[svn-r17555] Description:

	Bring r17553 from trunk to 1.8 branch:

	Bring general fixes/improvements from file_free_space branch back to
trunk.

Tested on:
       FreeBSD/32 6.3 (duty) in debug mode
       FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
       Linux/32 2.6 (jam) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe,
                               in debug mode
       Linux/64-amd64 2.6 (smirom) w/Intel compilers w/default API=1.6.x,
                               w/C++ & FORTRAN, in production mode
       Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                               w/szip filter, in production mode
       Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                               in production mode
       Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in production mode
       Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
       Mac OS X/32 10.5.8 (amazon) in debug mode
       Mac OS X/32 10.5.8 (amazon) w/C++ & FORTRAN, w/threadsafe,
                               in production mode

1 files changed, 19 insertions, 16 deletions

diff --git a/src/H5Opublic.h b/src/H5Opublic.h
index ddf1a93..84fdecc 100644
--- a/src/H5Opublic.h
+++ b/src/H5Opublic.h
@@ -87,6 +87,24 @@ typedef enum H5O_type_t {
     H5O_TYPE_NTYPES             /* Number of different object types (must be last!) */
 } H5O_type_t;
 
+/* Information struct for object header metadata (for H5Oget_info/H5Oget_info_by_name/H5Oget_info_by_idx) */
+typedef struct H5O_hdr_info_t {
+    unsigned version;		/* Version number of header format in file */
+    unsigned nmesgs;		/* Number of object header messages */
+    unsigned nchunks;		/* Number of object header chunks */
+    unsigned flags;             /* Object header status flags */
+    struct {
+        hsize_t total;		/* Total space for storing object header in file */
+        hsize_t meta;		/* Space within header for object header metadata information */
+        hsize_t mesg;		/* Space within header for actual message information */
+        hsize_t free;		/* Free space within object header */
+    } space;
+    struct {
+        uint64_t present;	/* Flags to indicate presence of message type in header */
+        uint64_t shared;	/* Flags to indicate message type is shared in header */
+    } mesg;
+} H5O_hdr_info_t;
+
 /* Information struct for object (for H5Oget_info/H5Oget_info_by_name/H5Oget_info_by_idx) */
 typedef struct H5O_info_t {
     unsigned long 	fileno;		/* File number that object is located in */
@@ -98,22 +116,7 @@ typedef struct H5O_info_t {
     time_t		ctime;		/* Change time			*/
     time_t		btime;		/* Birth time			*/
     hsize_t 		num_attrs;	/* # of attributes attached to object */
-    struct {
-        unsigned version;		/* Version number of header format in file */
-        unsigned nmesgs;		/* Number of object header messages */
-        unsigned nchunks;		/* Number of object header chunks */
-        unsigned flags;                 /* Object header status flags */
-        struct {
-            hsize_t total;		/* Total space for storing object header in file */
-            hsize_t meta;		/* Space within header for object header metadata information */
-            hsize_t mesg;		/* Space within header for actual message information */
-            hsize_t free;		/* Free space within object header */
-        } space;
-        struct {
-            uint64_t present;		/* Flags to indicate presence of message type in header */
-            uint64_t shared;		/* Flags to indicate message type is shared in header */
-        } mesg;
-    } hdr;
+    H5O_hdr_info_t      hdr;            /* Object header information */
     /* Extra metadata storage for obj & attributes */
     struct {
         H5_ih_info_t   obj;             /* v1/v2 B-tree & local/fractal heap for groups, B-tree for chunked datasets */