change log for rtems (2010-08-23)
rtems-vc at rtems.org
rtems-vc at rtems.org
Mon Aug 23 17:10:15 UTC 2010
*sh*:
2010-08-23 Sebastian Huber <sebastian.huber at embedded-brains.de>
PR 1673/cpukit
* score/src/chainappendempty.c, score/src/chaingetempty.c,
score/src/chainprependempty.c: New files.
* score/Makefile.am: Reflect changes above.
* score/include/rtems/score/chain.h: Declare
_Chain_Append_with_empty_check(), _Chain_Prepend_with_empty_check(),
and _Chain_Get_with_empty_check().
* score/inline/rtems/score/chain.inl: Define
_Chain_Append_with_empty_check_unprotected(),
_Chain_Prepend_with_empty_check_unprotected(), and
_Chain_Get_with_empty_check_unprotected().
M 1.2579 cpukit/ChangeLog
M 1.88 cpukit/score/Makefile.am
M 1.25 cpukit/score/include/rtems/score/chain.h
M 1.22 cpukit/score/inline/rtems/score/chain.inl
A 1.1 cpukit/score/src/chainappendempty.c
A 1.1 cpukit/score/src/chaingetempty.c
A 1.1 cpukit/score/src/chainprependempty.c
diff -u rtems/cpukit/ChangeLog:1.2578 rtems/cpukit/ChangeLog:1.2579
--- rtems/cpukit/ChangeLog:1.2578 Mon Aug 23 02:59:38 2010
+++ rtems/cpukit/ChangeLog Mon Aug 23 11:10:53 2010
@@ -1,5 +1,19 @@
2010-08-23 Sebastian Huber <sebastian.huber at embedded-brains.de>
+ PR 1673/cpukit
+ * score/src/chainappendempty.c, score/src/chaingetempty.c,
+ score/src/chainprependempty.c: New files.
+ * score/Makefile.am: Reflect changes above.
+ * score/include/rtems/score/chain.h: Declare
+ _Chain_Append_with_empty_check(), _Chain_Prepend_with_empty_check(),
+ and _Chain_Get_with_empty_check().
+ * score/inline/rtems/score/chain.inl: Define
+ _Chain_Append_with_empty_check_unprotected(),
+ _Chain_Prepend_with_empty_check_unprotected(), and
+ _Chain_Get_with_empty_check_unprotected().
+
+2010-08-23 Sebastian Huber <sebastian.huber at embedded-brains.de>
+
PR 1671/cpukit
* libcsupport/include/rtems/gxx_wrappers.h: New file.
* libcsupport/Makefile.am, libcsupport/preinstall.am: Reflect change
diff -u rtems/cpukit/score/Makefile.am:1.87 rtems/cpukit/score/Makefile.am:1.88
--- rtems/cpukit/score/Makefile.am:1.87 Thu Jul 29 12:52:09 2010
+++ rtems/cpukit/score/Makefile.am Mon Aug 23 11:10:53 2010
@@ -200,6 +200,7 @@
## STD_C_FILES
libscore_a_SOURCES += src/apiext.c src/chain.c src/chainappend.c \
src/chainextract.c src/chainget.c src/chaininsert.c \
+ src/chainappendempty.c src/chainprependempty.c src/chaingetempty.c \
src/interr.c src/isr.c src/wkspace.c
EXTRA_DIST = src/Unlimited.txt
diff -u rtems/cpukit/score/include/rtems/score/chain.h:1.24 rtems/cpukit/score/include/rtems/score/chain.h:1.25
--- rtems/cpukit/score/include/rtems/score/chain.h:1.24 Mon Nov 30 07:20:29 2009
+++ rtems/cpukit/score/include/rtems/score/chain.h Mon Aug 23 11:10:53 2010
@@ -1,11 +1,14 @@
/**
- * @file rtems/score/chain.h
+ * @file
*
- * This include file contains all the constants and structures associated
- * with the Doubly-Linked Chain Handler.
+ * @ingroup ScoreChain
+ *
+ * @brief Chain Handler API.
*/
/*
+ * Copyright (c) 2010 embedded brains GmbH.
+ *
* COPYRIGHT (c) 1989-2006.
* On-Line Applications Research Corporation (OAR).
*
@@ -22,6 +25,8 @@
/**
* @defgroup ScoreChain Chain Handler
*
+ * @ingroup Score
+ *
* The Chain Handler is used to manage sets of entities. This handler
* provides two data structures. The Chain Node data structure is included
* as the first part of every data structure that will be placed on
@@ -185,6 +190,66 @@
Chain_Node *the_node
);
+/**
+ * @brief Append a node and check if the chain was empty before.
