Merge pull request #826 in HDFFV/hdf5 from ~BYRN/hdf5_adb:develop to develop

* commit 'e94ed99c5bf7c4ae5df56f75606ef1b486e16bb2':
  Add HD prefix
  HDFFV-9724 Remove VDS file cache functionality
  Removed incorrect MPI text
  Par example needs to link with mpi libs
  Because of MPI requirements in library ALWAYS add include path
  Cleanup comments and if() in TRY blocks
  Skip test if 1.6 API
  HDFFV-9724 Add ENV VAR to vds test
  HDFFV-9724 Copy efc_open search from Lextern_traverse
  Add prefix dir to the clear command
  HDFFV-9724 Add H5LS prefix test with ${ORIGIN}
  Add h5dump VDS prefix tests
  HDFFV-9724 combine efc and vds into one function
  Correct var name
  Fix VDS file cache var names
  Remove return from void functions
  Added java wrappers and tests
  HDFFV-9724 Initial changes and test
  Changed reference from dl to CMake variable
  H5detect and H5make_libsettings need include folder

11 files changed, 1359 insertions, 726 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b163b8a..0552244 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -885,10 +885,7 @@ add_library (${HDF5_LIB_TARGET} STATIC ${common_SRCS} ${gen_SRCS} ${H5_PUBLIC_HE
 TARGET_C_PROPERTIES (${HDF5_LIB_TARGET} STATIC " " " ")
 target_link_libraries (${HDF5_LIB_TARGET} PRIVATE ${LINK_LIBS} ${LINK_COMP_LIBS})
 if (NOT WIN32)
-  target_link_libraries (${HDF5_LIB_TARGET} PUBLIC dl)
-endif ()
-if (H5_HAVE_PARALLEL AND MPI_C_FOUND)
-  target_include_directories (${HDF5_LIB_TARGET} PUBLIC ${MPI_C_INCLUDE_DIRS})
+  target_link_libraries (${HDF5_LIB_TARGET} PUBLIC ${CMAKE_DL_LIBS})
 endif ()
 set_global_variable (HDF5_LIBRARIES_TO_EXPORT ${HDF5_LIB_TARGET})
 H5_SET_LIB_OPTIONS (${HDF5_LIB_TARGET} ${HDF5_LIB_NAME} STATIC)
@@ -929,10 +926,7 @@ if (BUILD_SHARED_LIBS)
   TARGET_C_PROPERTIES (${HDF5_LIBSH_TARGET} SHARED " " " ")
   target_link_libraries (${HDF5_LIBSH_TARGET} PRIVATE ${LINK_LIBS} ${LINK_COMP_LIBS})
   if (NOT WIN32)
-    target_link_libraries (${HDF5_LIBSH_TARGET} PUBLIC dl)
-  endif ()
-  if (H5_HAVE_PARALLEL AND MPI_C_FOUND)
-    target_include_directories (${HDF5_LIBSH_TARGET} PUBLIC ${MPI_C_INCLUDE_DIRS})
+    target_link_libraries (${HDF5_LIBSH_TARGET} PUBLIC ${CMAKE_DL_LIBS})
   endif ()
   set_global_variable (HDF5_LIBRARIES_TO_EXPORT "${HDF5_LIBRARIES_TO_EXPORT};${HDF5_LIBSH_TARGET}")
   H5_SET_LIB_OPTIONS (${HDF5_LIBSH_TARGET} ${HDF5_LIB_NAME} SHARED ${HDF5_PACKAGE_SOVERSION})
diff --git a/src/H5Dint.c b/src/H5Dint.c
index b6c0341..8b663b8 100644
--- a/src/H5Dint.c
+++ b/src/H5Dint.c
@@ -61,8 +61,8 @@ static herr_t H5D__cache_dataspace_info(const H5D_t *dset);
 static herr_t H5D__init_space(H5F_t *file, const H5D_t *dset, const H5S_t *space);
 static herr_t H5D__update_oh_info(H5F_t *file, hid_t dxpl_id, H5D_t *dset,
         hid_t dapl_id);
-static herr_t H5D_build_extfile_prefix(const H5D_t *dset, hid_t dapl_id,
-        char **extfile_prefix);
+static herr_t H5D_build_file_prefix(const H5D_t *dset, hid_t dapl_id, const char * prefix_type,
+        char **vds_prefix);
 static herr_t H5D__open_oid(H5D_t *dataset, hid_t dapl_id, hid_t dxpl_id);
 static herr_t H5D__init_storage(const H5D_io_info_t *io_info, hbool_t full_overwrite,
         hsize_t old_dim[]);
@@ -963,24 +963,25 @@ done:
 } /* end H5D__update_oh_info() */
 
 
+
 /*--------------------------------------------------------------------------
- * Function:    H5D_build_extfile_prefix
+ * Function:    H5D_build_file_prefix
  *
- * Purpose:     Determine the external file prefix to be used and store
- *              it in extfile_prefix. Stores an empty string if no prefix
+ * Purpose:     Determine the file prefix to be used and store
+ *              it in file_prefix. Stores an empty string if no prefix
  *              should be used.
  *
  * Return:      SUCCEED/FAIL
  *--------------------------------------------------------------------------
  */
 static herr_t
-H5D_build_extfile_prefix(const H5D_t *dset, hid_t dapl_id, char **extfile_prefix /*out*/)
+H5D_build_file_prefix(const H5D_t *dset, hid_t dapl_id, const char *prefix_type, char **file_prefix /*out*/)
 {
     char            *prefix = NULL;       /* prefix used to look for the file               */
-    char            *extpath = NULL;      /* absolute path of directory the HDF5 file is in */
-    size_t          extpath_len;          /* length of extpath                              */
+    char            *filepath = NULL;     /* absolute path of directory the HDF5 file is in */
+    size_t          filepath_len;         /* length of file path                            */
     size_t          prefix_len;           /* length of prefix                               */
-    size_t          extfile_prefix_len;   /* length of expanded prefix                      */
+    size_t          file_prefix_len;      /* length of expanded prefix                      */
     H5P_genplist_t  *plist = NULL;        /* Property list pointer                          */
     herr_t          ret_value = SUCCEED;  /* Return value                                   */
 
@@ -990,20 +991,25 @@ H5D_build_extfile_prefix(const H5D_t *dset, hid_t dapl_id, char **extfile_prefix
     HDassert(dset);
     HDassert(dset->oloc.file);
 
-    extpath = H5F_EXTPATH(dset->oloc.file);
-    HDassert(extpath);
+    filepath = H5F_EXTPATH(dset->oloc.file);
+    HDassert(filepath);
 
     /* XXX: Future thread-safety note - getenv is not required
      *      to be reentrant.
      */
-    prefix = HDgetenv("HDF5_EXTFILE_PREFIX");
+    if (HDstrcmp(prefix_type, H5D_ACS_VDS_PREFIX_NAME) == 0)
+        prefix = HDgetenv("HDF5_VDS_PREFIX");
+    else if (HDstrcmp(prefix_type, H5D_ACS_EFILE_PREFIX_NAME) == 0)
+        prefix = HDgetenv("HDF5_EXTFILE_PREFIX");
+    else
+        HGOTO_ERROR(H5E_PLIST, H5E_BADTYPE, FAIL, "prefix name is not sensible")
 
     if(prefix == NULL || *prefix == '\0') {
-        /* Set prefix to value of H5D_ACS_EFILE_PREFIX_NAME property */
+        /* Set prefix to value of prefix_type property */
         if(NULL == (plist = H5P_object_verify(dapl_id, H5P_DATASET_ACCESS)))
             HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")
-        if(H5P_peek(plist, H5D_ACS_EFILE_PREFIX_NAME, &prefix) < 0)
-            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get external file prefix")
+        if(H5P_peek(plist, prefix_type, &prefix) < 0)
+            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get file prefix")
     } /* end if */
 
     /* Prefix has to be checked for NULL / empty string again because the
@@ -1013,29 +1019,29 @@ H5D_build_extfile_prefix(const H5D_t *dset, hid_t dapl_id, char **extfile_prefix
         /* filename is interpreted as relative to the current directory,
          * does not need to be expanded
          */
-        if(NULL == (*extfile_prefix = (char *)H5MM_strdup("")))
+        if(NULL == (*file_prefix = (char *)H5MM_strdup("")))
             HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
     } /* end if */
     else {
         if (HDstrncmp(prefix, "${ORIGIN}", HDstrlen("${ORIGIN}")) == 0) {
             /* Replace ${ORIGIN} at beginning of prefix by directory of HDF5 file */
-            extpath_len = HDstrlen(extpath);
+            filepath_len = HDstrlen(filepath);
             prefix_len = HDstrlen(prefix);
-            extfile_prefix_len = extpath_len + prefix_len - HDstrlen("${ORIGIN}") + 1;
+            file_prefix_len = filepath_len + prefix_len - HDstrlen("${ORIGIN}") + 1;
 
-            if(NULL == (*extfile_prefix = (char *)H5MM_malloc(extfile_prefix_len)))
+            if(NULL == (*file_prefix = (char *)H5MM_malloc(file_prefix_len)))
                 HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to allocate buffer")
-            HDsnprintf(*extfile_prefix, extfile_prefix_len, "%s%s", extpath, prefix + HDstrlen("${ORIGIN}"));
+            HDsnprintf(*file_prefix, file_prefix_len, "%s%s", filepath, prefix + HDstrlen("${ORIGIN}"));
         } /* end if */
         else {
-            if(NULL == (*extfile_prefix = (char *)H5MM_strdup(prefix)))
+            if(NULL == (*file_prefix = (char *)H5MM_strdup(prefix)))
                 HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
         } /* end else */
     } /* end else */
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5D_build_extfile_prefix() */
+} /* H5D_build_file_prefix() */
 
 
 /*-------------------------------------------------------------------------
@@ -1217,9 +1223,13 @@ H5D__create(H5F_t *file, hid_t type_id, const H5S_t *space, hid_t dcpl_id,
     HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to set up flush append property")
 
     /* Set the external file prefix */
-    if(H5D_build_extfile_prefix(new_dset, dapl_id, &new_dset->shared->extfile_prefix) < 0)
+    if(H5D_build_file_prefix(new_dset, dapl_id, H5D_ACS_EFILE_PREFIX_NAME, &new_dset->shared->extfile_prefix) < 0)
         HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize external file prefix")
 
