[svn-r19248] Description:

	Bring r19247 from trunk to 1.8 branch:

    Bring r19246 from Coverity branch to trunk:

    Improve metadata "accumulator" for files to track the dirty region within
the accumulator data.  This allows the accumulator to drop clean data and
reduces the number of I/O operations when it is dirtied.

    This is progress toward Bz#1142 - speeding up the fheap test (which it
doesn't help much, actually, but it does help other aspects of file I/O).

Tested on:
    FreeBSD/32 6.3 (duty) in debug mode
    (h5committested on trunk)

1 files changed, 2 insertions, 0 deletions

diff --git a/src/H5Fpkg.h b/src/H5Fpkg.h
index 33c56f9..091a0d7 100644
--- a/src/H5Fpkg.h
+++ b/src/H5Fpkg.h
@@ -140,6 +140,8 @@ typedef struct H5F_meta_accum_t {
     haddr_t             loc;            /* File location (offset) of the accumulated metadata */
     size_t              size;           /* Size of the accumulated metadata buffer used (in bytes) */
     size_t              alloc_size;     /* Size of the accumulated metadata buffer allocated (in bytes) */
+    size_t              dirty_off;      /* Offset of the dirty region in the accumulator buffer */
+    size_t              dirty_len;      /* Length of the dirty region in the accumulator buffer */
     hbool_t             dirty;          /* Flag to indicate that the accumulated metadata is dirty */
 } H5F_meta_accum_t;