[svn-r4674] Purpose:

    Backward Compatibility Fix
Description:
    One of H5P[gs]et_meta_block_size's parameters changed between v1.4 and the
    development branch.
Solution:
    Added v1.4 compat stuff around H5P[gs]et_meta_block_size implementation and
    testing to allow v1.4.x users to continue to use their source code without
    modification.

    There are no C++ or FORTRAN wrappers for these functions.

    There are also no tests for these API functions currently... :-(

Platforms tested:
    FreeBSD 4.4 (hawkwind)

1 files changed, 108 insertions, 0 deletions

diff --git a/src/H5P.c b/src/H5P.c
index f26b0a2..723f09e 100644
--- a/src/H5P.c
+++ b/src/H5P.c
@@ -3501,6 +3501,113 @@ done:
     FUNC_LEAVE(ret_value);
 }
 
+#ifdef H5_WANT_H5_V1_4_COMPAT
+
+/*-------------------------------------------------------------------------
+ * Function:	H5Pset_meta_block_size
+ *
+ * Purpose:	Sets the minimum size of metadata block allocations when
+ *      the H5FD_FEAT_AGGREGATE_METADATA is set by a VFL driver.
+ *      Each "raw" metadata block is allocated to be this size and then
+ *      specific pieces of metadata (object headers, local heaps, B-trees, etc)
+ *      are sub-allocated from this block.
+ *      
+ *		The default value is set to 2048 (bytes), indicating that metadata
+ *      will be attempted to be bunched together in (at least) 2K blocks in
+ *      the file.  Setting the value to 0 with this API function will
+ *      turn off the metadata aggregation, even if the VFL driver attempts to
+ *      use that strategy.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Quincey Koziol
+ *              Friday, August 25, 2000
+ *
+ * Modifications:
+ *
+ *		Raymond Lu
+ *		Tuesday, Oct 23, 2001
+ *		Changed the file access list to the new generic property 
+ *		list. 
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Pset_meta_block_size(hid_t plist_id, hsize_t _size)
+{
+    H5P_genplist_t *plist;      /* Property list pointer */
+    size_t size=(size_t)_size;  /* Work around parameter size difference */
+    herr_t ret_value=SUCCEED;   /* return value */
+
+    FUNC_ENTER (H5Pset_meta_block_size, FAIL);
+    H5TRACE2("e","iz",plist_id,size);
+
+    /* Check args */
+    if(TRUE != H5P_isa_class(plist_id, H5P_FILE_ACCESS))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list");  
+
+    /* Get the plist structure */
+    if(NULL == (plist = H5I_object(plist_id)))
+        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
+
+    /* Set values */
+    if(H5P_set(plist, H5F_ACS_META_BLOCK_SIZE_NAME, &size) < 0)
+        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set meta data block size");
+
+done:
+    FUNC_LEAVE(ret_value);
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5Pget_meta_block_size
+ *
+ * Purpose:	Returns the current settings for the metadata block allocation
+ *      property from a file access property list.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Quincey Koziol
+ *              Friday, August 29, 2000
+ *
+ * Modifications:
+ *
+ *		Raymond Lu 
+ * 		Tuesday, Oct 23, 2001
+ *		Changed the file access list to the new generic property 
+ *		list.
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Pget_meta_block_size(hid_t plist_id, hsize_t *_size/*out*/)
+{
+    H5P_genplist_t *plist;      /* Property list pointer */
+    size_t size;  /* Work around parameter size difference */
+    herr_t ret_value=SUCCEED;   /* return value */
+
+    FUNC_ENTER (H5Pget_meta_block_size, FAIL);
+    H5TRACE2("e","ix",plist_id,size);
+
+    /* Check args */
+    if(TRUE != H5P_isa_class(plist_id, H5P_FILE_ACCESS))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list");  
+
+    /* Get the plist structure */
+    if(NULL == (plist = H5I_object(plist_id)))
+        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
+
+    /* Get values */
+    if (_size) {
+        if(H5P_get(plist, H5F_ACS_META_BLOCK_SIZE_NAME, &size) < 0)
+            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get meta data block size");
+        *_size=size;
+    } /* end if */
+
+done:
+    FUNC_LEAVE(ret_value);
+}
+#else /* H5_WANT_H5_V1_4_COMPAT */
 
 /*-------------------------------------------------------------------------
  * Function:	H5Pset_meta_block_size
@@ -3602,6 +3709,7 @@ H5Pget_meta_block_size(hid_t plist_id, size_t *size/*out*/)
 done:
     FUNC_LEAVE(ret_value);
 }
+#endif /* H5_WANT_H5_V1_4_COMPAT */
 
 
 /*-------------------------------------------------------------------------