1 files changed, 93 insertions, 0 deletions
diff --git a/cpukit/rtems/src/timerreset.c b/cpukit/rtems/src/timerreset.c
new file mode 100644
index 0000000000..4a3e094a08
--- /dev/null
+++ b/cpukit/rtems/src/timerreset.c
@@ -0,0 +1,93 @@
+/*
+ *  Timer Manager - rtems_timer_reset directive
+ *
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  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.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/system.h>
+#include <rtems/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/score/object.h>
+#include <rtems/score/thread.h>
+#include <rtems/rtems/timer.h>
+#include <rtems/score/tod.h>
+#include <rtems/score/watchdog.h>
+
+/*PAGE
+ *
+ *  rtems_timer_reset
+ *
+ *  This directive allows a thread to reset a timer.
+ *
+ *  Input parameters:
+ *    id - timer id
+ *
+ *  Output parameters:
+ *    RTEMS_SUCCESSFUL - if successful
+ *    error code       - if unsuccessful
+ */
+
+rtems_status_code rtems_timer_reset(
+  rtems_id id
+)
+{
+  Timer_Control     *the_timer;
+  Objects_Locations  location;
+  rtems_status_code  status = RTEMS_SUCCESSFUL;
+
+  the_timer = _Timer_Get( id, &location );
+  switch ( location ) {
+
+    case OBJECTS_LOCAL:
+      if ( the_timer->the_class == TIMER_INTERVAL ) {
+        _Watchdog_Remove( &the_timer->Ticker );
+        _Watchdog_Insert( &_Watchdog_Ticks_chain, &the_timer->Ticker );
+      } else if ( the_timer->the_class == TIMER_INTERVAL_ON_TASK ) {
+        Timer_server_Control *timer_server = _Timer_server;
+
+        /*
+         *  There is no way for a timer to have this class unless
+         *  it was scheduled as a server fire.  That requires that
+         *  the Timer Server be initiated.  So this error cannot
+         *  occur unless something is internally wrong.
+         */
+        #if defined(RTEMS_DEBUG)
+          if ( !timer_server ) {
+            _Thread_Enable_dispatch();
+            return RTEMS_INCORRECT_STATE;
+          }
+        #endif
+        _Watchdog_Remove( &the_timer->Ticker );
+        (*timer_server->schedule_operation)( timer_server, the_timer );
+      } else {
+        /*
+         *  Must be dormant or time of day timer (e.g. TIMER_DORMANT,
+         *  TIMER_TIME_OF_DAY, or TIMER_TIME_OF_DAY_ON_TASK).  We
+         *  can only reset active interval timers.
+         */
+        status = RTEMS_NOT_DEFINED;
+      }
+      _Thread_Enable_dispatch();
+      return status;
+
+#if defined(RTEMS_MULTIPROCESSING)
+    case OBJECTS_REMOTE:            /* should never return this */
+#endif
+    case OBJECTS_ERROR:
+      break;
+  }
+
+  return RTEMS_INVALID_ID;
+}