[svn-r17244] Description:

	Bring r17243 from trunk to 1.8 branch:

	Refactor how the layout message is created/written/read in the
dataset's object header.

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

1 files changed, 13 insertions, 1 deletions

diff --git a/src/H5Dpkg.h b/src/H5Dpkg.h
index 43b7e15..3167f56 100644
--- a/src/H5Dpkg.h
+++ b/src/H5Dpkg.h
@@ -118,6 +118,8 @@ typedef ssize_t (*H5D_layout_readvv_func_t)(const struct H5D_io_info_t *io_info,
 typedef ssize_t (*H5D_layout_writevv_func_t)(const struct H5D_io_info_t *io_info,
     size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_len_arr[], hsize_t dset_offset_arr[],
     size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[]);
+typedef herr_t (*H5D_layout_flush_func_t)(H5D_t *dataset, hid_t dxpl_id,
+    unsigned flags);
 typedef herr_t (*H5D_layout_io_term_func_t)(const struct H5D_chunk_map_t *cm);
 
 /* Typedef for grouping layout I/O routines */
@@ -134,6 +136,7 @@ typedef struct H5D_layout_ops_t {
 #endif /* H5_HAVE_PARALLEL */
     H5D_layout_readvv_func_t readvv;    /* Low-level I/O routine for reading data */
     H5D_layout_writevv_func_t writevv;  /* Low-level I/O routine for writing data */
+    H5D_layout_flush_func_t flush;      /* Low-level I/O routine for flushing raw data */
     H5D_layout_io_term_func_t io_term;  /* I/O shutdown routine */
 } H5D_layout_ops_t;
 
@@ -533,6 +536,7 @@ H5_DLL herr_t H5D_vlen_get_buf_size(void *elem, hid_t type_id, unsigned ndim,
 H5_DLL herr_t H5D_check_filters(H5D_t *dataset);
 H5_DLL herr_t H5D_set_extent(H5D_t *dataset, const hsize_t *size, hid_t dxpl_id);
 H5_DLL herr_t H5D_get_dxpl_cache(hid_t dxpl_id, H5D_dxpl_cache_t **cache);
+H5_DLL herr_t H5D_flush_sieve_buf(H5D_t *dataset, hid_t dxpl_id);
 
 /* Functions that perform direct serial I/O operations */
 H5_DLL herr_t H5D_select_read(const H5D_io_info_t *io_info,
@@ -553,6 +557,15 @@ H5_DLL herr_t H5D_scatgath_write(const H5D_io_info_t *io_info,
     const H5D_type_info_t *type_info,
     hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space);
 
+/* Functions that operate on dataset's layout information */
+H5_DLL herr_t H5D_layout_set_io_ops(const H5D_t *dataset);
+H5_DLL herr_t H5D_layout_oh_create(H5F_t *file, hid_t dxpl_id, H5O_t *oh,
+    H5D_t *dset, hid_t dapl_id);
+H5_DLL herr_t H5D_layout_oh_read(H5D_t *dset, hid_t dxpl_id, hid_t dapl_id,
+    H5P_genplist_t *plist);
+H5_DLL herr_t H5D_layout_oh_write(H5D_t *dataset, hid_t dxpl_id, H5O_t *oh,
+    unsigned update_flags);
+
 /* Functions that operate on contiguous storage */
 H5_DLL herr_t H5D_contig_alloc(H5F_t *f, hid_t dxpl_id, H5O_layout_t *layout);
 H5_DLL herr_t H5D_contig_fill(H5D_t *dset, hid_t dxpl_id);
@@ -588,7 +601,6 @@ H5_DLL void *H5D_chunk_lock(const H5D_io_info_t *io_info,
 H5_DLL herr_t H5D_chunk_unlock(const H5D_io_info_t *io_info,
     const H5D_chunk_ud_t *udata, hbool_t dirty, unsigned idx_hint, void *chunk,
     uint32_t naccessed);
-H5_DLL herr_t H5D_chunk_flush(H5D_t *dset, hid_t dxpl_id, unsigned flags);
 H5_DLL herr_t H5D_chunk_allocated(H5D_t *dset, hid_t dxpl_id, hsize_t *nbytes);
 H5_DLL herr_t H5D_chunk_allocate(H5D_t *dset, hid_t dxpl_id, hbool_t full_overwrite);
 H5_DLL herr_t H5D_chunk_prune_by_extent(H5D_t *dset, hid_t dxpl_id,