From 52a661e8f8124b77b29a2ed44c7814fd0a7cf358 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Tue, 2 Aug 2016 08:55:00 +0200
Subject: score: Add scheduler node implementation header

Update #2556.
---
 .../score/include/rtems/score/schedulernodeimpl.h  | 134 +++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 cpukit/score/include/rtems/score/schedulernodeimpl.h

(limited to 'cpukit/score/include/rtems/score/schedulernodeimpl.h')

diff --git a/cpukit/score/include/rtems/score/schedulernodeimpl.h b/cpukit/score/include/rtems/score/schedulernodeimpl.h
new file mode 100644
index 0000000000..ecb61c239a
--- /dev/null
+++ b/cpukit/score/include/rtems/score/schedulernodeimpl.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2014, 2016 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _RTEMS_SCORE_SCHEDULERNODEIMPL_H
+#define _RTEMS_SCORE_SCHEDULERNODEIMPL_H
+
+#include <rtems/score/schedulernode.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#define SCHEDULER_NODE_OF_WAIT_CHAIN_NODE( node ) \
+  RTEMS_CONTAINER_OF( node, Scheduler_Node, Wait.Node.Chain )
+
+#define SCHEDULER_NODE_OF_WAIT_RBTREE_NODE( node ) \
+  RTEMS_CONTAINER_OF( node, Scheduler_Node, Wait.Node.RBTree )
+
+RTEMS_INLINE_ROUTINE void _Scheduler_Node_do_initialize(
+  Scheduler_Node   *node,
+  Thread_Control   *the_thread,
+  Priority_Control  priority
+)
+{
+  node->owner = the_thread;
+
+  node->Priority.value = priority;
+  node->Priority.prepend_it = false;
+
+#if defined(RTEMS_SMP)
+  node->user = the_thread;
+  node->help_state = SCHEDULER_HELP_YOURSELF;
+  node->idle = NULL;
+  node->accepts_help = the_thread;
+  _SMP_sequence_lock_Initialize( &node->Priority.Lock );
+#else
+  (void) the_thread;
+#endif
+}
+
+RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_owner(
+  const Scheduler_Node *node
+)
+{
+  return node->owner;
+}
+
+RTEMS_INLINE_ROUTINE Priority_Control _Scheduler_Node_get_priority(
+  Scheduler_Node *node,
+  bool           *prepend_it_p
+)
+{
+  Priority_Control priority;
+  bool             prepend_it;
+
+#if defined(RTEMS_SMP)
+  unsigned int     seq;
+
+  do {
+    seq = _SMP_sequence_lock_Read_begin( &node->Priority.Lock );
+#endif
+
+    priority = node->Priority.value;
+    prepend_it = node->Priority.prepend_it;
+
+#if defined(RTEMS_SMP)
+  } while ( _SMP_sequence_lock_Read_retry( &node->Priority.Lock, seq ) );
+#endif
+
+  *prepend_it_p = prepend_it;
+
+  return priority;
+}
+
+RTEMS_INLINE_ROUTINE void _Scheduler_Node_set_priority(
+  Scheduler_Node   *node,
+  Priority_Control  new_priority,
+  bool              prepend_it
+)
+{
+#if defined(RTEMS_SMP)
+  unsigned int seq;
+
+  seq = _SMP_sequence_lock_Write_begin( &node->Priority.Lock );
+#endif
+
+  node->Priority.value = new_priority;
+  node->Priority.prepend_it = prepend_it;
+
+#if defined(RTEMS_SMP)
+  _SMP_sequence_lock_Write_end( &node->Priority.Lock, seq );
+#endif
+}
+
+#if defined(RTEMS_SMP)
+RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_user(
+  const Scheduler_Node *node
+)
+{
+  return node->user;
+}
+
+RTEMS_INLINE_ROUTINE void _Scheduler_Node_set_user(
+  Scheduler_Node *node,
+  Thread_Control *user
+)
+{
+  node->user = user;
+}
+
+RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_idle(
+  const Scheduler_Node *node
+)
+{
+  return node->idle;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _RTEMS_SCORE_SCHEDULERNODEIMPL_H */
-- 
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