1 files changed, 118 insertions, 0 deletions
diff --git a/cpukit/rtems/src/ratemongetstatus.c b/cpukit/rtems/src/ratemongetstatus.c
new file mode 100644
index 0000000000..c18b5b57ba
--- /dev/null
+++ b/cpukit/rtems/src/ratemongetstatus.c
@@ -0,0 +1,118 @@
+/*
+ *  Rate Monotonic Manager -- Get Status
+ *
+ *  COPYRIGHT (c) 1989-2009.
+ *  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/isr.h>
+#include <rtems/score/object.h>
+#include <rtems/rtems/ratemon.h>
+#include <rtems/score/thread.h>
+
+#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
+  #include <rtems/score/timespec.h>
+#endif
+
+/*PAGE
+ *
+ *  rtems_rate_monotonic_get_status
+ *
+ *  This directive allows a thread to obtain status information on a
+ *  period.
+ *
+ *  Input parameters:
+ *    id     - rate monotonic id
+ *    status - pointer to status control block
+ *
+ *  Output parameters:
+ *    RTEMS_SUCCESSFUL - if successful
+ *    error code       - if unsuccessful
+ *
+ */
+
+rtems_status_code rtems_rate_monotonic_get_status(
+  rtems_id                            id,
+  rtems_rate_monotonic_period_status *status
+)
+{
+  Thread_CPU_usage_t             executed;
+  Objects_Locations              location;
+  Rate_monotonic_Period_time_t   since_last_period;
+  Rate_monotonic_Control        *the_period;
+  bool                           valid_status;
+
+  if ( !status )
+    return RTEMS_INVALID_ADDRESS;
+
+  the_period = _Rate_monotonic_Get( id, &location );
+  switch ( location ) {
+
+    case OBJECTS_LOCAL:
+      status->owner = the_period->owner->Object.id;
+      status->state = the_period->state;
+
+      /*
+       *  If the period is inactive, there is no information.
+       */
+      if ( status->state == RATE_MONOTONIC_INACTIVE ) {
+        #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
+          _Timespec_Set_to_zero( &status->since_last_period );
+          _Timespec_Set_to_zero( &status->executed_since_last_period );
+        #else
+          status->since_last_period = 0;
+          status->executed_since_last_period = 0;
+        #endif
+
+      } else {
+
+        /*
+         *  Grab the current status.
+         */
+        valid_status =
+          _Rate_monotonic_Get_status(
+            the_period, &since_last_period, &executed
+          );
+        if (!valid_status) {
+          _Thread_Enable_dispatch();
+          return RTEMS_NOT_DEFINED;
+        }
+
+        #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
+          _Timestamp_To_timespec(
+            &since_last_period, &status->since_last_period
+          );
+          _Timestamp_To_timespec(
+            &executed, &status->executed_since_last_period
+          );
+        #else
+          status->since_last_period = since_last_period;
+          status->executed_since_last_period = executed;
+        #endif
+      }
+
+      _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;
+}