+    /* Set the vds file prefix */
+    if(H5D_build_file_prefix(new_dset, dapl_id, H5D_ACS_VDS_PREFIX_NAME, &new_dset->shared->vds_prefix) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize vds  prefix")
+
     /* Add the dataset to the list of opened objects in the file */
     if(H5FO_top_incr(new_dset->oloc.file, new_dset->oloc.addr) < 0)
         HGOTO_ERROR(H5E_DATASET, H5E_CANTINC, NULL, "can't incr object ref. count")
@@ -1265,6 +1275,7 @@ done:
             if(new_dset->shared->dcpl_id != 0 && H5I_dec_ref(new_dset->shared->dcpl_id) < 0)
                 HDONE_ERROR(H5E_DATASET, H5E_CANTDEC, NULL, "unable to decrement ref count on property list")
             new_dset->shared->extfile_prefix = (char *)H5MM_xfree(new_dset->shared->extfile_prefix);
+            new_dset->shared->vds_prefix = (char *)H5MM_xfree(new_dset->shared->vds_prefix);
             new_dset->shared = H5FL_FREE(H5D_shared_t, new_dset->shared);
         } /* end if */
         new_dset->oloc.file = NULL;
@@ -1351,6 +1362,7 @@ H5D_open(const H5G_loc_t *loc, hid_t dapl_id, hid_t dxpl_id)
     H5D_shared_t    *shared_fo = NULL;
     H5D_t           *dataset = NULL;
     char            *extfile_prefix = NULL;  /* Expanded external file prefix */
+    char            *vds_prefix = NULL;      /* Expanded vds prefix */
     H5D_t           *ret_value = NULL;       /* Return value */
 
     FUNC_ENTER_NOAPI(NULL)
@@ -1371,9 +1383,13 @@ H5D_open(const H5G_loc_t *loc, hid_t dapl_id, hid_t dxpl_id)
         HGOTO_ERROR(H5E_DATASET, H5E_CANTCOPY, NULL, "can't copy path")
 
     /* Get the external file prefix */
-    if(H5D_build_extfile_prefix(dataset, dapl_id, &extfile_prefix) < 0)
+    if(H5D_build_file_prefix(dataset, dapl_id, H5D_ACS_EFILE_PREFIX_NAME, &extfile_prefix) < 0)
         HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize external file prefix")
 
+    /* Get the vds prefix */
+    if(H5D_build_file_prefix(dataset, dapl_id, H5D_ACS_VDS_PREFIX_NAME, &vds_prefix) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize vds prefix")
+
     /* Check if dataset was already open */
     if(NULL == (shared_fo = (H5D_shared_t *)H5FO_opened(dataset->oloc.file, dataset->oloc.addr))) {
         /* Clear any errors from H5FO_opened() */
@@ -1399,6 +1415,11 @@ H5D_open(const H5G_loc_t *loc, hid_t dapl_id, hid_t dxpl_id)
         /* Prevent string from being freed during done: */
         extfile_prefix = NULL;
 
+        /* Set the vds file prefix */
+        dataset->shared->vds_prefix = vds_prefix;
+        /* Prevent string from being freed during done: */
+        vds_prefix = NULL;
+
     } /* end if */
     else {
         /* Point to shared info */
@@ -1430,12 +1451,14 @@ H5D_open(const H5G_loc_t *loc, hid_t dapl_id, hid_t dxpl_id)
 
 done:
     extfile_prefix = (char *)H5MM_xfree(extfile_prefix);
+    vds_prefix = (char *)H5MM_xfree(vds_prefix);
 
     if(ret_value == NULL) {
         /* Free the location--casting away const*/
         if(dataset) {
             if(shared_fo == NULL && dataset->shared) {   /* Need to free shared fo */
                 dataset->shared->extfile_prefix = (char *)H5MM_xfree(dataset->shared->extfile_prefix);
+                dataset->shared->vds_prefix = (char *)H5MM_xfree(dataset->shared->vds_prefix);
                 dataset->shared = H5FL_FREE(H5D_shared_t, dataset->shared);
             }
 
@@ -1818,6 +1841,9 @@ H5D_close(H5D_t *dataset)
         /* Free the external file prefix */
         dataset->shared->extfile_prefix = (char *)H5MM_xfree(dataset->shared->extfile_prefix);
 
+        /* Free the vds file prefix */
+        dataset->shared->vds_prefix = (char *)H5MM_xfree(dataset->shared->vds_prefix);
+
         /* Release layout, fill-value, efl & pipeline messages */
         if(dataset->shared->dcpl_id != H5P_DATASET_CREATE_DEFAULT)
             free_failed |= (H5O_msg_reset(H5O_PLINE_ID, &dataset->shared->dcpl_cache.pline) < 0) ||
@@ -3360,6 +3386,10 @@ H5D_get_access_plist(H5D_t *dset)
     if(H5P_set(new_plist, H5D_ACS_VDS_PRINTF_GAP_NAME, &(dset->shared->layout.storage.u.virt.printf_gap)) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set VDS printf gap")
 
+    /* Set the vds prefix option */
+    if(H5P_set(new_plist, H5D_ACS_VDS_PREFIX_NAME, &(dset->shared->vds_prefix)) < 0)
+        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set vds prefix")
+
     /* Set the external file prefix option */
     if(H5P_set(new_plist, H5D_ACS_EFILE_PREFIX_NAME, &(dset->shared->extfile_prefix)) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set external file prefix")
diff --git a/src/H5Dpkg.h b/src/H5Dpkg.h
index 542abd0..45f2d3a 100644
--- a/src/H5Dpkg.h
+++ b/src/H5Dpkg.h
@@ -476,6 +476,7 @@ typedef struct H5D_shared_t {
 
     H5D_append_flush_t   append_flush;   /* Append flush property information */
     char                *extfile_prefix; /* expanded external file prefix */
+    char                *vds_prefix;     /* expanded vds prefix */
 } H5D_shared_t;
 
 struct H5D_t {
@@ -598,7 +599,7 @@ H5_DLL herr_t H5D_set_io_info_dxpls(H5D_io_info_t *io_info, hid_t dxpl_id);
 H5_DLL herr_t H5D__format_convert(H5D_t *dataset, hid_t dxpl_id);
 
 /* Internal I/O routines */
-H5_DLL herr_t H5D__pre_write(H5D_t *dset, hbool_t direct_write, hid_t mem_type_id, 
+H5_DLL herr_t H5D__pre_write(H5D_t *dset, hbool_t direct_write, hid_t mem_type_id,
     const H5S_t *mem_space, const H5S_t *file_space, hid_t dxpl_id, const void *buf);
 H5_DLL herr_t H5D__read(H5D_t *dataset, hid_t mem_type_id,
     const H5S_t *mem_space, const H5S_t *file_space, hid_t dset_xfer_plist,
diff --git a/src/H5Dprivate.h b/src/H5Dprivate.h
index fb994d8..ed13467 100644
--- a/src/H5Dprivate.h
+++ b/src/H5Dprivate.h
@@ -47,12 +47,13 @@
 #define H5D_CRT_EXT_FILE_LIST_NAME "efl"                 /* External file list */
 
 /* ========  Dataset access property names ======== */
-#define H5D_ACS_DATA_CACHE_NUM_SLOTS_NAME   "rdcc_nslots"   /* Size of raw data chunk cache(slots) */
-#define H5D_ACS_DATA_CACHE_BYTE_SIZE_NAME   "rdcc_nbytes"   /* Size of raw data chunk cache(bytes) */
-#define H5D_ACS_PREEMPT_READ_CHUNKS_NAME    "rdcc_w0"       /* Preemption read chunks first */
-#define H5D_ACS_VDS_VIEW_NAME               "vds_view"      /* VDS view option */
+#define H5D_ACS_DATA_CACHE_NUM_SLOTS_NAME   "rdcc_nslots"    /* Size of raw data chunk cache(slots) */
+#define H5D_ACS_DATA_CACHE_BYTE_SIZE_NAME   "rdcc_nbytes"    /* Size of raw data chunk cache(bytes) */
+#define H5D_ACS_PREEMPT_READ_CHUNKS_NAME    "rdcc_w0"        /* Preemption read chunks first */
+#define H5D_ACS_VDS_VIEW_NAME               "vds_view"       /* VDS view option */
 #define H5D_ACS_VDS_PRINTF_GAP_NAME         "vds_printf_gap" /* VDS printf gap size */
-#define H5D_ACS_APPEND_FLUSH_NAME    "append_flush"         /* Append flush actions */
+#define H5D_ACS_VDS_PREFIX_NAME             "vds_prefix"     /* VDS file prefix */
+#define H5D_ACS_APPEND_FLUSH_NAME           "append_flush"   /* Append flush actions */
 #define H5D_ACS_EFILE_PREFIX_NAME           "external file prefix" /* External file prefix */
 
 /* ======== Data transfer properties ======== */
diff --git a/src/H5Dvirtual.c b/src/H5Dvirtual.c
index 3be2353..4882e9f 100644
--- a/src/H5Dvirtual.c
+++ b/src/H5Dvirtual.c
@@ -731,6 +731,240 @@ done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5D__virtual_delete */
 
+
+/*--------------------------------------------------------------------------
+ * Function: H5D__virtual_build_name
+ *
+ * Purpose:  Prepend PREFIX to FILE_NAME and store in FULL_NAME
+ *
+ * Return:   Non-negative on success/Negative on failure
+ *--------------------------------------------------------------------------*/
+static herr_t
+H5D__virtual_build_name(char *prefix, char *file_name, char **full_name/*out*/)
+{
+    size_t      prefix_len;             /* length of prefix */
+    size_t      fname_len;              /* Length of external link file name */
+    herr_t      ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_NOAPI_NOINIT
+
+    prefix_len = HDstrlen(prefix);
+    fname_len = HDstrlen(file_name);
+
+    /* Allocate a buffer to hold the filename + prefix + possibly the delimiter + terminating null byte */
+    if(NULL == (*full_name = (char *)H5MM_malloc(prefix_len + fname_len + 2)))
+        HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to allocate filename buffer")
+
+    /* Compose the full file name */
+    HDsnprintf(*full_name, (prefix_len + fname_len + 2), "%s%s%s", prefix,
+        (H5_CHECK_DELIMITER(prefix[prefix_len - 1]) ? "" : H5_DIR_SEPS), file_name);
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5D__virtual_build_name() */
+
+
+/*--------------------------------------------------------------------------
+ * Function: H5D_getenv_prefix_name --
+ *
+ * Purpose:  Get the first pathname in the list of pathnames stored in env_prefix,
+ *           which is separated by the environment delimiter.
+ *           env_prefix is modified to point to the remaining pathnames
+ *           in the list.
+ *
+ * Return:   A pointer to a pathname
+--------------------------------------------------------------------------*/
+static char *
+H5D_getenv_prefix_name(char **env_prefix/*in,out*/)
+{
+    char        *retptr=NULL;
+    char        *strret=NULL;
+
+    FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+    strret = HDstrchr(*env_prefix, H5_COLON_SEPC);
+    if (strret == NULL) {
+        retptr = *env_prefix;
+        *env_prefix = strret;
+    } else {
+        retptr = *env_prefix;
+        *env_prefix = strret + 1;
+        *strret = '\0';
+    }
+
+    FUNC_LEAVE_NOAPI(retptr)
+} /* end H5D_getenv_prefix_name() */
+
+/*-------------------------------------------------------------------------
+ * Function:    H5D__virtual_open_file
+ *
+ * Purpose:     Attempts to open a source dataset file.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *-------------------------------------------------------------------------
+ */
+static H5F_t *
+H5D__virtual_open_file(H5P_genplist_t *plist, const H5F_t *vdset_file,
+        const char *file_name,
+        hid_t fapl_id, hid_t dxpl_id)
+{
+    H5F_t       *src_file = NULL;       /* Source file */
+    H5F_t       *ret_value = NULL;      /* Actual return value  */
+    char        *full_name = NULL;      /* File name with prefix */
+    char        *my_prefix;             /* Library's copy of the prefix */
+    unsigned    intent;                 /* File access permissions */
+    char        *actual_file_name = NULL; /* Virtual file's actual name */
+    char        *temp_file_name = NULL; /* Temporary pointer to file name */
+    size_t      temp_file_name_len;     /* Length of temporary file name */
+
+    FUNC_ENTER_STATIC
+
+    /* Simplify intent flags for open calls */
+    intent = H5F_INTENT(vdset_file);
+    intent &= (H5F_ACC_RDWR | H5F_ACC_SWMR_WRITE | H5F_ACC_SWMR_READ);
+
+    /* Copy the file name to use */
+    if(NULL == (temp_file_name = H5MM_strdup(file_name)))
+        HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
+    temp_file_name_len = HDstrlen(temp_file_name);
+
+    /* target file_name is an absolute pathname: see RM for detailed description */
+    if(H5_CHECK_ABSOLUTE(file_name) || H5_CHECK_ABS_PATH(file_name)) {
+        /* Try opening file */
+        if(NULL == (src_file = H5F_open(file_name, intent, H5P_FILE_CREATE_DEFAULT, fapl_id, dxpl_id))) {
+            char *ptr;
+
+            H5E_clear_stack(NULL);
+
+            /* get last component of file_name */
+            H5_GET_LAST_DELIMITER(file_name, ptr)
+            HDassert(ptr);
+
+            /* Increment past delimiter */
+            ptr++;
+
+            /* Copy into the temp. file name */
+            HDstrncpy(temp_file_name, ptr, temp_file_name_len);
+            temp_file_name[temp_file_name_len - 1] = '\0';
+        } /* end if */
+    } /* end if */
+    else if(H5_CHECK_ABS_DRIVE(file_name)) {
+        /* Try opening file */
+        if(NULL == (src_file = H5F_open(file_name, intent, H5P_FILE_CREATE_DEFAULT, fapl_id, dxpl_id))) {
+
+            H5E_clear_stack(NULL);
+
+            /* strip "<drive-letter>:" */
+            HDstrncpy(temp_file_name, &file_name[2], temp_file_name_len);
+            temp_file_name[temp_file_name_len - 1] = '\0';
+        } /* end if */
+    } /* end if */
+
+    /* try searching from paths set in the environment variable */
+    if(src_file == NULL) {
+        char *env_prefix;
+
+        if(NULL != (env_prefix = HDgetenv("HDF5_VDS_PREFIX"))) {
+            char *tmp_env_prefix, *saved_env;
+
+            if(NULL == (saved_env = tmp_env_prefix = H5MM_strdup(env_prefix)))
+                HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
+
+            while((tmp_env_prefix) && (*tmp_env_prefix)) {
+                char *out_prefix_name;
+
+                out_prefix_name = H5D_getenv_prefix_name(&tmp_env_prefix/*in,out*/);
+                if(out_prefix_name && (*out_prefix_name)) {
+                    if(H5D__virtual_build_name(out_prefix_name, temp_file_name, &full_name/*out*/) < 0) {
+                        saved_env = (char *)H5MM_xfree(saved_env);
+                        HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, NULL, "can't prepend prefix to filename")
+                    } /* end if */
+
+                    src_file = H5F_open(full_name, intent, H5P_FILE_CREATE_DEFAULT, fapl_id, dxpl_id);
+                    full_name = (char *)H5MM_xfree(full_name);
+                    if(src_file != NULL)
+                        break;
+                    H5E_clear_stack(NULL);
+                } /* end if */
+            } /* end while */
+            saved_env = (char *)H5MM_xfree(saved_env);
+        } /* end if */
+    } /* end if */
+
+    /* try searching from property list */
+    if(src_file == NULL) {
+        size_t  size = 0;
+        if((size = H5Pget_virtual_prefix(plist, NULL, 0)) < 0)
+            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get vds prefix")
+        /* Allocate a buffer to hold the filename + prefix + possibly the delimiter + terminating null byte */
+        if(NULL == (my_prefix = (char *)H5MM_malloc(size + 1)))
+            HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to allocate prefix buffer")
+        if(H5Pget_virtual_prefix(plist, my_prefix, size+1) < 0)
+            HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get vds  prefix")
+        if(my_prefix) {
+            if(H5D__virtual_build_name(my_prefix, temp_file_name, &full_name/*out*/) < 0)
+                HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, NULL, "can't prepend prefix to filename")
+            if(NULL == (src_file = H5F_open(full_name, intent, H5P_FILE_CREATE_DEFAULT, fapl_id, dxpl_id)))
+                H5E_clear_stack(NULL);
+            full_name = (char *)H5MM_xfree(full_name);
+        } /* end if */
+    } /* end if */
+
+    /* try searching from main file's "extpath": see description in H5F_open() & H5_build_extpath() */
+    if(src_file == NULL) {
+        char *vdspath;
+
+        if(NULL != (vdspath = H5F_EXTPATH(vdset_file))) {
+            if(H5D__virtual_build_name(vdspath, temp_file_name, &full_name/*out*/) < 0)
+                HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, NULL, "can't prepend prefix to filename")
+            if(NULL == (src_file = H5F_open(full_name, intent, H5P_FILE_CREATE_DEFAULT, fapl_id, dxpl_id)))
+                H5E_clear_stack(NULL);
+            full_name = (char *)H5MM_xfree(full_name);
+        } /* end if */
+    } /* end if */
+
+    /* try the relative file_name stored in temp_file_name */
+    if(src_file == NULL) {
+        if(NULL == (src_file = H5F_open(temp_file_name, intent, H5P_FILE_CREATE_DEFAULT, fapl_id, dxpl_id)))
+            H5E_clear_stack(NULL);
+    } /* end if */
+
+    /* try the 'resolved' name for the virtual file */
+    if(src_file == NULL) {
+        char *ptr = NULL;
+
+        /* Copy resolved file name */
+        if(NULL == (actual_file_name = H5MM_strdup(H5F_ACTUAL_NAME(vdset_file))))
+            HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, NULL, "can't duplicate resolved file name string")
+
+        /* get last component of file_name */
+        H5_GET_LAST_DELIMITER(actual_file_name, ptr)
+        if(!ptr)
+            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENFILE, NULL, "unable to open vds file, vds file name = '%s', temp_file_name = '%s'", file_name, temp_file_name)
+
+        /* Truncate filename portion from actual file name path */
+        *ptr = '\0';
+
+        /* Build new file name for the external file */
+        if(H5D__virtual_build_name(actual_file_name, temp_file_name, &full_name/*out*/) < 0)
+            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, NULL, "can't prepend prefix to filename")
+
+        /* Try opening with the resolved name */
+        if(NULL == (src_file = H5F_open(full_name, intent, H5P_FILE_CREATE_DEFAULT, fapl_id, dxpl_id)))
+            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENFILE, NULL, "unable to open vds file, vds file name = '%s', temp_file_name = '%s'", file_name, temp_file_name)
+        full_name = (char *)H5MM_xfree(full_name);
+    } /* end if */
+
+    /* Success */
+    ret_value = src_file;
+done:
+    if((NULL == ret_value) && src_file)
+        if(H5F_try_close(src_file, NULL) < 0)
+            HDONE_ERROR(H5E_DATASET, H5E_CANTCLOSEFILE, FAIL, "can't close source file")
+
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5D__virtual_open_file() */
+
 
 /*-------------------------------------------------------------------------
  * Function:    H5D__virtual_open_source_dset
@@ -750,9 +984,13 @@ H5D__virtual_open_source_dset(const H5D_t *vdset,
     H5O_storage_virtual_srcdset_t *source_dset, hid_t dxpl_id)
 {
     H5F_t       *src_file = NULL;       /* Source file */
+    char        *vds_prefix = NULL;     /* Source file vds_prefix */
     hbool_t     src_file_open = FALSE;  /* Whether we have opened and need to close src_file */
     H5G_loc_t   src_root_loc;           /* Object location of source file root group */
     herr_t      ret_value = SUCCEED;    /* Return value */
+    char        *full_name = NULL;      /* File name with prefix */
+    unsigned    intent;                 /* File access permissions */
+    H5P_genplist_t *plist;              /* Property list pointer */
 
     FUNC_ENTER_STATIC
 
@@ -765,8 +1003,9 @@ H5D__virtual_open_source_dset(const H5D_t *vdset,
 
     /* Check if we need to open the source file */
     if(HDstrcmp(source_dset->file_name, ".")) {
-        /* Open the source file */
-        if(NULL == (src_file = H5F_open(source_dset->file_name, H5F_INTENT(vdset->oloc.file) & (H5F_ACC_RDWR | H5F_ACC_SWMR_WRITE | H5F_ACC_SWMR_READ), H5P_FILE_CREATE_DEFAULT, vdset->shared->layout.storage.u.virt.source_fapl, dxpl_id)))
+        if((plist = H5D_get_access_plist(vdset)) < 0)
+            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "Can't get access plist")
+        if(NULL == (src_file = H5D__virtual_open_file(plist, vdset->oloc.file, source_dset->file_name, vdset->shared->layout.storage.u.virt.source_fapl, dxpl_id)))
             H5E_clear_stack(NULL); /* Quick hack until proper support for H5Fopen with missing file is implemented */
         else
             src_file_open = TRUE;
@@ -1407,7 +1646,7 @@ H5D__virtual_set_extent_unlim(const H5D_t *dset, hid_t dxpl_id)
                                 HGOTO_ERROR(H5E_DATASET, H5E_CANTCLIP, FAIL, "failed to clip unlimited selection")
                         } /* end if */
 
-                        /* Update cached values unlim_extent_source and 
+                        /* Update cached values unlim_extent_source and
                          * clip_size_virtual */
                         storage->list[i].unlim_extent_source = curr_dims[storage->list[i].unlim_dim_source];
                         storage->list[i].clip_size_virtual = clip_size;
@@ -1559,7 +1798,7 @@ H5D__virtual_set_extent_unlim(const H5D_t *dset, hid_t dxpl_id)
             HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to modify size of data space")
 
