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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/nptl/tst-mutex7.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
downloadglibc-zack/build-layout-experiment.tar.gz
glibc-zack/build-layout-experiment.tar.xz
glibc-zack/build-layout-experiment.zip
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/nptl/tst-mutex7.c')
-rw-r--r--REORG.TODO/nptl/tst-mutex7.c164
1 files changed, 164 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/tst-mutex7.c b/REORG.TODO/nptl/tst-mutex7.c
new file mode 100644
index 0000000000..a11afdba5e
--- /dev/null
+++ b/REORG.TODO/nptl/tst-mutex7.c
@@ -0,0 +1,164 @@
+/* Copyright (C) 2002-2017 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+
+#ifndef TYPE
+# define TYPE PTHREAD_MUTEX_DEFAULT
+#endif
+
+
+static pthread_mutex_t lock;
+
+
+#define ROUNDS 1000
+#define N 100
+
+
+static void *
+tf (void *arg)
+{
+  int nr = (long int) arg;
+  int cnt;
+  struct timespec ts = { .tv_sec = 0, .tv_nsec = 11000 };
+
+  for (cnt = 0; cnt < ROUNDS; ++cnt)
+    {
+      if (pthread_mutex_lock (&lock) != 0)
+	{
+	  printf ("thread %d: failed to get the lock\n", nr);
+	  return (void *) 1l;
+	}
+
+      if (pthread_mutex_unlock (&lock) != 0)
+	{
+	  printf ("thread %d: failed to release the lock\n", nr);
+	  return (void *) 1l;
+	}
+
+      nanosleep (&ts, NULL);
+    }
+
+  return NULL;
+}
+
+
+static int
+do_test (void)
+{
+  pthread_mutexattr_t a;
+
+  if (pthread_mutexattr_init (&a) != 0)
+    {
+      puts ("mutexattr_init failed");
+      exit (1);
+    }
+
+  if (pthread_mutexattr_settype (&a, TYPE) != 0)
+    {
+      puts ("mutexattr_settype failed");
+      exit (1);
+    }
+
+#ifdef ENABLE_PI
+  if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
+    {
+      puts ("pthread_mutexattr_setprotocol failed");
+      return 1;
+    }
+#endif
+
+  int e = pthread_mutex_init (&lock, &a);
+  if (e != 0)
+    {
+#ifdef ENABLE_PI
+      if (e == ENOTSUP)
+	{
+	  puts ("PI mutexes unsupported");
+	  return 0;
+	}
+#endif
+      puts ("mutex_init failed");
+      return 1;
+    }
+
+  if (pthread_mutexattr_destroy (&a) != 0)
+    {
+      puts ("mutexattr_destroy failed");
+      return 1;
+    }
+
+  pthread_attr_t at;
+  pthread_t th[N];
+  int cnt;
+
+  if (pthread_attr_init (&at) != 0)
+    {
+      puts ("attr_init failed");
+      return 1;
+    }
+
+  if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0)
+    {
+      puts ("attr_setstacksize failed");
+      return 1;
+    }
+
+  if (pthread_mutex_lock (&lock) != 0)
+    {
+      puts ("locking in parent failed");
+      return 1;
+    }
+
+  for (cnt = 0; cnt < N; ++cnt)
+    if (pthread_create (&th[cnt], &at, tf, (void *) (long int) cnt) != 0)
+      {
+	printf ("creating thread %d failed\n", cnt);
+	return 1;
+      }
+
+  if (pthread_attr_destroy (&at) != 0)
+    {
+      puts ("attr_destroy failed");
+      return 1;
+    }
+
+  if (pthread_mutex_unlock (&lock) != 0)
+    {
+      puts ("unlocking in parent failed");
+      return 1;
+    }
+
+  for (cnt = 0; cnt < N; ++cnt)
+    if (pthread_join (th[cnt], NULL) != 0)
+      {
+	printf ("joining thread %d failed\n", cnt);
+	return 1;
+      }
+
+  return 0;
+}
+
+#define TIMEOUT 60
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"