009-08-05 Chris Johns <chrisj@rtems.org>

        * libmisc/dummy/dummy-networking.c: New.
        * libmisc/dummy/dummy.c, libmisc/Makefile.am: Move
        trhe networking configuration into a separate file so
        configuration varations do not cause conflicts.
        * score/inline/rtems/score/object.inl,
        score/include/rtems/score/object.h: Remove warnings.
        * score/inline/rtems/score/object.inl: Add _Chain_First,
        _Chain_Last, _Chain_Mext, and _Chain_Previous.
        * sapi/inline/rtems/chain.inl: Add rtems_chain_first,
        rtems_chain_last, rtems_chain_mext, and rtems_chain_previous.
        * libblock/include/rtems/diskdevs.h: Remove the bdbuf pool id and
        block_size_log2. Add media_block_size.
        * libblock/src/diskdevs.c: Remove size restrictions on block
        size. Add media block size initialisation. Remove comment to clean
        up the bdbuf cache.
        * libblock/src/blkdev.c: Remove references to
        block_size_log2. Allow any block size.
        * libblock/include/rtems/bdbuf.h, libblock/src/bdbuf.c: Remove all
        references to pools and make the cache handle demand driver
        variable buffer size allocation. Added worker threads support the
        swapout task.
        * sapi/include/confdefs.h: Updated the bdbuf configutation.

1 files changed, 63 insertions, 1 deletions

diff --git a/cpukit/score/inline/rtems/score/chain.inl b/cpukit/score/inline/rtems/score/chain.inl
index fbe406a30f..ca60aa94f5 100644
--- a/cpukit/score/inline/rtems/score/chain.inl
+++ b/cpukit/score/inline/rtems/score/chain.inl
@@ -83,7 +83,7 @@ RTEMS_INLINE_ROUTINE bool _Chain_Is_null_node(
 
 /** @brief Return pointer to Chain Head
  *
- *  This function returns a pointer to the first node on the chain.
+ *  This function returns a pointer to the head node on the chain.
  *
  *  @param[in] the_chain is the chain to be operated upon.
  *
@@ -111,6 +111,68 @@ RTEMS_INLINE_ROUTINE Chain_Node *_Chain_Tail(
    return (Chain_Node *) &the_chain->permanent_null;
 }
 
+/** @brief Return pointer to Chain's First node
+ *
+ *  This function returns a pointer to the first node on the chain after the
+ *  head.
+ *
+ *  @param[in] the_chain is the chain to be operated upon.
+ *
+ *  @return This method returns the first node of the chain.
+ */
+RTEMS_INLINE_ROUTINE Chain_Node *_Chain_First(
+  Chain_Control *the_chain
+)
+{
+  return the_chain->first;
+}
+
+/** @brief Return pointer to Chain's Last node
+ *
+ *  This function returns a pointer to the last node on the chain just before
+ *  the tail.
+ *
+ *  @param[in] the_chain is the chain to be operated upon.
+ *
+ *  @return This method returns the last node of the chain.
+ */
+RTEMS_INLINE_ROUTINE Chain_Node *_Chain_Last(
+  Chain_Control *the_chain
+)
+{
+  return the_chain->last;
+}
+
+/** @brief Return pointer the next node from this node
+ *
+ *  This function returns a pointer to the next node after this node.
+ *
+ *  @param[in] the_node is the node to be operated upon.
+ *
+ *  @return This method returns the next node on the chain.
+ */
+RTEMS_INLINE_ROUTINE Chain_Node *_Chain_Next(
+  Chain_Node *the_node
+)
+{
+  return the_node->next;
+}
+
+/** @brief Return pointer the previous node from this node
+ *
+ *  This function returns a pointer to the previous node on this chain.
+ *
+ *  @param[in] the_node is the node to be operated upon.
+ *
+ *  @return This method returns the previous node on the chain.
+ */
+RTEMS_INLINE_ROUTINE Chain_Node *_Chain_Previous(
+  Chain_Node *the_node
+)
+{
+  return the_node->previous;
+}
+
 /** @brief Is the Chain Empty
  *
  *  This function returns true if there a no nodes on @a the_chain and