         /* Mark the space as dirty, for later writing to the file */
-        if(H5F_INTENT(dset->oloc.file) & H5F_ACC_RDWR) 
+        if(H5F_INTENT(dset->oloc.file) & H5F_ACC_RDWR)
             if(H5D__mark(dset, dxpl_id, H5D_MARK_SPACE) < 0)
                 HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "unable to mark dataspace as dirty")
     } /* end if */
@@ -2246,7 +2485,7 @@ H5D__virtual_pre_io(H5D_io_info_t *io_info,
                             HGOTO_ERROR(H5E_DATASET, H5E_CLOSEERROR, FAIL, "can't close projected memory space")
                         storage->list[i].sub_dset[j].projected_mem_space = NULL;
                     } /* end if */
-                    else 
+                    else
                         *tot_nelmts += (hsize_t)select_nelmts;
                 } /* end if */
             } /* end for */
@@ -2265,7 +2504,7 @@ H5D__virtual_pre_io(H5D_io_info_t *io_info,
                 /* Check if anything is selected */
                 if(select_nelmts > (hssize_t)0) {
                     /* Open source dataset */
-                    if(!storage->list[i].source_dset.dset) 
+                    if(!storage->list[i].source_dset.dset)
                         /* Try to open dataset */
                         if(H5D__virtual_open_source_dset(io_info->dset, &storage->list[i], &storage->list[i].source_dset, io_info->md_dxpl_id) < 0)
                             HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "unable to open source dataset")
@@ -2506,7 +2745,7 @@ H5D__virtual_read(H5D_io_info_t *io_info, const H5D_type_info_t *type_info,
                             HGOTO_ERROR(H5E_DATASET, H5E_CANTCLIP, FAIL, "unable to clip fill selection")
 
             /* Write fill values to memory buffer */
-            if(H5D__fill(io_info->dset->shared->dcpl_cache.fill.buf, io_info->dset->shared->type, io_info->u.rbuf, 
+            if(H5D__fill(io_info->dset->shared->dcpl_cache.fill.buf, io_info->dset->shared->type, io_info->u.rbuf,
                          type_info->mem_type, fill_space, io_info->md_dxpl_id) < 0)
                 HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "filling buf failed")
 
diff --git a/src/H5Fprivate.h b/src/H5Fprivate.h
index daf0a52..96b8e36 100644
--- a/src/H5Fprivate.h
+++ b/src/H5Fprivate.h
@@ -25,13 +25,13 @@ typedef struct H5F_t H5F_t;
 #include "H5Fpublic.h"
 
 /* Public headers needed by this file */
-#include "H5FDpublic.h"		/* File drivers				*/
+#include "H5FDpublic.h"        /* File drivers                */
 
 /* Private headers needed by this file */
 #ifdef H5_HAVE_PARALLEL
-#include "H5Pprivate.h"		/* Property lists			*/
+#include "H5Pprivate.h"        /* Property lists            */
 #endif /* H5_HAVE_PARALLEL */
-#include "H5VMprivate.h"		/* Vectors and arrays */
+#include "H5VMprivate.h"        /* Vectors and arrays */
 
 
 /**************************/
@@ -43,68 +43,68 @@ typedef struct H5F_t H5F_t;
  * Currently, all file meta-data is little-endian.
  */
 
-#  define INT16ENCODE(p, i) {						      \
-   *(p) = (uint8_t)( (unsigned)(i)	 & 0xff); (p)++;		      \
-   *(p) = (uint8_t)(((unsigned)(i) >> 8) & 0xff); (p)++;		      \
+#  define INT16ENCODE(p, i) {                              \
+   *(p) = (uint8_t)( (unsigned)(i)     & 0xff); (p)++;              \
+   *(p) = (uint8_t)(((unsigned)(i) >> 8) & 0xff); (p)++;              \
 }
 
-#  define UINT16ENCODE(p, i) {						      \
-   *(p) = (uint8_t)( (unsigned)(i)	 & 0xff); (p)++;		      \
-   *(p) = (uint8_t)(((unsigned)(i) >> 8) & 0xff); (p)++;		      \
+#  define UINT16ENCODE(p, i) {                              \
+   *(p) = (uint8_t)( (unsigned)(i)     & 0xff); (p)++;              \
+   *(p) = (uint8_t)(((unsigned)(i) >> 8) & 0xff); (p)++;              \
 }
 
-#  define INT32ENCODE(p, i) {						      \
-   *(p) = (uint8_t)( (uint32_t)(i)	  & 0xff); (p)++;		      \
-   *(p) = (uint8_t)(((uint32_t)(i) >>  8) & 0xff); (p)++;		      \
-   *(p) = (uint8_t)(((uint32_t)(i) >> 16) & 0xff); (p)++;		      \
-   *(p) = (uint8_t)(((uint32_t)(i) >> 24) & 0xff); (p)++;		      \
+#  define INT32ENCODE(p, i) {                              \
+   *(p) = (uint8_t)( (uint32_t)(i)      & 0xff); (p)++;              \
+   *(p) = (uint8_t)(((uint32_t)(i) >>  8) & 0xff); (p)++;              \
+   *(p) = (uint8_t)(((uint32_t)(i) >> 16) & 0xff); (p)++;              \
+   *(p) = (uint8_t)(((uint32_t)(i) >> 24) & 0xff); (p)++;              \
 }
 
-#  define UINT32ENCODE(p, i) {						      \
-   *(p) = (uint8_t)( (i)        & 0xff); (p)++;				      \
-   *(p) = (uint8_t)(((i) >>  8) & 0xff); (p)++;				      \
-   *(p) = (uint8_t)(((i) >> 16) & 0xff); (p)++;				      \
-   *(p) = (uint8_t)(((i) >> 24) & 0xff); (p)++;				      \
+#  define UINT32ENCODE(p, i) {                              \
+   *(p) = (uint8_t)( (i)        & 0xff); (p)++;                      \
+   *(p) = (uint8_t)(((i) >>  8) & 0xff); (p)++;                      \
+   *(p) = (uint8_t)(((i) >> 16) & 0xff); (p)++;                      \
+   *(p) = (uint8_t)(((i) >> 24) & 0xff); (p)++;                      \
 }
 
 /* Encode an unsigned integer into a variable-sized buffer */
 /* (Assumes that the high bits of the integer are zero) */
-#  define ENCODE_VAR(p, typ, n, l) {					      \
-   typ _n = (n);							      \
-   size_t _i;								      \
-   uint8_t *_p = (uint8_t*)(p);						      \
-									      \
-   for(_i = 0; _i < l; _i++, _n >>= 8)					      \
-      *_p++ = (uint8_t)(_n & 0xff);					      \
-   (p) = (uint8_t*)(p) + l;						      \
+#  define ENCODE_VAR(p, typ, n, l) {                          \
+   typ _n = (n);                                  \
+   size_t _i;                                      \
+   uint8_t *_p = (uint8_t*)(p);                              \
+                                        \
+   for(_i = 0; _i < l; _i++, _n >>= 8)                          \
+      *_p++ = (uint8_t)(_n & 0xff);                          \
+   (p) = (uint8_t*)(p) + l;                              \
 }
 
 /* Encode a 32-bit unsigned integer into a variable-sized buffer */
 /* (Assumes that the high bits of the integer are zero) */
 #  define UINT32ENCODE_VAR(p, n, l)     ENCODE_VAR(p, uint32_t, n, l)
 
-#  define INT64ENCODE(p, n) {						      \
-   int64_t _n = (n);							      \
-   size_t _i;								      \
-   uint8_t *_p = (uint8_t*)(p);						      \
-									      \
-   for (_i = 0; _i < sizeof(int64_t); _i++, _n >>= 8)			      \
-      *_p++ = (uint8_t)(_n & 0xff);					      \
-   for (/*void*/; _i < 8; _i++)						      \
-      *_p++ = (n) < 0 ? 0xff : 0;					      \
-   (p) = (uint8_t*)(p)+8;						      \
+#  define INT64ENCODE(p, n) {                              \
+   int64_t _n = (n);                                  \
+   size_t _i;                                      \
+   uint8_t *_p = (uint8_t*)(p);                              \
+                                        \
+   for (_i = 0; _i < sizeof(int64_t); _i++, _n >>= 8)                  \
+      *_p++ = (uint8_t)(_n & 0xff);                          \
+   for (/*void*/; _i < 8; _i++)                              \
+      *_p++ = (n) < 0 ? 0xff : 0;                          \
+   (p) = (uint8_t*)(p)+8;                              \
 }
 
-#  define UINT64ENCODE(p, n) {						      \
-   uint64_t _n = (n);							      \
-   size_t _i;								      \
-   uint8_t *_p = (uint8_t*)(p);						      \
-									      \
-   for (_i = 0; _i < sizeof(uint64_t); _i++, _n >>= 8)			      \
-      *_p++ = (uint8_t)(_n & 0xff);					      \
-   for (/*void*/; _i < 8; _i++)						      \
-      *_p++ = 0;							      \
-   (p) = (uint8_t*)(p) + 8;						      \
+#  define UINT64ENCODE(p, n) {                              \
+   uint64_t _n = (n);                                  \
+   size_t _i;                                      \
+   uint8_t *_p = (uint8_t*)(p);                              \
+                                        \
+   for (_i = 0; _i < sizeof(uint64_t); _i++, _n >>= 8)                  \
+      *_p++ = (uint8_t)(_n & 0xff);                          \
+   for (/*void*/; _i < 8; _i++)                              \
+      *_p++ = 0;                                  \
+   (p) = (uint8_t*)(p) + 8;                              \
 }
 
 /* Encode a 64-bit unsigned integer into a variable-sized buffer */
@@ -113,31 +113,31 @@ typedef struct H5F_t H5F_t;
 
 /* Encode a 64-bit unsigned integer and its length into a variable-sized buffer */
 /* (Assumes that the high bits of the integer are zero) */
-#  define UINT64ENCODE_VARLEN(p, n) {					      \
-   uint64_t __n = (uint64_t)(n);							      \
-   unsigned _s = H5VM_limit_enc_size(__n);				      \
-									      \
-   *(p)++ = (uint8_t)_s;						      \
-   UINT64ENCODE_VAR(p, __n, _s);						      \
+#  define UINT64ENCODE_VARLEN(p, n) {                          \
+   uint64_t __n = (uint64_t)(n);                                  \
+   unsigned _s = H5VM_limit_enc_size(__n);                      \
+                                        \
+   *(p)++ = (uint8_t)_s;                              \
+   UINT64ENCODE_VAR(p, __n, _s);                              \
 }
 
-#  define H5_ENCODE_UNSIGNED(p, n) {					      \
-    HDcompile_assert(sizeof(unsigned) == sizeof(uint32_t));		      \
-    UINT32ENCODE(p, n)							      \
+#  define H5_ENCODE_UNSIGNED(p, n) {                          \
+    HDcompile_assert(sizeof(unsigned) == sizeof(uint32_t));              \
+    UINT32ENCODE(p, n)                                  \
 }
 
 /* Assumes the endianness of uint64_t is the same as double */
-#  define H5_ENCODE_DOUBLE(p, n) {					      \
-    uint64_t _n;							      \
-    size_t _u;								      \
-    uint8_t *_p = (uint8_t*)(p);					      \
-									      \
-    HDcompile_assert(sizeof(double) == 8);				      \
-    HDcompile_assert(sizeof(double) == sizeof(uint64_t));		      \
-    HDmemcpy(&_n, &n, sizeof(double));					      \
-    for(_u = 0; _u < sizeof(uint64_t); _u++, _n >>= 8)			      \
-        *_p++ = (uint8_t)(_n & 0xff);					      \
-    (p) = (uint8_t *)(p) + 8;						      \
+#  define H5_ENCODE_DOUBLE(p, n) {                          \
+    uint64_t _n;                                  \
+    size_t _u;                                      \
+    uint8_t *_p = (uint8_t*)(p);                          \
+                                        \
+    HDcompile_assert(sizeof(double) == 8);                      \
+    HDcompile_assert(sizeof(double) == sizeof(uint64_t));              \
+    HDmemcpy(&_n, &n, sizeof(double));                          \
+    for(_u = 0; _u < sizeof(uint64_t); _u++, _n >>= 8)                  \
+        *_p++ = (uint8_t)(_n & 0xff);                          \
+    (p) = (uint8_t *)(p) + 8;                              \
 }
 
 /* DECODE converts little endian bytes pointed by p to integer values and store
@@ -148,68 +148,68 @@ typedef struct H5F_t H5F_t;
  * correctly even if i is actually a 64bit int like in a Cray.
  */
 
-#  define INT16DECODE(p, i) {						      \
-   (i)	= (int16_t)((*(p) & 0xff));      (p)++;				      \
+#  define INT16DECODE(p, i) {                              \
+   (i)    = (int16_t)((*(p) & 0xff));      (p)++;                      \
    (i) |= (int16_t)(((*(p) & 0xff) << 8) |                                    \
-                   ((*(p) & 0x80) ? ~0xffff : 0x0)); (p)++;		      \
+                   ((*(p) & 0x80) ? ~0xffff : 0x0)); (p)++;              \
 }
 
-#  define UINT16DECODE(p, i) {						      \
-   (i)	= (uint16_t) (*(p) & 0xff);	  (p)++;			      \
-   (i) |= (uint16_t)((*(p) & 0xff) << 8); (p)++;			      \
+#  define UINT16DECODE(p, i) {                              \
+   (i)    = (uint16_t) (*(p) & 0xff);      (p)++;                  \
+   (i) |= (uint16_t)((*(p) & 0xff) << 8); (p)++;                  \
 }
 
-#  define INT32DECODE(p, i) {						      \
-   (i)	= ((int32_t)(*(p) & (unsigned)0xff));	  (p)++;		      \
-   (i) |= ((int32_t)(*(p) & (unsigned)0xff) <<  8); (p)++;		      \
-   (i) |= ((int32_t)(*(p) & (unsigned)0xff) << 16); (p)++;		      \
+#  define INT32DECODE(p, i) {                              \
+   (i)    = ((int32_t)(*(p) & (unsigned)0xff));      (p)++;              \
+   (i) |= ((int32_t)(*(p) & (unsigned)0xff) <<  8); (p)++;              \
+   (i) |= ((int32_t)(*(p) & (unsigned)0xff) << 16); (p)++;              \
    (i) |= ((int32_t)(((*(p) & (unsigned)0xff) << 24) |                        \
                    ((*(p) & (unsigned)0x80) ? (unsigned)(~0xffffffff) : (unsigned)0x0))); (p)++; \
 }
 
-#  define UINT32DECODE(p, i) {						      \
-   (i)	=  (uint32_t)(*(p) & 0xff);	   (p)++;			      \
-   (i) |= ((uint32_t)(*(p) & 0xff) <<  8); (p)++;			      \
-   (i) |= ((uint32_t)(*(p) & 0xff) << 16); (p)++;			      \
-   (i) |= ((uint32_t)(*(p) & 0xff) << 24); (p)++;			      \
+#  define UINT32DECODE(p, i) {                              \
+   (i)    =  (uint32_t)(*(p) & 0xff);       (p)++;                  \
+   (i) |= ((uint32_t)(*(p) & 0xff) <<  8); (p)++;                  \
+   (i) |= ((uint32_t)(*(p) & 0xff) << 16); (p)++;                  \
+   (i) |= ((uint32_t)(*(p) & 0xff) << 24); (p)++;                  \
 }
 
 /* Decode a variable-sized buffer */
 /* (Assumes that the high bits of the integer will be zero) */
-#  define DECODE_VAR(p, n, l) {						      \
-   size_t _i;								      \
-									      \
-   n = 0;								      \
-   (p) += l;								      \
-   for (_i = 0; _i < l; _i++)						      \
-      n = (n << 8) | *(--p);						      \
-   (p) += l;								      \
+#  define DECODE_VAR(p, n, l) {                              \
+   size_t _i;                                      \
+                                        \
+   n = 0;                                      \
+   (p) += l;                                      \
+   for (_i = 0; _i < l; _i++)                              \
+      n = (n << 8) | *(--p);                              \
+   (p) += l;                                      \
 }
 
 /* Decode a variable-sized buffer into a 32-bit unsigned integer */
 /* (Assumes that the high bits of the integer will be zero) */
 #  define UINT32DECODE_VAR(p, n, l)     DECODE_VAR(p, n, l)
 
-#  define INT64DECODE(p, n) {						      \
-   /* WE DON'T CHECK FOR OVERFLOW! */					      \
-   size_t _i;								      \
-									      \
-   n = 0;								      \
-   (p) += 8;								      \
-   for (_i = 0; _i < sizeof(int64_t); _i++)					      \
-      n = (n << 8) | *(--p);						      \
-   (p) += 8;								      \
+#  define INT64DECODE(p, n) {                              \
+   /* WE DON'T CHECK FOR OVERFLOW! */                          \
+   size_t _i;                                      \
+                                        \
+   n = 0;                                      \
+   (p) += 8;                                      \
+   for (_i = 0; _i < sizeof(int64_t); _i++)                          \
+      n = (n << 8) | *(--p);                              \
+   (p) += 8;                                      \
 }
 
-#  define UINT64DECODE(p, n) {						      \
-   /* WE DON'T CHECK FOR OVERFLOW! */					      \
-   size_t _i;								      \
-									      \
-   n = 0;								      \
-   (p) += 8;								      \
-   for (_i = 0; _i < sizeof(uint64_t); _i++)				      \
-      n = (n << 8) | *(--p);						      \
-   (p) += 8;								      \
+#  define UINT64DECODE(p, n) {                              \
+   /* WE DON'T CHECK FOR OVERFLOW! */                          \
+   size_t _i;                                      \
+                                        \
+   n = 0;                                      \
+   (p) += 8;                                      \
+   for (_i = 0; _i < sizeof(uint64_t); _i++)                      \
+      n = (n << 8) | *(--p);                              \
+   (p) += 8;                                      \
 }
 
 /* Decode a variable-sized buffer into a 64-bit unsigned integer */
@@ -218,58 +218,58 @@ typedef struct H5F_t H5F_t;
 
 /* Decode a 64-bit unsigned integer and its length from a variable-sized buffer */
 /* (Assumes that the high bits of the integer will be zero) */
-#  define UINT64DECODE_VARLEN(p, n) {					      \
-   unsigned _s = *(p)++;						      \
-									      \
-   UINT64DECODE_VAR(p, n, _s);						      \
+#  define UINT64DECODE_VARLEN(p, n) {                          \
+   unsigned _s = *(p)++;                              \
+                                        \
+   UINT64DECODE_VAR(p, n, _s);                              \
 }
 
-#  define H5_DECODE_UNSIGNED(p, n) {					      \
-    HDcompile_assert(sizeof(unsigned) == sizeof(uint32_t));		      \
-    UINT32DECODE(p, n)							      \
+#  define H5_DECODE_UNSIGNED(p, n) {                          \
+    HDcompile_assert(sizeof(unsigned) == sizeof(uint32_t));              \
+    UINT32DECODE(p, n)                                  \
 }
 
 /* Assumes the endianness of uint64_t is the same as double */
-#  define H5_DECODE_DOUBLE(p, n) {					      \
-    uint64_t _n;							      \
-    size_t _u;								      \
-									      \
-    HDcompile_assert(sizeof(double) == 8);				      \
-    HDcompile_assert(sizeof(double) == sizeof(uint64_t));		      \
-    _n = 0;								      \
-    (p) += 8;								      \
-    for(_u = 0; _u < sizeof(uint64_t); _u++)				      \
-        _n = (_n << 8) | *(--p);					      \
-    HDmemcpy(&(n), &_n, sizeof(double));					      \
-    (p) += 8;								      \
+#  define H5_DECODE_DOUBLE(p, n) {                          \
+    uint64_t _n;                                  \
+    size_t _u;                                      \
+                                        \
+    HDcompile_assert(sizeof(double) == 8);                      \
+    HDcompile_assert(sizeof(double) == sizeof(uint64_t));              \
+    _n = 0;                                      \
+    (p) += 8;                                      \
+    for(_u = 0; _u < sizeof(uint64_t); _u++)                      \
+        _n = (_n << 8) | *(--p);                          \
+    HDmemcpy(&(n), &_n, sizeof(double));                          \
+    (p) += 8;                                      \
 }
 
 /* Address-related macros */
-#define H5F_addr_overflow(X,Z)	(HADDR_UNDEF==(X) ||			      \
-				 HADDR_UNDEF==(X)+(haddr_t)(Z) ||	      \
-				 (X)+(haddr_t)(Z)<(X))
-#define H5F_addr_defined(X)	((X)!=HADDR_UNDEF)
+#define H5F_addr_overflow(X,Z)    (HADDR_UNDEF==(X) ||                  \
+                HADDR_UNDEF==(X)+(haddr_t)(Z) ||          \
+                (X)+(haddr_t)(Z)<(X))
+#define H5F_addr_defined(X)    ((X)!=HADDR_UNDEF)
 /* The H5F_addr_eq() macro guarantees that Y is not HADDR_UNDEF by making
  * certain that X is not HADDR_UNDEF and then checking that X equals Y
  */
-#define H5F_addr_eq(X,Y)	((X)!=HADDR_UNDEF &&			      \
-				 (X)==(Y))
-#define H5F_addr_ne(X,Y)	(!H5F_addr_eq((X),(Y)))
-#define H5F_addr_lt(X,Y) 	((X)!=HADDR_UNDEF &&			      \
-				 (Y)!=HADDR_UNDEF &&			      \
-				 (X)<(Y))
-#define H5F_addr_le(X,Y)	((X)!=HADDR_UNDEF &&			      \
-				 (Y)!=HADDR_UNDEF &&			      \
-				 (X)<=(Y))
-#define H5F_addr_gt(X,Y)	((X)!=HADDR_UNDEF &&			      \
-				 (Y)!=HADDR_UNDEF &&			      \
-				 (X)>(Y))
-#define H5F_addr_ge(X,Y)	((X)!=HADDR_UNDEF &&			      \
-				 (Y)!=HADDR_UNDEF &&			      \
-				 (X)>=(Y))
-#define H5F_addr_cmp(X,Y)	(H5F_addr_eq((X), (Y)) ? 0 :		      \
-				 (H5F_addr_lt((X), (Y)) ? -1 : 1))
-#define H5F_addr_pow2(N)	((haddr_t)1<<(N))
+#define H5F_addr_eq(X,Y)    ((X)!=HADDR_UNDEF &&                  \
+                (X)==(Y))
+#define H5F_addr_ne(X,Y)    (!H5F_addr_eq((X),(Y)))
+#define H5F_addr_lt(X,Y)     ((X)!=HADDR_UNDEF &&                  \
+                (Y)!=HADDR_UNDEF &&                  \
+                (X)<(Y))
+#define H5F_addr_le(X,Y)    ((X)!=HADDR_UNDEF &&                  \
+                (Y)!=HADDR_UNDEF &&                  \
+                (X)<=(Y))
+#define H5F_addr_gt(X,Y)    ((X)!=HADDR_UNDEF &&                  \
+                (Y)!=HADDR_UNDEF &&                  \
+                (X)>(Y))
+#define H5F_addr_ge(X,Y)    ((X)!=HADDR_UNDEF &&                  \
+                (Y)!=HADDR_UNDEF &&                  \
+                (X)>=(Y))
+#define H5F_addr_cmp(X,Y)    (H5F_addr_eq((X), (Y)) ? 0 :              \
+                (H5F_addr_lt((X), (Y)) ? -1 : 1))
+#define H5F_addr_pow2(N)    ((haddr_t)1<<(N))
 #define H5F_addr_overlap(O1,L1,O2,L2) (((O1) < (O2) && ((O1) + (L1)) > (O2)) || \
                                  ((O1) >= (O2) && (O1) < ((O2) + (L2))))
 
@@ -294,7 +294,7 @@ typedef struct H5F_t H5F_t;
 #define H5F_BASE_ADDR(F)        ((F)->shared->sblock->base_addr)
 #define H5F_SYM_LEAF_K(F)       ((F)->shared->sblock->sym_leaf_k)
 #define H5F_KVALUE(F,T)         ((F)->shared->sblock->btree_k[(T)->id])
-#define H5F_NREFS(F)		((F)->shared->nrefs)
+#define H5F_NREFS(F)        ((F)->shared->nrefs)
 #define H5F_SIZEOF_ADDR(F)      ((F)->shared->sizeof_addr)
 #define H5F_SIZEOF_SIZE(F)      ((F)->shared->sizeof_size)
 #define H5F_SOHM_ADDR(F)        ((F)->shared->sohm_addr)
@@ -325,8 +325,8 @@ typedef struct H5F_t H5F_t;
 #define H5F_USE_MDC_LOGGING(F)  ((F)->shared->use_mdc_logging)
 #define H5F_START_MDC_LOG_ON_ACCESS(F)  ((F)->shared->start_mdc_log_on_access)
 #define H5F_MDC_LOG_LOCATION(F) ((F)->shared->mdc_log_location)
-#define H5F_ALIGNMENT(F)   	((F)->shared->alignment)
-#define H5F_THRESHOLD(F)   	((F)->shared->threshold)
+#define H5F_ALIGNMENT(F)       ((F)->shared->alignment)
+#define H5F_THRESHOLD(F)       ((F)->shared->threshold)
 #define H5F_PGEND_META_THRES(F) ((F)->shared->fs.pgend_meta_thres)
 #define H5F_POINT_OF_NO_RETURN(F) ((F)->shared->fs.point_of_no_return)
 #define H5F_FIRST_ALLOC_DEALLOC(F) ((F)->shared->first_alloc_dealloc)
@@ -351,7 +351,7 @@ typedef struct H5F_t H5F_t;
 #define H5F_BASE_ADDR(F)        (H5F_get_base_addr(F))
 #define H5F_SYM_LEAF_K(F)       (H5F_sym_leaf_k(F))
 #define H5F_KVALUE(F,T)         (H5F_Kvalue(F,T))
-#define H5F_NREFS(F)		(H5F_get_nrefs(F))
+#define H5F_NREFS(F)        (H5F_get_nrefs(F))
 #define H5F_SIZEOF_ADDR(F)      (H5F_sizeof_addr(F))
 #define H5F_SIZEOF_SIZE(F)      (H5F_sizeof_size(F))
 #define H5F_SOHM_ADDR(F)        (H5F_get_sohm_addr(F))
@@ -382,8 +382,8 @@ typedef struct H5F_t H5F_t;
 #define H5F_USE_MDC_LOGGING(F)  (H5F_use_mdc_logging(F))
 #define H5F_START_MDC_LOG_ON_ACCESS(F)  (H5F_start_mdc_log_on_access(F))
 #define H5F_MDC_LOG_LOCATION(F) (H5F_mdc_log_location(F))
-#define H5F_ALIGNMENT(F)    	(H5F_get_alignment(F))
-#define H5F_THRESHOLD(F)    	(H5F_get_threshold(F))
+#define H5F_ALIGNMENT(F)        (H5F_get_alignment(F))
+#define H5F_THRESHOLD(F)        (H5F_get_threshold(F))
 #define H5F_PGEND_META_THRES(F) (H5F_get_pgend_meta_thres(F))
 #define H5F_POINT_OF_NO_RETURN(F) (H5F_get_point_of_no_return(F))
 #define H5F_FIRST_ALLOC_DEALLOC(F) (H5F_get_first_alloc_dealloc(F))
@@ -392,32 +392,32 @@ typedef struct H5F_t H5F_t;
 
 
 /* Macros to encode/decode offset/length's for storing in the file */
-#define H5F_ENCODE_OFFSET(f,p,o) switch(H5F_SIZEOF_ADDR(f)) {		      \
-    case 4: UINT32ENCODE(p,o); break;					      \
-    case 8: UINT64ENCODE(p,o); break;					      \
-    case 2: UINT16ENCODE(p,o); break;					      \
+#define H5F_ENCODE_OFFSET(f,p,o) switch(H5F_SIZEOF_ADDR(f)) {              \
+    case 4: UINT32ENCODE(p,o); break;                          \
+    case 8: UINT64ENCODE(p,o); break;                          \
+    case 2: UINT16ENCODE(p,o); break;                          \
 }
 
-#define H5F_DECODE_OFFSET(f,p,o) switch (H5F_SIZEOF_ADDR (f)) {		      \
-    case 4: UINT32DECODE(p, o); break;					      \
-    case 8: UINT64DECODE(p, o); break;					      \
-    case 2: UINT16DECODE(p, o); break;					      \
+#define H5F_DECODE_OFFSET(f,p,o) switch (H5F_SIZEOF_ADDR (f)) {              \
+    case 4: UINT32DECODE(p, o); break;                          \
+    case 8: UINT64DECODE(p, o); break;                          \
+    case 2: UINT16DECODE(p, o); break;                          \
 }
 
-#define H5F_ENCODE_LENGTH_LEN(p,l,s) switch(s) {		      	      \
-    case 4: UINT32ENCODE(p,l); break;					      \
-    case 8: UINT64ENCODE(p,l); break;					      \
-    case 2: UINT16ENCODE(p,l); break;					      \
-    default: HDassert("bad sizeof size" && 0);				      \
+#define H5F_ENCODE_LENGTH_LEN(p,l,s) switch(s) {                        \
+    case 4: UINT32ENCODE(p,l); break;                          \
+    case 8: UINT64ENCODE(p,l); break;                          \
+    case 2: UINT16ENCODE(p,l); break;                          \
+    default: HDassert("bad sizeof size" && 0);                      \
 }
 
 #define H5F_ENCODE_LENGTH(f,p,l) H5F_ENCODE_LENGTH_LEN(p,l,H5F_SIZEOF_SIZE(f))
 
-#define H5F_DECODE_LENGTH_LEN(p,l,s) switch(s) {		              \
-    case 4: UINT32DECODE(p,l); break;					      \
-    case 8: UINT64DECODE(p,l); break;					      \
-    case 2: UINT16DECODE(p,l); break;					      \
-    default: HDassert("bad sizeof size" && 0);				      \
+#define H5F_DECODE_LENGTH_LEN(p,l,s) switch(s) {                      \
+    case 4: UINT32DECODE(p,l); break;                          \
+    case 8: UINT64DECODE(p,l); break;                          \
+    case 2: UINT16DECODE(p,l); break;                          \
+    default: HDassert("bad sizeof size" && 0);                      \
 }
 
 #define H5F_DECODE_LENGTH(f,p,l) H5F_DECODE_LENGTH_LEN(p,l,H5F_SIZEOF_SIZE(f))
@@ -427,13 +427,13 @@ typedef struct H5F_t H5F_t;
  * with.
  */
 #if (H5_SIZEOF_SIZE_T >= H5_SIZEOF_OFF_T)
-#   define H5F_OVERFLOW_SIZET2OFFT(X)					      \
+#   define H5F_OVERFLOW_SIZET2OFFT(X)                          \
     ((size_t)(X)>=(size_t)((size_t)1<<(8*sizeof(HDoff_t)-1)))
 #else
 #   define H5F_OVERFLOW_SIZET2OFFT(X) 0
 #endif
 #if (H5_SIZEOF_HSIZE_T >= H5_SIZEOF_OFF_T)
-#   define H5F_OVERFLOW_HSIZET2OFFT(X)					      \
+#   define H5F_OVERFLOW_HSIZET2OFFT(X)                          \
     ((hsize_t)(X) >= (hsize_t)((hsize_t)1 << (8 * sizeof(HDoff_t) - 1)))
 #else
 #   define H5F_OVERFLOW_HSIZET2OFFT(X) 0
@@ -461,14 +461,14 @@ typedef struct H5F_t H5F_t;
 #define H5F_CRT_SHMSG_LIST_MAX_NAME  "shmsg_list_max"   /* Shared message list maximum size */
 #define H5F_CRT_SHMSG_BTREE_MIN_NAME "shmsg_btree_min"  /* Shared message B-tree minimum size */
 #define H5F_CRT_FILE_SPACE_STRATEGY_NAME "file_space_strategy"  /* File space handling strategy */
-#define H5F_CRT_FREE_SPACE_PERSIST_NAME "free_space_persist"  	/* Free-space persisting status */
+#define H5F_CRT_FREE_SPACE_PERSIST_NAME "free_space_persist"      /* Free-space persisting status */
 #define H5F_CRT_FREE_SPACE_THRESHOLD_NAME "free_space_threshold"  /* Free space section threshold */
 #define H5F_CRT_FILE_SPACE_PAGE_SIZE_NAME "file_space_page_size"  /* File space page size */
 
