[svn-r21508] Revoked svn check-ins 20913 and 20921 (fix for HDFFV-7579) pending a careful evaluation of enum conversion behavior.

1 files changed, 2 insertions, 90 deletions

diff --git a/src/H5Tconv.c b/src/H5Tconv.c
index 05ce6e1..405883e 100644
--- a/src/H5Tconv.c
+++ b/src/H5Tconv.c
@@ -2699,19 +2699,6 @@ done:
  *
  * Programmer:	Robb Matzke
  *              Monday, January  4, 1999
- *
- * Modifications:
- *		Robb Matzke, 1999-06-16
- *		Added support for non-zero strides. If BUF_STRIDE is non-zero
- *		then convert one value at each memory location advancing
- *		BUF_STRIDE bytes each time; otherwise assume both source and
- *		destination values are packed.
- *              
- *              Raymond Lu, 2011-05-26
- *              When overflow happened, the old way was to fill in the destination
- *              with 0xff.  The new default way is to convert the source value
- *              to the destination.  If the user sets the property through 
- *              H5Pset_enum_conv_overflow, the library still uses the old way.
  *-------------------------------------------------------------------------
  */
 herr_t
@@ -2722,10 +2709,6 @@ H5T_conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
     uint8_t	*buf = (uint8_t*)_buf;	/*cast for pointer arithmetic	*/
     H5T_t	*src = NULL, *dst = NULL;	/*src and dst datatypes	*/
     H5T_t	*src_super = NULL, *dst_super = NULL;	/*parent types for src and dst*/
-    hid_t	src_super_id = NULL, dst_super_id = NULL;	/*parent type IDs for src and dst*/
-    size_t      src_super_size, dst_super_size; /*size of parent types for src and dst*/
-    H5T_path_t	*tpath;			/*type conversion info	*/
-    void        *tmp_buf = NULL;     /*small conversion buffer */
     uint8_t	*s = NULL, *d = NULL;	/*src and dst BUF pointers	*/
     int	src_delta, dst_delta;	/*conversion strides		*/
     int	n;			/*src value cast as native int	*/
@@ -2733,7 +2716,6 @@ H5T_conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
     H5P_genplist_t      *plist;         /*property list pointer         */
     H5T_conv_cb_t       cb_struct;      /*conversion callback structure */
     H5T_conv_ret_t      except_ret;     /*return of callback function   */
-    hbool_t             conv_overflow = TRUE; /* library's default behavior when overflow happens */
     size_t	i;			/*counters			*/
     herr_t      ret_value = SUCCEED;    /* Return value                 */
 
@@ -2814,43 +2796,6 @@ H5T_conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
             if(H5P_get(plist, H5D_XFER_CONV_CB_NAME, &cb_struct) < 0)
                 HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "unable to get conversion exception callback")
 
-            /* Get the property of overflow handling */
-            if(H5P_get(plist, H5D_XFER_CONV_ENUM_OVERFLOW_NAME, &conv_overflow) < 0)
-                HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "unable to get conversion exception callback")
-
-            /* Preparation for converting the data when overflow happens */
-	    if(conv_overflow) {
-		/* Retrieve base type for the source type */
-		if(NULL == (src_super = H5T_get_super(src)))
-		    HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "unable to get base type for the source type")
-
-		/* Retrieve base type for the destination type */
-		if(NULL == (dst_super = H5T_get_super(dst)))
-		    HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "unable to get base type for the destination type")
-
-		/* Find the conversion function */
-		if(NULL == (tpath = H5T_path_find(src_super, dst_super, NULL, NULL, dxpl_id, FALSE)))
-		    HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to find convert path between src and dst types")
-
-                /* The conversion function needs the type IDs */
-		if((src_super_id = H5I_register(H5I_DATATYPE, src_super, FALSE)) < 0) 
-		    HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register data type")
-
-		if((dst_super_id = H5I_register(H5I_DATATYPE, dst_super, FALSE)) < 0) 
-		    HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register data type")
-
-		/* Get the size of the base types of src & dst */
-		if(!(src_super_size = H5T_get_size(src_super)))
-		    HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "unable to get type size")
-
-		if(!(dst_super_size = H5T_get_size(dst_super)))
-		    HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "unable to get type size")
-
-                /* Conversion buffer for overflowing data */
-		if(!(tmp_buf = HDmalloc(MAX(src_super_size, dst_super_size))))
-		    HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to allocate buffer")
-	    }
-
             for(i = 0; i < nelmts; i++, s += src_delta, d += dst_delta) {
                 if(priv->length) {
                     /* Use O(1) lookup */
@@ -2876,17 +2821,7 @@ H5T_conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
                         }
 
                         if(except_ret == H5T_CONV_UNHANDLED) {
-			    if(conv_overflow) {
-                                /* Copy the source data to a small buffer, convert it, then copy it back to the 
-                                 * destination */
-				HDmemcpy(tmp_buf, s, src_super_size);
-				if(H5T_convert(tpath, src_super_id, dst_super_id, 1, (size_t)0, (size_t)0, 
-                                    tmp_buf, NULL, dxpl_id) < 0)
-				    HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "data type conversion failed")
-				HDmemcpy(d, tmp_buf, dst_super_size);
-			    } else
-                                /* Fill the destination with 0xff if we don't convert it */
-				HDmemset(d, 0xff, dst->shared->size);
+                            HDmemset(d, 0xff, dst->shared->size);
                         } else if(except_ret == H5T_CONV_ABORT)
                             HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
                     } else {
@@ -2919,18 +2854,7 @@ H5T_conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
                         }
 
                         if(except_ret == H5T_CONV_UNHANDLED) {
-			    if(conv_overflow) {
-                                /* Copy the source data to a small buffer, convert it, then copy it back to the 
-                                 * destination */
-			        HDmemcpy(tmp_buf, s, src_super_size);
-			        if(H5T_convert(tpath, src_super_id, dst_super_id, 1, (size_t)0, (size_t)0, 
-                                    tmp_buf, NULL, dxpl_id) < 0)
-				    HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "data type conversion failed")
-			        HDmemcpy(d, tmp_buf, dst_super_size);
-                            } else
-                                /* Fill the destination with 0xff if we don't convert it */
-                                HDmemset(d, 0xff, dst->shared->size);
-
+                            HDmemset(d, 0xff, dst->shared->size);
                         } else if(except_ret == H5T_CONV_ABORT)
                             HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
                     } /* end if */
@@ -2942,18 +2866,6 @@ H5T_conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
                 }
             }
 
-            /* Close the type IDs.  Have to use public function here */
-	    if(conv_overflow) {
-                /* Disable the error stack for these two public functions. Otherwise they would
-                 * clear it */
-                H5E_BEGIN_TRY {
-                    H5Tclose(src_super_id);
-                    H5Tclose(dst_super_id);
-                } H5E_END_TRY;
-
-		HDfree(tmp_buf);
-            }
-
             break;
 
         default: