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).

1 files changed, 166 insertions, 0 deletions

diff --git a/REORG.TODO/nptl/tst-once3.c b/REORG.TODO/nptl/tst-once3.c
new file mode 100644
index 0000000000..757ad8f12c
--- /dev/null
+++ b/REORG.TODO/nptl/tst-once3.c
@@ -0,0 +1,166 @@
+/* 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 <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+
+#define N 100
+
+static pthread_once_t once = PTHREAD_ONCE_INIT;
+
+static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
+
+static pthread_barrier_t bar;
+
+static int global;
+static int cl_called;
+
+static void
+once_handler1 (void)
+{
+  if (pthread_mutex_lock (&mut) != 0)
+    {
+      puts ("once_handler1: mutex_lock failed");
+      exit (1);
+    }
+  puts ("once_handler1: locked");
+
+  int r = pthread_barrier_wait (&bar);
+  if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("once_handler1: barrier_wait failed");
+      exit (1);
+    }
+
+  puts ("once_handler1: going to wait on cond");
+
+  pthread_cond_wait (&cond, &mut);
+
+  /* We should never get here.  */
+  exit (42);
+}
+
+static void
+once_handler2 (void)
+{
+  global = 1;
+}
+
+
+static void
+cl (void *arg)
+{
+  cl_called = 1;
+}
+
+
+static void *
+tf (void *arg)
+{
+  pthread_cleanup_push (cl, NULL)
+
+  pthread_once (&once, once_handler1);
+
+  pthread_cleanup_pop (0);
+
+  /* We should never get here.  */
+  puts ("pthread_once in tf returned");
+  exit (1);
+}
+
+
+static int
+do_test (void)
+{
+  pthread_t th;
+
+  if (pthread_barrier_init (&bar, NULL, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  if (pthread_create (&th, NULL, tf, NULL) != 0)
+    {
+      puts ("first create failed");
+      return 1;
+    }
+
+  int r = pthread_barrier_wait (&bar);
+  if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("barrier_wait failed");
+      return 1;
+    }
+
+  if (pthread_mutex_lock (&mut) != 0)
+    {
+      puts ("mutex_lock failed");
+      return 1;
+    }
+  /* We unlock the mutex so that we catch the case where the pthread_cond_wait
+     call incorrectly resumes and tries to get the mutex.  */
+  if (pthread_mutex_unlock (&mut) != 0)
+    {
+      puts ("mutex_unlock failed");
+      return 1;
+    }
+
+  /* Cancel the thread.  */
+  puts ("going to cancel");
+  if (pthread_cancel (th) != 0)
+    {
+      puts ("cancel failed");
+      return 1;
+    }
+
+  void *result;
+  pthread_join (th, &result);
+  if (result != PTHREAD_CANCELED)
+    {
+      puts ("join didn't return PTHREAD_CANCELED");
+      return 1;
+    }
+  puts ("joined successfully");
+
+  printf ("once = %d\n", *(int *) &once);
+
+  if (cl_called != 1)
+    {
+      puts ("cleanup handler not called");
+      return 1;
+    }
+
+  pthread_once (&once, once_handler2);
+
+  if (global != 1)
+    {
+      puts ("global still 0");
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#define TIMEOUT 4
+#include "../test-skeleton.c"