New directive added -- rtems_task_is_suspended.

c/src/exec/rtems/src/Makefile.in

@@ -23,7 +23,7 @@ MP_C_PIECES_yes_V = eventmp mp msgmp partmp regionmp semmp signalmp taskmp
 MP_C_PIECES = $(MP_C_PIECES_$(HAS_MP)_V)
 
 TASK_C_PIECES = tasks taskcreate taskdelete taskgetnote taskident \
-    taskinitusers taskmode taskrestart taskresume tasksetnote \
+    taskinitusers taskissuspended taskmode taskrestart taskresume tasksetnote \
     tasksetpriority taskstart tasksuspend taskwakeafter taskwakewhen
 
 RATEMON_C_PIECES = ratemon ratemoncancel ratemoncreate ratemondelete \

c/src/exec/rtems/src/taskissuspended.c

@@ -0,0 +1,76 @@
+/*
+ *  RTEMS Task Manager
+ *
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/rtems/modes.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_is_suspended
+ *
+ *  This directive returns a status indicating whether or not
+ *  the specified task is suspended.
+ *
+ *  Input parameters:
+ *    id - thread id
+ *
+ *  Output parameters:
+ *    RTEMS_SUCCESSFUL        - if successful and not suspended
+ *    RTEMS_ALREADY_SUSPENDED - if successful and suspended
+ *    error code              - if unsuccessful
+ */
+
+rtems_status_code rtems_task_is_suspended(
+  Objects_Id id
+)
+{
+  register Thread_Control *the_thread;
+  Objects_Locations        location;
+
+  the_thread = _Thread_Get( id, &location );
+  switch ( location ) {
+
+    case OBJECTS_REMOTE:
+
+#if defined(RTEMS_MULTIPROCESSING)
+      _Thread_Dispatch();
+      return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
+#endif
+
+    case OBJECTS_ERROR:
+      return RTEMS_INVALID_ID;
+
+    case OBJECTS_LOCAL:
+      if ( !_States_Is_suspended( the_thread->current_state ) ) {
+        _Thread_Enable_dispatch();
+        return RTEMS_SUCCESSFUL;
+      }
+      _Thread_Enable_dispatch();
+      return RTEMS_ALREADY_SUSPENDED;
+  }
+}

cpukit/rtems/src/taskissuspended.c

@@ -0,0 +1,76 @@
+/*
+ *  RTEMS Task Manager
+ *
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/rtems/modes.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_is_suspended
+ *
+ *  This directive returns a status indicating whether or not
+ *  the specified task is suspended.
+ *
+ *  Input parameters:
+ *    id - thread id
+ *
+ *  Output parameters:
+ *    RTEMS_SUCCESSFUL        - if successful and not suspended
+ *    RTEMS_ALREADY_SUSPENDED - if successful and suspended
+ *    error code              - if unsuccessful
+ */
+
+rtems_status_code rtems_task_is_suspended(
+  Objects_Id id
+)
+{
+  register Thread_Control *the_thread;
+  Objects_Locations        location;
+
+  the_thread = _Thread_Get( id, &location );
+  switch ( location ) {
+
+    case OBJECTS_REMOTE:
+
+#if defined(RTEMS_MULTIPROCESSING)
+      _Thread_Dispatch();
+      return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
+#endif
+
+    case OBJECTS_ERROR:
+      return RTEMS_INVALID_ID;
+
+    case OBJECTS_LOCAL:
+      if ( !_States_Is_suspended( the_thread->current_state ) ) {
+        _Thread_Enable_dispatch();
+        return RTEMS_SUCCESSFUL;
+      }
+      _Thread_Enable_dispatch();
+      return RTEMS_ALREADY_SUSPENDED;
+  }
+}