 
 
 /* ========= File Access properties ============ */
-#define H5F_ACS_META_CACHE_INIT_CONFIG_NAME	"mdc_initCacheCfg" /* Initial metadata cache resize configuration */
+#define H5F_ACS_META_CACHE_INIT_CONFIG_NAME    "mdc_initCacheCfg" /* Initial metadata cache resize configuration */
 #define H5F_ACS_DATA_CACHE_NUM_SLOTS_NAME       "rdcc_nslots"   /* Size of raw data chunk cache(slots) */
 #define H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME       "rdcc_nbytes"   /* Size of raw data chunk cache(bytes) */
 #define H5F_ACS_PREEMPT_READ_CHUNKS_NAME        "rdcc_w0"       /* Preemption read chunks first */
@@ -487,7 +487,7 @@ typedef struct H5F_t H5F_t;
 #define H5F_ACS_LATEST_FORMAT_NAME              "latest_format" /* 'Use latest format version' flag */
 #define H5F_ACS_WANT_POSIX_FD_NAME              "want_posix_fd" /* Internal: query the file descriptor from the core VFD, instead of the memory address */
 #define H5F_ACS_METADATA_READ_ATTEMPTS_NAME     "metadata_read_attempts" /* # of metadata read attempts */
-#define H5F_ACS_OBJECT_FLUSH_CB_NAME            "object_flush_cb" 	 /* Object flush callback */
+#define H5F_ACS_OBJECT_FLUSH_CB_NAME            "object_flush_cb"      /* Object flush callback */
 #define H5F_ACS_EFC_SIZE_NAME                   "efc_size"      /* Size of external file cache */
 #define H5F_ACS_FILE_IMAGE_INFO_NAME            "file_image_info" /* struct containing initial file image and callback info */
 #define H5F_ACS_CLEAR_STATUS_FLAGS_NAME         "clear_status_flags" /* Whether to clear superblock status_flags (private property only used by h5clear) */
@@ -504,7 +504,7 @@ typedef struct H5F_t H5F_t;
 #define H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_NAME   "page_buffer_min_raw_perc" /* the min raw data percentage for the page buffer cache */
 
 /* ======================== File Mount properties ====================*/
-#define H5F_MNT_SYM_LOCAL_NAME 		"local"                 /* Whether absolute symlinks local to file. */
+#define H5F_MNT_SYM_LOCAL_NAME         "local"                 /* Whether absolute symlinks local to file. */
 
 
 #ifdef H5_HAVE_PARALLEL
@@ -513,20 +513,20 @@ typedef struct H5F_t H5F_t;
 #endif /* H5_HAVE_PARALLEL */
 
 /* Define the HDF5 file signature */
-#define H5F_SIGNATURE	  "\211HDF\r\n\032\n"
+#define H5F_SIGNATURE      "\211HDF\r\n\032\n"
 #define H5F_SIGNATURE_LEN 8
 
 /* Version #'s of the major components of the file format */
-#define HDF5_SUPERBLOCK_VERSION_DEF	0	/* The default super block format	  */
-#define HDF5_SUPERBLOCK_VERSION_1	1	/* Version with non-default B-tree 'K' value */
-#define HDF5_SUPERBLOCK_VERSION_2	2	/* Revised version with superblock extension and checksum */
-#define HDF5_SUPERBLOCK_VERSION_3	3	/* With file locking and consistency flags (at least this version for SWMR support) */
-#define HDF5_SUPERBLOCK_VERSION_LATEST	HDF5_SUPERBLOCK_VERSION_3	/* The maximum super block format    */
+#define HDF5_SUPERBLOCK_VERSION_DEF    0    /* The default super block format      */
+#define HDF5_SUPERBLOCK_VERSION_1    1    /* Version with non-default B-tree 'K' value */
+#define HDF5_SUPERBLOCK_VERSION_2    2    /* Revised version with superblock extension and checksum */
+#define HDF5_SUPERBLOCK_VERSION_3    3    /* With file locking and consistency flags (at least this version for SWMR support) */
+#define HDF5_SUPERBLOCK_VERSION_LATEST    HDF5_SUPERBLOCK_VERSION_3    /* The maximum super block format    */
 #define HDF5_SUPERBLOCK_VERSION_V18_LATEST HDF5_SUPERBLOCK_VERSION_2    /* The latest superblock version for v18 */
-#define HDF5_FREESPACE_VERSION	        0	/* of the Free-Space Info	  */
-#define HDF5_OBJECTDIR_VERSION	        0	/* of the Object Directory format */
-#define HDF5_SHAREDHEADER_VERSION       0	/* of the Shared-Header Info	  */
-#define HDF5_DRIVERINFO_VERSION_0       0	/* of the Driver Information Block*/
+#define HDF5_FREESPACE_VERSION            0    /* of the Free-Space Info      */
+#define HDF5_OBJECTDIR_VERSION            0    /* of the Object Directory format */
+#define HDF5_SHAREDHEADER_VERSION       0    /* of the Shared-Header Info      */
+#define HDF5_DRIVERINFO_VERSION_0       0    /* of the Driver Information Block*/
 
 /* B-tree internal 'K' values */
 #define HDF5_BTREE_SNODE_IK_DEF         16
@@ -536,54 +536,54 @@ typedef struct H5F_t H5F_t;
                                                     if it is changed, the code
                                                     must compensate. -QAK
                                                  */
-#define HDF5_BTREE_IK_MAX_ENTRIES       65536 	/* 2^16 - 2 bytes for storing entries (children) */
-						/* See format specification on version 1 B-trees */
+#define HDF5_BTREE_IK_MAX_ENTRIES       65536     /* 2^16 - 2 bytes for storing entries (children) */
+                        /* See format specification on version 1 B-trees */
 
 /* Default file space handling strategy */
-#define H5F_FILE_SPACE_STRATEGY_DEF	        H5F_FSPACE_STRATEGY_FSM_AGGR
+#define H5F_FILE_SPACE_STRATEGY_DEF            H5F_FSPACE_STRATEGY_FSM_AGGR
 
 /* Default free space section threshold used by free-space managers */
-#define H5F_FREE_SPACE_PERSIST_DEF	        FALSE
+#define H5F_FREE_SPACE_PERSIST_DEF            FALSE
 
 /* Default free space section threshold used by free-space managers */
-#define H5F_FREE_SPACE_THRESHOLD_DEF	        1
+#define H5F_FREE_SPACE_THRESHOLD_DEF            1
 
 /* For paged aggregation: default file space page size when not set */
-#define H5F_FILE_SPACE_PAGE_SIZE_DEF     	4096    
+#define H5F_FILE_SPACE_PAGE_SIZE_DEF         4096
 /* For paged aggregation: minimum value for file space page size */
-#define H5F_FILE_SPACE_PAGE_SIZE_MIN     	512
+#define H5F_FILE_SPACE_PAGE_SIZE_MIN         512
 /* For paged aggregation: maxiumum value for file space page size: 1 gigabyte */
-#define H5F_FILE_SPACE_PAGE_SIZE_MAX     	1024*1024*1024
+#define H5F_FILE_SPACE_PAGE_SIZE_MAX         1024*1024*1024
 
 /* For paged aggregation: drop free-space with size <= this threshold for small meta section */
 #define H5F_FILE_SPACE_PGEND_META_THRES  0
 
 /* Default for threshold for alignment (can be set via H5Pset_alignment()) */
-#define H5F_ALIGN_DEF			1
+#define H5F_ALIGN_DEF            1
 /* Default for alignment (can be set via H5Pset_alignment()) */
-#define H5F_ALIGN_THRHD_DEF		1
+#define H5F_ALIGN_THRHD_DEF        1
 /* Default size for meta data aggregation block (can be set via H5Pset_meta_block_size()) */
-#define H5F_META_BLOCK_SIZE_DEF		2048
+#define H5F_META_BLOCK_SIZE_DEF        2048
 /* Default size for small data aggregation block (can be set via H5Pset_small_data_block_size()) */
-#define H5F_SDATA_BLOCK_SIZE_DEF	2048
+#define H5F_SDATA_BLOCK_SIZE_DEF    2048
 
 /* Check for file using paged aggregation */
 #define H5F_PAGED_AGGR(F) (F->shared->fs_strategy == H5F_FSPACE_STRATEGY_PAGE && F->shared->fs_page_size)
 
 /* Metadata read attempt values */
-#define H5F_METADATA_READ_ATTEMPTS		1	/* Default # of read attempts for non-SWMR access */
-#define H5F_SWMR_METADATA_READ_ATTEMPTS		100	/* Default # of read attempts for SWMR access */
+#define H5F_METADATA_READ_ATTEMPTS        1    /* Default # of read attempts for non-SWMR access */
+#define H5F_SWMR_METADATA_READ_ATTEMPTS        100    /* Default # of read attempts for SWMR access */
 
 
 /* Macros to define signatures of all objects in the file */
 
 /* Size of signature information (on disk) */
 /* (all on-disk signatures should be this length) */
-#define H5_SIZEOF_MAGIC                 4
+#define H5_SIZEOF_MAGIC                   4
 
 /* Size of checksum information (on disk) */
 /* (all on-disk checksums should be this length) */
-#define H5_SIZEOF_CHKSUM              	4
+#define H5_SIZEOF_CHKSUM                  4
 
