Don't call usleep if signals are disabled

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@278 42af7a65-404d-4744-a932-0658087f49c3

ChangeLog

@@ -174,5 +174,7 @@
 	* include/nuttx/compiler.h: Fix for using SDCC with the Z80.
 	* include/assert.h & arch/pjrc-8051/src/up_assert.c: SDCC does support
 	  __FILE__and __LINE__ (not tested)
+	* examples/ostest/barrier.c: Don't call usleep() when signals are
+	  disabled.
 	* Started m68322
 

Documentation/NuttX.html

@@ -608,6 +608,8 @@ Other memory:
 	* include/nuttx/compiler.h: Fix for using SDCC with the Z80.
 	* include/assert.h & arch/pjrc-8051/src/up_assert.c: SDCC does support
 	  __FILE__and __LINE__ (not tested)
+	* examples/ostest/barrier.c: Don't call usleep() when signals are
+	  disabled.
 	* Started m68322
 </pre></ul>
 

examples/ostest/barrier.c

@@ -49,7 +49,9 @@ static void *barrier_func(void *parameter)
   int status;
 
   printf("barrier_func: Thread %d started\n",  id);
+#ifndef CONFIG_DISABLE_SIGNALS
   usleep(500*1000);
+#endif
 
   /* Take the semaphore */
 
@@ -68,7 +70,9 @@ static void *barrier_func(void *parameter)
       printf("barrier_func: ERROR thread %d could not get semaphore value\n",  id);
     }
 
+#ifndef CONFIG_DISABLE_SIGNALS
   usleep(500*1000);
+#endif
   printf("barrier_func: Thread %d done\n",  id);
   return NULL;
 }