score: PR2136: Fix _Thread_Change_priority()

Add call to _Scheduler_Schedule() in missing path after
_Thread_Set_transient() in _Thread_Change_priority().  See also
sptests/spintrcritical19.

Add thread parameter to _Scheduler_Schedule().  This parameter is
currently unused but may be used in future SMP schedulers.

Do heir selection in _Scheduler_Schedule().  Use
_Scheduler_Update_heir() for this in the particular scheduler
implementation.

Add and use _Scheduler_Generic_block().

1 files changed, 56 insertions, 0 deletions

diff --git a/cpukit/score/include/rtems/score/scheduleredfimpl.h b/cpukit/score/include/rtems/score/scheduleredfimpl.h
new file mode 100644
index 0000000000..04201bcdfc
--- /dev/null
+++ b/cpukit/score/include/rtems/score/scheduleredfimpl.h
@@ -0,0 +1,56 @@
+/**
+ * @file
+ *
+ * @ingroup ScoreSchedulerEDF
+ *
+ * @brief EDF Scheduler Implementation
+ */
+
+/*
+ *  Copryight (c) 2011 Petr Benes.
+ *  Copyright (C) 2011 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.
+ */
+
+#ifndef _RTEMS_SCORE_SCHEDULEREDFIMPL_H
+#define _RTEMS_SCORE_SCHEDULEREDFIMPL_H
+
+#include <rtems/score/scheduleredf.h>
+#include <rtems/score/schedulerimpl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @addtogroup ScoreSchedulerEDF EDF
+ *
+ * @{
+ */
+
+RTEMS_INLINE_ROUTINE void _Scheduler_EDF_Schedule_body(
+  Thread_Control *thread,
+  bool force_dispatch
+)
+{
+  RBTree_Node *first = _RBTree_First(&_Scheduler_EDF_Ready_queue, RBT_LEFT);
+  Scheduler_EDF_Per_thread *sched_info =
+    _RBTree_Container_of(first, Scheduler_EDF_Per_thread, Node);
+  Thread_Control *heir = (Thread_Control *) sched_info->thread;
+
+  ( void ) thread;
+
+  _Scheduler_Update_heir( heir, force_dispatch );
+}
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */