1 files changed, 71 insertions, 0 deletions
diff --git a/cpukit/rtems/src/taskvariabledelete.c b/cpukit/rtems/src/taskvariabledelete.c
new file mode 100644
index 0000000000..8bc214665b
--- /dev/null
+++ b/cpukit/rtems/src/taskvariabledelete.c
@@ -0,0 +1,71 @@
+/*
+ *  rtems_task_variable_delete - Delete a per-task variable
+ *
+ *
+ *  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/tasks.h>
+#include <rtems/score/wkspace.h>
+
+/*
+ *  rtems_task_variable_delete
+ *
+ *  This directive removes a task variable. 
+ */
+
+rtems_status_code rtems_task_variable_delete(
+  rtems_id  tid,
+  int      *ptr
+)
+{
+  Thread_Control               *the_thread;
+  Objects_Locations             location;
+  RTEMS_API_Control            *api;
+  struct rtems_task_variable_t *tvp, *prev;
+
+  prev = NULL;
+
+  the_thread = _Thread_Get (tid, &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;
+
+  default:
+    return RTEMS_INTERNAL_ERROR;
+
+  case OBJECTS_LOCAL:
+    api = the_thread->API_Extensions[ THREAD_API_RTEMS ];
+    tvp = api->task_variables;
+    while (tvp) {
+      if (tvp->ptr == ptr) {
+        if (prev) prev->next = tvp->next;
+        else      api->task_variables = tvp->next;
+        _Thread_Enable_dispatch();
+        _Workspace_Free(tvp);
+        return RTEMS_SUCCESSFUL;
+      }
+      prev = tvp;
+      tvp = tvp->next;
+    }
+    _Thread_Enable_dispatch();
+    return RTEMS_INVALID_ADDRESS;
+  }
+
+  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */
+}