+ *
+ * This routine appends the_node onto the end of the_chain.
+ *
+ * @param[in] the_chain is the chain to be operated upon.
+ * @param[in] the_node is the node to be appended.
+ *
+ * @note It disables interrupts to ensure the atomicity of the append
+ * operation.
+ *
+ * @retval true The chain was empty before.
+ * @retval false The chain contained at least one node before.
+ */
+bool _Chain_Append_with_empty_check(
+ Chain_Control *the_chain,
+ Chain_Node *the_node
+);
+
+/**
+ * @brief Prepend a node and check if the chain was empty before.
+ *
+ * This routine prepends the_node onto the front of the_chain.
+ *
+ * @param[in] the_chain is the chain to be operated upon.
+ * @param[in] the_node is the node to be prepended.
+ *
+ * @note It disables interrupts to ensure the atomicity of the append
+ * operation.
+ *
+ * @retval true The chain was empty before.
+ * @retval false The chain contained at least one node before.
+ */
+bool _Chain_Prepend_with_empty_check(
+ Chain_Control *the_chain,
+ Chain_Node *the_node
+);
+
+/**
+ * @brief Get the first node and check if the chain is empty afterwards.
+ *
+ * This function removes the first node from the_chain and returns
+ * a pointer to that node in @a the_node. If the_chain is empty, then NULL is
+ * returned.
+ *
+ * @param[in] the_chain is the chain to attempt to get the first node from.
+ * @param[out] the_node is the first node on the chain or NULL if the chain is
+ * empty.
+ *
+ * @note It disables interrupts to ensure the atomicity of the append
+ * operation.
+ *
+ * @retval true The chain is empty now.
+ * @retval false The chain contains at least one node now.
+ */
+bool _Chain_Get_with_empty_check(
+ Chain_Control *the_chain,
+ Chain_Node **the_node
+);
+
#ifndef __RTEMS_APPLICATION__
#include <rtems/score/chain.inl>
#endif
diff -u rtems/cpukit/score/inline/rtems/score/chain.inl:1.21 rtems/cpukit/score/inline/rtems/score/chain.inl:1.22
--- rtems/cpukit/score/inline/rtems/score/chain.inl:1.21 Thu Oct 8 02:07:36 2009
+++ rtems/cpukit/score/inline/rtems/score/chain.inl Mon Aug 23 11:10:53 2010
@@ -1,15 +1,14 @@
/**
- * @file rtems/score/chain.inl
+ * @file
*
- * This include file contains the bodies of the routines which are
- * associated with doubly linked chains and inlined.
+ * @ingroup ScoreChain
*
- * @note The routines in this file are ordered from simple
- * to complex. No other Chain Handler routine is referenced
- * unless it has already been defined.
+ * @brief Chain Handler API.
*/
/*
+ * Copyright (c) 2010 embedded brains GmbH.
+ *
* COPYRIGHT (c) 1989-2006.
* On-Line Applications Research Corporation (OAR).
*
@@ -481,6 +480,99 @@
_Chain_Insert(_Chain_Head(the_chain), the_node);
}
+/**
+ * @brief Append a node and check if the chain was empty before (unprotected).
+ *
+ * This routine appends the_node onto the end of the_chain.
+ *
+ * @param[in] the_chain is the chain to be operated upon.
+ * @param[in] the_node is the node to be appended.
+ *
+ * @note It does NOT disable interrupts to ensure the atomicity of the
+ * append operation.
+ *
+ * @retval true The chain was empty before.
+ * @retval false The chain contained at least one node before.
+ */
+RTEMS_INLINE_ROUTINE bool _Chain_Append_with_empty_check_unprotected(
+ Chain_Control *the_chain,
+ Chain_Node *the_node
+)
+{
+ bool was_empty = _Chain_Is_empty( the_chain );
+
+ _Chain_Append_unprotected( the_chain, the_node );
+
+ return was_empty;
+}
+
+/**
+ * @brief Prepend a node and check if the chain was empty before (unprotected).
+ *
+ * This routine prepends the_node onto the front of the_chain.
+ *
+ * @param[in] the_chain is the chain to be operated upon.
+ * @param[in] the_node is the node to be prepended.
+ *
+ * @note It does NOT disable interrupts to ensure the atomicity of the
+ * prepend operation.
+ *
+ * @retval true The chain was empty before.
+ * @retval false The chain contained at least one node before.
+ */
+RTEMS_INLINE_ROUTINE bool _Chain_Prepend_with_empty_check_unprotected(
+ Chain_Control *the_chain,
+ Chain_Node *the_node
+)
+{
+ bool was_empty = _Chain_Is_empty( the_chain );
+
+ _Chain_Prepend_unprotected( the_chain, the_node );
+
+ return was_empty;
+}
+
+/**
+ * @brief Get the first node and check if the chain is empty afterwards
+ * (unprotected).
