1 files changed, 73 insertions, 0 deletions
diff --git a/misc/nanosecond_tick_wrap/init.c b/misc/nanosecond_tick_wrap/init.c
new file mode 100644
index 0000000..1740df2
--- /dev/null
+++ b/misc/nanosecond_tick_wrap/init.c
@@ -0,0 +1,73 @@
+/*
+ *  COPYRIGHT (c) 1989-2011.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+/* Based upon code in PR1748 */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <bsp.h>
+
+#define LOOPS 1000
+uint32_t           uptime_usec[LOOPS];
+struct timespec    uptime[LOOPS];
+
+rtems_task Init(
+  rtems_task_argument argument
+)
+{
+  int              i;
+  uint32_t         t0=0;
+
+  puts( "\n\n*** Nanosecond Clock Tick Wrap Test ***" );
+  for ( i=0; i<LOOPS; i++ ) {
+
+    rtems_clock_get_uptime( &uptime[i] );
+    uptime_usec[i] = ((uint32_t)uptime[i].tv_sec * 1000000) +
+                     ((uint32_t)uptime[i].tv_nsec / 1000);
+  }
+
+  for ( i=0; i<LOOPS; i++ ) {
+    unsigned t1, usec, msec, sec;
+
+    t1 = uptime_usec[i];
+    usec = t1 % 1000;
+    msec = (t1 / 1000) % 1000;
+    sec  = t1 / 1000000;
+
+    printf(
+      "TEST:rtems=%u.%09u   t=%u.%03u.%03u   dt=%u\n",
+      uptime[i].tv_sec, uptime[i].tv_nsec, sec, msec, usec, (t1-t0)
+    );
+    t0 = t1;
+  }
+
+  puts( "*** END OF Nanosecond Clock Tick Wrap Test ***" );
+  exit(0);
+}
+
+/**************** START OF CONFIGURATION INFORMATION ****************/
+
+#define CONFIGURE_INIT
+
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+
+#define CONFIGURE_MAXIMUM_TASKS         1
+#define CONFIGURE_MICROSECONDS_PER_TICK \
+        (RTEMS_MILLISECONDS_TO_MICROSECONDS(1) / 2)
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#include <rtems/confdefs.h>
+
+/****************  END OF CONFIGURATION INFORMATION  ****************/
+