1 files changed, 74 insertions, 0 deletions
diff --git a/c/src/exec/score/src/threadsettransient.c b/c/src/exec/score/src/threadsettransient.c
new file mode 100644
index 0000000000..5a2cf22a94
--- /dev/null
+++ b/c/src/exec/score/src/threadsettransient.c
@@ -0,0 +1,74 @@
+/*
+ *  Thread Handler
+ *
+ *
+ *  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 found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/score/apiext.h>
+#include <rtems/score/context.h>
+#include <rtems/score/interr.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/object.h>
+#include <rtems/score/priority.h>
+#include <rtems/score/states.h>
+#include <rtems/score/sysstate.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/threadq.h>
+#include <rtems/score/userext.h>
+#include <rtems/score/wkspace.h>
+
+/*PAGE
+ *
+ *  _Thread_Set_transient
+ *
+ *  This kernel routine places the requested thread in the transient state
+ *  which will remove it from the ready queue, if necessary.  No
+ *  rescheduling is necessary because it is assumed that the transient
+ *  state will be cleared before dispatching is enabled.
+ *
+ *  Input parameters:
+ *    the_thread - pointer to thread control block
+ *
+ *  Output parameters:  NONE
+ *
+ *  INTERRUPT LATENCY:
+ *    only case
+ */
+
+void _Thread_Set_transient(
+  Thread_Control *the_thread
+)
+{
+  ISR_Level             level;
+  unsigned32            old_state;
+  Chain_Control *ready;
+
+  ready = the_thread->ready;
+  _ISR_Disable( level );
+
+  old_state = the_thread->current_state;
+  the_thread->current_state = _States_Set( STATES_TRANSIENT, old_state );
+
+  if ( _States_Is_ready( old_state ) ) {
+    if ( _Chain_Has_only_one_node( ready ) ) {
+
+      _Chain_Initialize_empty( ready );
+      _Priority_Remove_from_bit_map( &the_thread->Priority_map );
+
+    } else
+      _Chain_Extract_unprotected( &the_thread->Object.Node );
+  }
+
+  _ISR_Enable( level );
+
+}