2010-08-24 Sebastian Huber <sebastian.huber@embedded-brains.de>

	PR 1673/cpukit
	* sapi/src/chainappendnotify.c, sapi/src/chaingetnotify.c,
	sapi/src/chaingetwait.c, sapi/src/chainprependnotify.c: New files.
	* sapi/Makefile.am: Reflect changes above.
	* sapi/include/rtems/chain.h: Declare
	rtems_chain_append_with_notification(),
	rtems_chain_prepend_with_notification(),
	rtems_chain_get_with_notification(), and rtems_chain_get_with_wait().
	* sapi/inline/rtems/chain.inl: Define
	rtems_chain_append_with_empty_check(),
	rtems_chain_prepend_with_empty_check(), and
	rtems_chain_get_with_empty_check().

1 files changed, 44 insertions, 0 deletions

diff --git a/cpukit/sapi/src/chaingetnotify.c b/cpukit/sapi/src/chaingetnotify.c
new file mode 100644
index 0000000000..88f411b4f9
--- /dev/null
+++ b/cpukit/sapi/src/chaingetnotify.c
@@ -0,0 +1,44 @@
+/**
+ * @file
+ *
+ * @ingroup ClassicChains
+ *
+ * @brief rtems_chain_get_with_notification() implementation.
+ */
+
+/*
+ * Copyright (c) 2010 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  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.com/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/chain.h>
+
+rtems_status_code rtems_chain_get_with_notification(
+  rtems_chain_control *chain,
+  rtems_id task,
+  rtems_event_set events,
+  rtems_chain_node **node
+)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+  bool is_empty = rtems_chain_get_with_empty_check( chain, node );
+
+  if ( is_empty ) {
+    sc = rtems_event_send( task, events );
+  }
+
+  return sc;
+}