1 files changed, 87 insertions, 0 deletions
diff --git a/cpukit/rtems/src/taskwakewhen.c b/cpukit/rtems/src/taskwakewhen.c
new file mode 100644
index 0000000000..5496f55a73
--- /dev/null
+++ b/cpukit/rtems/src/taskwakewhen.c
@@ -0,0 +1,87 @@
+/*
+ *  RTEMS Task Manager
+ *
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  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/rtems/modes.h>
+#include <rtems/rtems/clock.h>
+#include <rtems/score/object.h>
+#include <rtems/score/stack.h>
+#include <rtems/score/states.h>
+#include <rtems/rtems/tasks.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/threadq.h>
+#include <rtems/score/tod.h>
+#include <rtems/score/userext.h>
+#include <rtems/score/wkspace.h>
+#include <rtems/score/apiext.h>
+#include <rtems/score/sysstate.h>
+
+/*PAGE
+ *
+ *  rtems_task_wake_when
+ *
+ *  This directive blocks the requesting thread until the given date and
+ *  time is reached.
+ *
+ *  Input parameters:
+ *    time_buffer - pointer to the time and date structure
+ *
+ *  Output parameters:
+ *    RTEMS_SUCCESSFUL - if successful
+ *    error code       - if unsuccessful
+ */
+
+rtems_status_code rtems_task_wake_when(
+  rtems_time_of_day *time_buffer
+)
+{
+  Watchdog_Interval   seconds;
+
+  if ( !_TOD_Is_set )
+    return RTEMS_NOT_DEFINED;
+
+  if ( !time_buffer )
+    return RTEMS_INVALID_ADDRESS;
+
+  time_buffer->ticks = 0;
+
+  if ( !_TOD_Validate( time_buffer ) )
+    return RTEMS_INVALID_CLOCK;
+
+  seconds = _TOD_To_seconds( time_buffer );
+
+  if ( seconds <= _TOD_Seconds_since_epoch() )
+    return RTEMS_INVALID_CLOCK;
+
+  _Thread_Disable_dispatch();
+    _Thread_Set_state( _Thread_Executing, STATES_WAITING_FOR_TIME );
+    _Watchdog_Initialize(
+      &_Thread_Executing->Timer,
+      _Thread_Delay_ended,
+      _Thread_Executing->Object.id,
+      NULL
+    );
+    _Watchdog_Insert_seconds(
+      &_Thread_Executing->Timer,
+      seconds - _TOD_Seconds_since_epoch()
+    );
+  _Thread_Enable_dispatch();
+  return RTEMS_SUCCESSFUL;
+}