From 196939fb0ede8b588019f7ff0779dffbfc35787d Mon Sep 17 00:00:00 2001
From: Guo Yixuan <culu.gyx@gmail.com>
Date: Thu, 29 May 2014 21:53:16 -0700
Subject: New test for pthread_spin_lock (bug 16882)

	* nptl/tst-spin4.c: New test.
	* nptl/Makefile (tests): Add tst-spin4.
---
 nptl/tst-spin4.c | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 nptl/tst-spin4.c

(limited to 'nptl/tst-spin4.c')

diff --git a/nptl/tst-spin4.c b/nptl/tst-spin4.c
new file mode 100644
index 0000000..5b23a17
--- /dev/null
+++ b/nptl/tst-spin4.c
@@ -0,0 +1,109 @@
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static int count = 0;
+
+static void *
+thread_add_one (void *arg)
+{
+  int tmp;
+  pthread_spinlock_t *lock = (pthread_spinlock_t *) arg;
+
+  /* When do_test holds the lock for 1 sec, the two thread will be
+     in contention for the lock. */
+  if (pthread_spin_lock (lock) != 0)
+    {
+      puts ("thread_add_one(): spin_lock failed");
+      pthread_exit ((void *) 1l);
+    }
+
+  /* sleep 1s before modifying count */
+  tmp = count;
+  sleep (1);
+  count = tmp + 1;
+
+  if (pthread_spin_unlock (lock) != 0)
+    {
+      puts ("thread_add_one(): spin_unlock failed");
+      pthread_exit ((void *) 1l);
+    }
+
+  return NULL;
+}
+
+static int
+do_test (void)
+{
+  pthread_t thr1, thr2;
+  pthread_spinlock_t lock;
+  int tmp;
+
+  if (pthread_spin_init (&lock, PTHREAD_PROCESS_PRIVATE) != 0)
+    {
+      puts ("spin_init failed");
+      return 1;
+    }
+
+  if (pthread_spin_lock (&lock) != 0)
+    {
+      puts ("1st spin_lock failed");
+      return 1;
+    }
+
+  if (pthread_create (&thr1, NULL, thread_add_one, (void *) &lock) != 0)
+    {
+      puts ("1st pthread_create failed");
+      return 1;
+    }
+
+  if (pthread_create (&thr2, NULL, thread_add_one, (void *) &lock) != 0)
+    {
+      puts ("2nd pthread_create failed");
+      return 1;
+    }
+
+  /* sleep 1s before modifying count */
+  tmp = count;
+  sleep (1);
+  count = tmp + 1;
+
+  if (pthread_spin_unlock (&lock) != 0)
+    {
+      puts ("1st spin_unlock failed");
+      return 1;
+    }
+
+  void *status;
+  if (pthread_join (thr1, &status) != 0)
+    {
+      puts ("1st pthread_join failed");
+      return 1;
+    }
+  if (status != NULL)
+    {
+      puts ("failure in the 1st thread");
+      return 1;
+    }
+  if (pthread_join (thr2, &status) != 0)
+    {
+      puts ("2nd pthread_join failed");
+      return 1;
+    }
+  if (status != NULL)
+    {
+      puts ("failure in the 2nd thread");
+      return 1;
+    }
+
+  if (count != 3)
+    {
+      printf ("count is %d, should be 3\n", count);
+      return 1;
+    }
+  return 0;
+}
+
+#define TIMEOUT 5
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
-- 
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