2010-11-24 Gedare Bloom <giddyup44@yahoo.com>

	PR 1647/cpukit
	* posix/src/nanosleep.c, posix/src/sched_yield.c,
	rtems/src/taskwakeafter.c, sapi/include/confdefs.h,
	sapi/include/rtems/config.h, sapi/src/exinit.c, score/Makefile.am,
	score/preinstall.am, score/include/rtems/score/prioritybitmap.h,
	score/include/rtems/score/thread.h,
	score/inline/rtems/score/thread.inl, score/src/thread.c,
	score/src/threadchangepriority.c, score/src/threadclearstate.c,
	score/src/threadclose.c, score/src/threadinitialize.c,
	score/src/threadready.c, score/src/threadresume.c,
	score/src/threadsetpriority.c, score/src/threadsetstate.c,
	score/src/threadsettransient.c,	score/src/threadsuspend.c,
	score/src/threadtickletimeslice.c: Refactor scheduler out of thread
	handler to facilitate alternate scheduler implementations.
	* score/src/threadyieldprocessor.c: Removed.
	* score/src/schedulerprioritythreadschedulerupdate.c,
	score/src/schedulerprioritythreadschedulerfree.c,
	score/src/schedulerpriorityblock.c, score/src/scheduler.c,
	score/src/schedulerprioritythreadschedulerallocate.c,
	score/src/schedulerpriorityunblock.c,
	score/src/schedulerpriority.c, score/src/schedulerpriorityyield.c,
	score/include/rtems/score/schedulerpriority.h,
	score/include/rtems/score/scheduler.h,
	score/inline/rtems/score/scheduler.inl,
	score/inline/rtems/score/schedulerpriority.inl: New files.

1 files changed, 66 insertions, 0 deletions

diff --git a/cpukit/score/src/schedulerpriority.c b/cpukit/score/src/schedulerpriority.c
new file mode 100644
index 0000000000..5e7ad61d9a
--- /dev/null
+++ b/cpukit/score/src/schedulerpriority.c
@@ -0,0 +1,66 @@
+/*
+ *  Scheduler Handler
+ *
+ *  Copyright (C) 2010 Gedare Bloom.
+ *
+ *  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/config.h>
+#include <rtems/score/chain.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/object.h>
+#include <rtems/score/scheduler.h>
+#include <rtems/score/schedulerpriority.h>
+#include <rtems/score/states.h>
+#include <rtems/score/thread.h>
+
+/* Instantiate any global variables needed by the priority scheduler */
+volatile Priority_bit_map_Control _Priority_Major_bit_map;
+
+Priority_bit_map_Control          _Priority_Bit_map[16] CPU_STRUCTURE_ALIGNMENT;
+
+/*
+ *  _Scheduler_priority_Initialize
+ *
+ * Initializes the scheduler for priority scheduling.
+ *
+ *  Input parameters:
+ *    the_scheduler - pointer to scheduler control
+ *
+ *  Output parameters: NONE
+ */
+
+void _Scheduler_priority_Initialize (
+    Scheduler_Control       *the_scheduler
+)
+{
+  /* the operations table is a jump table to redirect generic scheduler 
+   * function calls to scheduler implementation specific functions.  The 
+   * main purpose of scheduler initialization is to set up the jump table 
+   * for the scheduler.  Every scheduler implementation provides its own
+   * scheduler operations table.
+   */
+  the_scheduler->operations.schedule           = &_Scheduler_priority_Schedule;
+  the_scheduler->operations.yield              = &_Scheduler_priority_Yield;
+  the_scheduler->operations.block              = &_Scheduler_priority_Block;
+  the_scheduler->operations.unblock            = &_Scheduler_priority_Unblock;
+  the_scheduler->operations.scheduler_allocate = 
+      &_Scheduler_priority_Thread_scheduler_allocate;
+  the_scheduler->operations.scheduler_free     = 
+      &_Scheduler_priority_Thread_scheduler_free;
+  the_scheduler->operations.scheduler_update   = 
+      &_Scheduler_priority_Thread_scheduler_update;
+
+  _Scheduler_priority_Ready_queue_initialize( the_scheduler );
+  _Priority_bit_map_Handler_initialization( );
+}