+ }
+
+ puts ("waiting for child");
+
+ waitpid (pid, &status, 0);
+ result |= status;
+
+ puts ("parent done");
+ }
+
+ return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"