[svn-r14860] Description:

	Omnibus raw data I/O revisions, with wide-ranging changes and
refactoring, in order to prepare for implementing "fast append" feature.

	These changes remove the majority of the code duplication for raw data
I/O which has crept in over the last ten years and introduces a more object-
oriented design for operating on different types of dataset storage.

	Chunked storage no longer has it's own I/O routines, it is now handled
as either contiguous (if chunk is not pulled into the cache) or compact (if the
chunk is cached in memory).

	No bug or feature changes, at least intentionally... :-)

Tested on:
        FreeBSD/32 6.2 (duty) in debug mode
        FreeBSD/64 6.2 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (kagiso) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe,
                                in debug mode
        Linux/64-amd64 2.6 (smirom) w/default API=1.6.x, w/C++ & FORTRAN,
                                in production mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                                in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                                w/szip filter, in production mode
        Mac OS X/32 10.5.2 (amazon) in debug mode
        Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in production mode
	

1 files changed, 73 insertions, 18 deletions

diff --git a/src/H5Dcompact.c b/src/H5Dcompact.c
index 2e4d3f7..c3abab6 100644
--- a/src/H5Dcompact.c
+++ b/src/H5Dcompact.c
@@ -41,22 +41,52 @@
 #include "H5Oprivate.h"		/* Object headers		  	*/
 #include "H5Vprivate.h"		/* Vector and array functions		*/
 
+
 /****************/
 /* Local Macros */
 /****************/
 
+
 /******************/
 /* Local Typedefs */
 /******************/
 
+
 /********************/
 /* Local Prototypes */
 /********************/
 
+/* Layout operation callbacks */
+static herr_t H5D_compact_io_init(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,
+    H5D_chunk_map_t *cm);
+static ssize_t H5D_compact_readvv(const H5D_io_info_t *io_info,
+    size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_size_arr[], hsize_t dset_offset_arr[],
+    size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_size_arr[], hsize_t mem_offset_arr[]);
+static ssize_t H5D_compact_writevv(const H5D_io_info_t *io_info,
+    size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_size_arr[], hsize_t dset_offset_arr[],
+    size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_size_arr[], hsize_t mem_offset_arr[]);
+
+
 /*********************/
 /* Package Variables */
 /*********************/
 
+/* Compact storage layout I/O ops */
+const H5D_layout_ops_t H5D_LOPS_COMPACT[1] = {{
+    H5D_compact_io_init,
+    H5D_contig_read,
+    H5D_contig_write,
+#ifdef H5_HAVE_PARALLEL
+    NULL,
+    NULL,
+#endif /* H5_HAVE_PARALLEL */
+    H5D_compact_readvv,
+    H5D_compact_writevv,
+    NULL
+}};
+
+
 /*******************/
 /* Local Variables */
 /*******************/
@@ -64,6 +94,7 @@
 /* Declare extern the free list to manage blocks of type conversion data */
 H5FL_BLK_EXTERN(type_conv);
 
+
 
 /*-------------------------------------------------------------------------
  * Function:	H5D_compact_fill
@@ -118,6 +149,32 @@ done:
 
 
 /*-------------------------------------------------------------------------
+ * Function:	H5D_compact_io_init
+ *
+ * Purpose:	Performs initialization before any sort of I/O on the raw data
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Quincey Koziol
+ *              Thursday, March 20, 2008
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5D_compact_io_init(const H5D_io_info_t *io_info, const H5D_type_info_t UNUSED *type_info,
+    hsize_t UNUSED nelmts, const H5S_t UNUSED *file_space, const H5S_t UNUSED *mem_space,
+    H5D_chunk_map_t UNUSED *cm)
+{
+    FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5D_compact_io_init)
+
+    io_info->store->compact.buf = io_info->dset->shared->layout.u.compact.buf;
+    io_info->store->compact.dirty = &io_info->dset->shared->layout.u.compact.dirty;
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5D_compact_io_init() */
+
+
+/*-------------------------------------------------------------------------
  * Function:    H5D_compact_readvv
  *
  * Purpose:     Reads some data vectors from a dataset into a buffer.
@@ -135,20 +192,19 @@ done:
  *
  *-------------------------------------------------------------------------
  */
-ssize_t
+static ssize_t
 H5D_compact_readvv(const H5D_io_info_t *io_info,
     size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_size_arr[], hsize_t dset_offset_arr[],
-    size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_size_arr[], hsize_t mem_offset_arr[],
-    haddr_t UNUSED addr, void UNUSED *pointer/*in*/, void *buf)
+    size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_size_arr[], hsize_t mem_offset_arr[])
 {
-    ssize_t ret_value;          /* Return value */
+    ssize_t ret_value;                  /* Return value */
 
