examples/ostest can be executed in a loop

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@763 42af7a65-404d-4744-a932-0658087f49c3

examples/README.txt

@@ -20,7 +20,11 @@ examples/ostest
   The behavior of the ostest can be modified with the following
   settings in the configs/<board-name>/defconfig file:
 
-  * CONFIG_OSTEST_STACKSIZE
+  * CONFIG_EXAMPLES_OSTEST_LOOPS
+      Used to control the number of executions of the test.  If
+      undefined, the test executes one time.  If defined to be
+      zero, the test runs forever.
+  * CONFIG_EXAMPLES_OSTEST_STACKSIZE
       Used to create the ostest task.  Default is 8192.
 
 examples/nsh

examples/ostest/barrier.c

@@ -53,7 +53,7 @@ static void *barrier_func(void *parameter)
   usleep(500*1000);
 #endif
 
-  /* Take the semaphore */
+  /* Wait at the barrier until all threads are synchronized. */
 
   printf("barrier_func: Thread %d calling pthread_barrier_wait()\n",  id);
   status = pthread_barrier_wait(&barrier);
@@ -99,6 +99,7 @@ void barrier_test(void)
     {
       printf("barrier_test: pthread_barrierattr_init failed, status=%d\n",  status);
     }
+
   /* Create the barrier */
 
   status = pthread_barrierattr_init(&barrierattr);