+ *
+ * This function removes the first node from the_chain and returns
+ * a pointer to that node in @a the_node. If the_chain is empty, then NULL is
+ * returned.
+ *
+ * @param[in] the_chain is the chain to attempt to get the first node from.
+ * @param[out] the_node is the first node on the chain or NULL if the chain is
+ * empty.
+ *
+ * @note It does NOT disable interrupts to ensure the atomicity of the
+ * get operation.
+ *
+ * @retval true The chain is empty now.
+ * @retval false The chain contains at least one node now.
+ */
+RTEMS_INLINE_ROUTINE bool _Chain_Get_with_empty_check_unprotected(
+ Chain_Control *the_chain,
+ Chain_Node **the_node
+)
+{
+ bool is_empty_now = true;
+ Chain_Node *first = the_chain->first;
+
+ if ( first != _Chain_Tail( the_chain ) ) {
+ Chain_Node *new_first = first->next;
+
+ the_chain->first = new_first;
+ new_first->previous = _Chain_Head( the_chain );
+
+ *the_node = first;
+
+ is_empty_now = new_first == _Chain_Tail( the_chain );
+ } else
+ *the_node = NULL;
+
+ return is_empty_now;
+}
+
/**@}*/
#endif
diff -u /dev/null rtems/cpukit/score/src/chainappendempty.c:1.1
--- /dev/null Mon Aug 23 12:10:15 2010
+++ rtems/cpukit/score/src/chainappendempty.c Mon Aug 23 11:10:53 2010
@@ -0,0 +1,44 @@
+/**
+ * @file
+ *
+ * @ingroup ScoreChain
+ *
+ * @brief _Chain_Append_with_empty_check() implementation.
+ */
+
+/*
+ * Copyright (c) 2010 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * 82178 Puchheim
+ * Germany
+ * <rtems at 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/system.h>
+#include <rtems/score/chain.h>
+#include <rtems/score/isr.h>
+
+bool _Chain_Append_with_empty_check(
+ Chain_Control *chain,
+ Chain_Node *node
+)
+{
+ ISR_Level level;
+ bool was_empty;
+
+ _ISR_Disable( level );
+ was_empty = _Chain_Append_with_empty_check_unprotected( chain, node );
+ _ISR_Enable( level );
+
+ return was_empty;
+}
diff -u /dev/null rtems/cpukit/score/src/chaingetempty.c:1.1
--- /dev/null Mon Aug 23 12:10:15 2010
+++ rtems/cpukit/score/src/chaingetempty.c Mon Aug 23 11:10:53 2010
@@ -0,0 +1,44 @@
+/**
+ * @file
+ *
+ * @ingroup ScoreChain
+ *
+ * @brief _Chain_Get_with_empty_check() implementation.
+ */
+
+/*
+ * Copyright (c) 2010 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * 82178 Puchheim
+ * Germany
+ * <rtems at 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/system.h>
+#include <rtems/score/chain.h>
+#include <rtems/score/isr.h>
+
+bool _Chain_Get_with_empty_check(
+ Chain_Control *chain,
+ Chain_Node **node
+)
+{
+ ISR_Level level;
+ bool is_empty_now;
+
+ _ISR_Disable( level );
+ is_empty_now = _Chain_Get_with_empty_check_unprotected( chain, node );
+ _ISR_Enable( level );
+
+ return is_empty_now;
+}
diff -u /dev/null rtems/cpukit/score/src/chainprependempty.c:1.1
--- /dev/null Mon Aug 23 12:10:15 2010
+++ rtems/cpukit/score/src/chainprependempty.c Mon Aug 23 11:10:53 2010
@@ -0,0 +1,44 @@
+/**
+ * @file
+ *
+ * @ingroup ScoreChain
+ *
+ * @brief _Chain_Prepend_with_empty_check() implementation.
+ */
+
+/*
+ * Copyright (c) 2010 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * 82178 Puchheim
+ * Germany
+ * <rtems at 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/system.h>
+#include <rtems/score/chain.h>
+#include <rtems/score/isr.h>
+
+bool _Chain_Prepend_with_empty_check(
+ Chain_Control *chain,
+ Chain_Node *node
+)
+{
+ ISR_Level level;
+ bool was_empty;
+
+ _ISR_Disable( level );
+ was_empty = _Chain_Prepend_with_empty_check_unprotected( chain, node );
+ _ISR_Enable( level );
+
+ return was_empty;
+}
--
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