1 files changed, 109 insertions, 0 deletions
diff --git a/cpukit/rtems/src/timerserverfireafter.c b/cpukit/rtems/src/timerserverfireafter.c
new file mode 100644
index 0000000000..a0af568865
--- /dev/null
+++ b/cpukit/rtems/src/timerserverfireafter.c
@@ -0,0 +1,109 @@
+/*
+ *  Timer Manager - rtems_timer_server fire_after 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_server_fire_after
+ *
+ *  This directive allows a thread to start a timer which will by
+ *  executed by the Timer Server when it fires.
+ *
+ *  Input parameters:
+ *    id        - timer id
+ *    ticks     - interval until routine is fired
+ *    routine   - routine to schedule
+ *    user_data - passed as argument to routine when it is fired
+ *
+ *  Output parameters:
+ *    RTEMS_SUCCESSFUL - if successful
+ *    error code       - if unsuccessful
+ */
+
+rtems_status_code rtems_timer_server_fire_after(
+  rtems_id                           id,
+  rtems_interval                     ticks,
+  rtems_timer_service_routine_entry  routine,
+  void                              *user_data
+)
+{
+  Timer_Control        *the_timer;
+  Objects_Locations     location;
+  ISR_Level             level;
+  Timer_server_Control *timer_server = _Timer_server;
+
+  if ( !timer_server )
+    return RTEMS_INCORRECT_STATE;
+
+  if ( !routine )
+    return RTEMS_INVALID_ADDRESS;
+
+  if ( ticks == 0 )
+    return RTEMS_INVALID_NUMBER;
+
+  the_timer = _Timer_Get( id, &location );
+  switch ( location ) {
+
+    case OBJECTS_LOCAL:
+      (void) _Watchdog_Remove( &the_timer->Ticker );
+
+      _ISR_Disable( level );
+
+        /*
+         *  Check to see if the watchdog has just been inserted by a
+         *  higher priority interrupt.  If so, abandon this insert.
+         */
+
+        if ( the_timer->Ticker.state != WATCHDOG_INACTIVE ) {
+          _ISR_Enable( level );
+          _Thread_Enable_dispatch();
+          return RTEMS_SUCCESSFUL;
+        }
+
+        /*
+         *  OK.  Now we now the timer was not rescheduled by an interrupt
+         *  so we can atomically initialize it as in use.
+         */
+
+        the_timer->the_class = TIMER_INTERVAL_ON_TASK;
+        _Watchdog_Initialize( &the_timer->Ticker, routine, id, user_data );
+        the_timer->Ticker.initial = ticks;
+      _ISR_Enable( level );
+
+      (*timer_server->schedule_operation)( timer_server, the_timer );
+
+      _Thread_Enable_dispatch();
+      return RTEMS_SUCCESSFUL;
+
+#if defined(RTEMS_MULTIPROCESSING)
+    case OBJECTS_REMOTE:            /* should never return this */
+#endif
+    case OBJECTS_ERROR:
+      break;
+  }
+
+  return RTEMS_INVALID_ID;
+}