[svn-r12771] Description:

    More fixes to make the I/O & memory operations more efficient when loading
& flushing object header chunks.

    Add in concept of a chunk having a "gap" at the end - unused space that is
not large enough to hold a full null message that describes it.

    Clean up formatting a bit.

    Latest version of object header format not enabled yet, still working on a
few bugs...

Tested on:
    Linux/32 2.6 (chicago)
    Linux/64 2.6 (chicago2)

1 files changed, 3 insertions, 1 deletions

diff --git a/src/H5Opkg.h b/src/H5Opkg.h
index 4886153..2b52b79 100644
--- a/src/H5Opkg.h
+++ b/src/H5Opkg.h
@@ -107,7 +107,8 @@
                    3)	/*reserved		*/			      \
         :								      \
                 (2 +	/*message type		*/			      \
-                    2) 	/*sizeof message data	*/			      \
+                   2 + 	/*sizeof message data	*/			      \
+                   1)	/*flags              	*/			      \
     )
 #define H5O_SIZEOF_MSGHDR_OH(O)						      \
      H5O_SIZEOF_MSGHDR_VERS((O)->version)
@@ -174,6 +175,7 @@ typedef struct H5O_chunk_t {
     hbool_t	dirty;			/*dirty flag			     */
     haddr_t	addr;			/*chunk file address		     */
     size_t	size;			/*chunk size			     */
+    size_t	gap;			/*space at end of chunk too small for null message */
     uint8_t	*image;			/*image of file			     */
 } H5O_chunk_t;