From 7988979a722b4cdf287b2093956a76a3f19b9897 Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@uclibc-ng.org>
Date: Mon, 24 Oct 2016 20:22:12 +0200
Subject: add uClibc-ng test directory

---
 test/nptl/tst-barrier2.c | 184 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 test/nptl/tst-barrier2.c

(limited to 'test/nptl/tst-barrier2.c')

diff --git a/test/nptl/tst-barrier2.c b/test/nptl/tst-barrier2.c
new file mode 100644
index 0000000..8ffcda0
--- /dev/null
+++ b/test/nptl/tst-barrier2.c
@@ -0,0 +1,184 @@
+/* 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+
+static int
+do_test (void)
+{
+  size_t ps = sysconf (_SC_PAGESIZE);
+  char tmpfname[] = "/tmp/tst-barrier2.XXXXXX";
+  char data[ps];
+  void *mem;
+  int fd;
+  pthread_barrier_t *b;
+  pthread_barrierattr_t a;
+  pid_t pid;
+  int serials = 0;
+  int cnt;
+  int status;
+  int p;
+
+  fd = mkstemp (tmpfname);
+  if (fd == -1)
+    {
+      printf ("cannot open temporary file: %m\n");
+      return 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");
+      return 1;
+    }
+
+  mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+  if (mem == MAP_FAILED)
+    {
+      printf ("mmap failed: %m\n");
+      return 1;
+    }
+
+  b = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
+			     & ~(__alignof (pthread_barrier_t) - 1));
+
+  if (pthread_barrierattr_init (&a) != 0)
+    {
+      puts ("barrierattr_init failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_getpshared (&a, &p) != 0)
+    {
+      puts ("1st barrierattr_getpshared failed");
+      return 1;
+    }
+
+  if (p != PTHREAD_PROCESS_PRIVATE)
+    {
+      puts ("default pshared value wrong");
+      return 1;
+    }
+
+  if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
+    {
+      puts ("barrierattr_setpshared failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_getpshared (&a, &p) != 0)
+    {
+      puts ("2nd barrierattr_getpshared failed");
+      return 1;
+    }
+
+  if (p != PTHREAD_PROCESS_SHARED)
+    {
+      puts ("pshared value after setpshared call wrong");
+      return 1;
+    }
+
+  if (pthread_barrier_init (b, &a, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_destroy (&a) != 0)
+    {
+      puts ("barrierattr_destroy failed");
+      return 1;
+    }
+
+  puts ("going to fork now");
+  pid = fork ();
+  if (pid == -1)
+    {
+      puts ("fork failed");
+      return 1;
+    }
+
+  /* Just to be sure we don't hang forever.  */
+  alarm (4);
+
+#define N 30
+  for (cnt = 0; cnt < N; ++cnt)
+    {
+      int e;
+
+      e = pthread_barrier_wait (b);
+      if (e == PTHREAD_BARRIER_SERIAL_THREAD)
+	++serials;
+      else if (e != 0)
+	{
+	  printf ("%s: barrier_wait returned value %d != 0 and PTHREAD_BARRIER_SERIAL_THREAD\n",
+		  pid == 0 ? "child" : "parent", e);
+	  return 1;
+	}
+    }
+
+  alarm (0);
+
+  printf ("%s: was %d times the serial thread\n",
+	  pid == 0 ? "child" : "parent", serials);
+
+  if (pid == 0)
+    /* The child.  Pass the number of times we had the serializing
+       thread back to the parent.  */
+    exit (serials);
+
+  if (waitpid (pid, &status, 0) != pid)
+    {
+      puts ("waitpid failed");
+      return 1;
+    }
+
+  if (!WIFEXITED (status))
+    {
+      puts ("child exited abnormally");
+      return 1;
+    }
+
+  if (WEXITSTATUS (status) + serials != N)
+    {
+      printf ("total number of serials is %d, expected %d\n",
+	      WEXITSTATUS (status) + serials, N);
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
-- 
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