-    FUNC_ENTER_NOAPI(H5D_compact_readvv, FAIL)
+    FUNC_ENTER_NOAPI_NOINIT(H5D_compact_readvv)
 
-    assert(io_info->dset);
+    HDassert(io_info);
 
     /* Use the vectorized memory copy routine to do actual work */
-    if((ret_value=H5V_memcpyvv(buf,mem_max_nseq,mem_curr_seq,mem_size_arr,mem_offset_arr,io_info->dset->shared->layout.u.compact.buf,dset_max_nseq,dset_curr_seq,dset_size_arr,dset_offset_arr))<0)
+    if((ret_value = H5V_memcpyvv(io_info->u.rbuf, mem_max_nseq, mem_curr_seq, mem_size_arr, mem_offset_arr, io_info->store->compact.buf, dset_max_nseq, dset_curr_seq, dset_size_arr, dset_offset_arr)) < 0)
         HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "vectorized memcpy failed")
 
 done:
@@ -177,24 +233,23 @@ done:
  *
  *-------------------------------------------------------------------------
  */
-ssize_t
+static ssize_t
 H5D_compact_writevv(const H5D_io_info_t *io_info,
     size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_size_arr[], hsize_t dset_offset_arr[],
-    size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_size_arr[], hsize_t mem_offset_arr[],
-    haddr_t UNUSED addr, void UNUSED *pointer/*in*/, const void *buf)
+    size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_size_arr[], hsize_t mem_offset_arr[])
 {
-    ssize_t ret_value;          /* Return value */
+    ssize_t ret_value;                  /* Return value */
 
-    FUNC_ENTER_NOAPI(H5D_compact_writevv, FAIL)
+    FUNC_ENTER_NOAPI_NOINIT(H5D_compact_writevv)
 
-    assert(io_info->dset);
+    HDassert(io_info);
 
     /* Use the vectorized memory copy routine to do actual work */
-    if((ret_value=H5V_memcpyvv(io_info->dset->shared->layout.u.compact.buf,dset_max_nseq,dset_curr_seq,dset_size_arr,dset_offset_arr,buf,mem_max_nseq,mem_curr_seq,mem_size_arr,mem_offset_arr))<0)
+    if((ret_value = H5V_memcpyvv(io_info->store->compact.buf, dset_max_nseq, dset_curr_seq, dset_size_arr, dset_offset_arr, io_info->u.wbuf, mem_max_nseq, mem_curr_seq, mem_size_arr, mem_offset_arr)) < 0)
         HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "vectorized memcpy failed")
 
     /* Mark the compact dataset's buffer as dirty */
-    io_info->dset->shared->layout.u.compact.dirty = TRUE;
+    *io_info->store->compact.dirty = TRUE;
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
@@ -371,11 +426,11 @@ done:
         if(H5I_dec_ref(tid_mem) < 0)
             HDONE_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "Can't decrement temporary datatype ID")
     if(buf)
-        H5FL_BLK_FREE(type_conv, buf);
+        (void)H5FL_BLK_FREE(type_conv, buf);
     if(reclaim_buf)
-        H5FL_BLK_FREE(type_conv, reclaim_buf);
+        (void)H5FL_BLK_FREE(type_conv, reclaim_buf);
     if(bkg)
-        H5FL_BLK_FREE(type_conv, bkg);
+        (void)H5FL_BLK_FREE(type_conv, bkg);
 
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5D_compact_copy() */