 /* v1 B-tree node signature */
 #define H5B_MAGIC                       "TREE"
@@ -704,11 +704,11 @@ typedef enum H5F_fs_state_t {
 typedef enum H5F_mem_page_t {
     H5F_MEM_PAGE_DEFAULT = 0,       /* Not used */
     H5F_MEM_PAGE_SUPER = 1,
-    H5F_MEM_PAGE_BTREE = 2,          
-    H5F_MEM_PAGE_DRAW = 3, 
-    H5F_MEM_PAGE_GHEAP = 4,      
-    H5F_MEM_PAGE_LHEAP = 5,      
-    H5F_MEM_PAGE_OHDR = 6,      
+    H5F_MEM_PAGE_BTREE = 2,
+    H5F_MEM_PAGE_DRAW = 3,
+    H5F_MEM_PAGE_GHEAP = 4,
+    H5F_MEM_PAGE_LHEAP = 5,
+    H5F_MEM_PAGE_OHDR = 6,
     H5F_MEM_PAGE_LARGE_SUPER = 7,
     H5F_MEM_PAGE_LARGE_BTREE = 8,
     H5F_MEM_PAGE_LARGE_DRAW = 9,
diff --git a/src/H5Fquery.c b/src/H5Fquery.c
index 61b4183..4765d00 100644
--- a/src/H5Fquery.c
+++ b/src/H5Fquery.c
@@ -144,7 +144,7 @@ H5F_get_actual_name(const H5F_t *f)
  * Function: H5F_get_extpath
  *
  * Purpose:  Retrieve the file's 'extpath' flags
- *           This is used by H5L_extern_traverse() and H5D_build_extfile_prefix() to retrieve the main file's location
+ *           This is used by H5L_extern_traverse() and H5D_build_file_prefix() to retrieve the main file's location
  *           when searching the target file.
  *
  * Return:   'extpath' on success/abort on failure (shouldn't fail)
diff --git a/src/H5Pdapl.c b/src/H5Pdapl.c
index 494de3e..da06297 100644
--- a/src/H5Pdapl.c
+++ b/src/H5Pdapl.c
@@ -71,6 +71,17 @@
 #define H5D_ACS_VDS_PRINTF_GAP_DEF              (hsize_t)0
 #define H5D_ACS_VDS_PRINTF_GAP_ENC              H5P__encode_hsize_t
 #define H5D_ACS_VDS_PRINTF_GAP_DEC              H5P__decode_hsize_t
+/* Definitions for VDS file prefix */
+#define H5D_ACS_VDS_PREFIX_SIZE                 sizeof(char *)
+#define H5D_ACS_VDS_PREFIX_DEF                  NULL /*default is no prefix */
+#define H5D_ACS_VDS_PREFIX_SET                  H5P__dapl_vds_file_pref_set
+#define H5D_ACS_VDS_PREFIX_GET                  H5P__dapl_vds_file_pref_get
+#define H5D_ACS_VDS_PREFIX_ENC                  H5P__dapl_vds_file_pref_enc
+#define H5D_ACS_VDS_PREFIX_DEC                  H5P__dapl_vds_file_pref_dec
+#define H5D_ACS_VDS_PREFIX_DEL                  H5P__dapl_vds_file_pref_del
+#define H5D_ACS_VDS_PREFIX_COPY                 H5P__dapl_vds_file_pref_copy
+#define H5D_ACS_VDS_PREFIX_CMP                  H5P__dapl_vds_file_pref_cmp
+#define H5D_ACS_VDS_PREFIX_CLOSE                H5P__dapl_vds_file_pref_close
 /* Definition for append flush */
 #define H5D_ACS_APPEND_FLUSH_SIZE               sizeof(H5D_append_flush_t)
 #define H5D_ACS_APPEND_FLUSH_DEF                {0,{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},NULL,NULL}
@@ -112,6 +123,14 @@ static herr_t H5P__decode_chunk_cache_nbytes(const void **_pp, void *_value);
 /* Property list callbacks */
 static herr_t H5P__dacc_vds_view_enc(const void *value, void **pp, size_t *size);
 static herr_t H5P__dacc_vds_view_dec(const void **pp, void *value);
+static herr_t H5P__dapl_vds_file_pref_set(hid_t prop_id, const char* name, size_t size, void* value);
+static herr_t H5P__dapl_vds_file_pref_get(hid_t prop_id, const char* name, size_t size, void* value);
+static herr_t H5P__dapl_vds_file_pref_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__dapl_vds_file_pref_dec(const void **_pp, void *value);
+static herr_t H5P__dapl_vds_file_pref_del(hid_t prop_id, const char* name, size_t size, void* value);
+static herr_t H5P__dapl_vds_file_pref_copy(const char* name, size_t size, void* value);
+static int H5P__dapl_vds_file_pref_cmp(const void *value1, const void *value2, size_t size);
+static herr_t H5P__dapl_vds_file_pref_close(const char* name, size_t size, void* value);
 
 /* Property list callbacks */
 static herr_t H5P__dapl_efile_pref_set(hid_t prop_id, const char* name, size_t size, void* value);
@@ -160,6 +179,7 @@ const H5P_libclass_t H5P_CLS_DACC[1] = {{
 /* Property value defaults */
 static const H5D_append_flush_t H5D_def_append_flush_g = H5D_ACS_APPEND_FLUSH_DEF;   /* Default setting for append flush */
 static const char *H5D_def_efile_prefix_g = H5D_ACS_EFILE_PREFIX_DEF;                /* Default external file prefix string */
+static const char *H5D_def_vds_prefix_g = H5D_ACS_VDS_PREFIX_DEF;                    /* Default vds prefix string */
 
 
 /*-------------------------------------------------------------------------
@@ -210,6 +230,12 @@ H5P__dacc_reg_prop(H5P_genclass_t *pclass)
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
+    /* Register property for vds prefix */
+    if(H5P_register_real(pclass, H5D_ACS_VDS_PREFIX_NAME, H5D_ACS_VDS_PREFIX_SIZE, &H5D_def_vds_prefix_g,
+            NULL, H5D_ACS_VDS_PREFIX_SET, H5D_ACS_VDS_PREFIX_GET, H5D_ACS_VDS_PREFIX_ENC, H5D_ACS_VDS_PREFIX_DEC,
+            H5D_ACS_VDS_PREFIX_DEL, H5D_ACS_VDS_PREFIX_COPY, H5D_ACS_VDS_PREFIX_CMP, H5D_ACS_VDS_PREFIX_CLOSE) < 0)
+         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
+
     /* Register info for append flush */
     /* (Note: this property should not have an encode/decode callback -QAK) */
     if(H5P_register_real(pclass, H5D_ACS_APPEND_FLUSH_NAME, H5D_ACS_APPEND_FLUSH_SIZE, &H5D_def_append_flush_g,
@@ -226,6 +252,254 @@ done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5P__dacc_reg_prop() */
 
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__dapl_vds_file_pref_set
+ *
+ * Purpose:     Copies a vds file prefix property when it's set
+ *              for a property list
+ *
+ * Return:      SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_set(hid_t H5_ATTR_UNUSED prop_id, const char H5_ATTR_UNUSED *name,
+    size_t H5_ATTR_UNUSED size, void *value)
+{
+    FUNC_ENTER_STATIC_NOERR
+
+    /* Sanity check */
+    HDassert(value);
+
+    /* Copy the prefix */
+    *(char **)value = H5MM_xstrdup(*(const char **)value);
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_set() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__dapl_vds_file_pref_get
+ *
+ * Purpose:     Copies a vds file prefix property when it's retrieved
+ *              from a property list
+ *
+ * Return:      SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_get(hid_t H5_ATTR_UNUSED prop_id, const char H5_ATTR_UNUSED *name,
+    size_t H5_ATTR_UNUSED size, void *value)
+{
+    FUNC_ENTER_STATIC_NOERR
+
+    /* Sanity check */
+    HDassert(value);
+
+    /* Copy the prefix */
+    *(char **)value = H5MM_xstrdup(*(const char **)value);
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_get() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__dapl_vds_file_pref_enc
+ *
+ * Purpose:     Callback routine which is called whenever the vds file flags
+ *              property in the dataset access property list is
+ *              encoded.
+ *
+ * Return:      SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_enc(const void *value, void **_pp, size_t *size)
+{
+    const char *vds_file_pref = *(const char * const *)value;
+    uint8_t **pp = (uint8_t **)_pp;
+    size_t len = 0;
+    uint64_t enc_value;
+    unsigned enc_size;
+
+    FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+    HDcompile_assert(sizeof(size_t) <= sizeof(uint64_t));
+
+    /* calculate prefix length */
+    if(NULL != vds_file_pref)
+        len = HDstrlen(vds_file_pref);
+
+    enc_value = (uint64_t)len;
+    enc_size = H5VM_limit_enc_size(enc_value);
+    HDassert(enc_size < 256);
+
+    if(NULL != *pp) {
+        /* encode the length of the prefix */
+        *(*pp)++ = (uint8_t)enc_size;
+        UINT64ENCODE_VAR(*pp, enc_value, enc_size);
+
+        /* encode the prefix */
+        if(NULL != vds_file_pref) {
+            HDmemcpy(*(char **)pp, vds_file_pref, len);
+            *pp += len;
+        } /* end if */
+    } /* end if */
+
+    *size += (1 + enc_size);
+    if(NULL != vds_file_pref)
+        *size += len;
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_enc() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__dapl_vds_file_pref_dec
+ *
+ * Purpose:     Callback routine which is called whenever the vds file prefix
+ *              property in the dataset access property list is
+ *              decoded.
+ *
+ * Return:      SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_dec(const void **_pp, void *_value)
+{
+    char **vds_file_pref = (char **)_value;
+    const uint8_t **pp = (const uint8_t **)_pp;
+    size_t len;
+    uint64_t enc_value;                 /* Decoded property value */
+    unsigned enc_size;                  /* Size of encoded property */
+    herr_t ret_value = SUCCEED;
+
+    FUNC_ENTER_NOAPI_NOINIT
+
+    HDassert(pp);
+    HDassert(*pp);
+    HDassert(vds_file_pref);
+    HDcompile_assert(sizeof(size_t) <= sizeof(uint64_t));
+
+    /* Decode the size */
+    enc_size = *(*pp)++;
+    HDassert(enc_size < 256);
+
+    /* Decode the value */
+    UINT64DECODE_VAR(*pp, enc_value, enc_size);
+    len = (size_t)enc_value;
+
+    if(0 != len) {
+        /* Make a copy of the user's prefix string */
+        if(NULL == (*vds_file_pref = (char *)H5MM_malloc(len + 1)))
+            HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "memory allocation failed for prefix")
+        HDstrncpy(*vds_file_pref, *(const char **)pp, len);
+        (*vds_file_pref)[len] = '\0';
+
+        *pp += len;
+    } /* end if */
+    else
+        *vds_file_pref = NULL;
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5P__dapl_vds_file_pref_dec() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__dapl_vds_file_pref_del
+ *
+ * Purpose:     Frees memory used to store the vds file prefix string
+ *
+ * Return:      SUCCEED (Can't fail)
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_del(hid_t H5_ATTR_UNUSED prop_id, const char H5_ATTR_UNUSED *name,
+    size_t H5_ATTR_UNUSED size, void *value)
+{
+    FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+    HDassert(value);
+
+    H5MM_xfree(*(void **)value);
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_del() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__dapl_vds_file_pref_copy
+ *
+ * Purpose:     Creates a copy of the vds file prefix string
+ *
+ * Return:      SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_copy(const char H5_ATTR_UNUSED *name, size_t H5_ATTR_UNUSED size, void *value)
+{
+    FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+    HDassert(value);
+
+    *(char **)value = H5MM_xstrdup(*(const char **)value);
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_copy() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:       H5P__dapl_vds_file_pref_cmp
+ *
+ * Purpose:        Callback routine which is called whenever the vds file prefix
+ *                 property in the dataset creation property list is
+ *                 compared.
+ *
+ * Return:         zero if VALUE1 and VALUE2 are equal, non zero otherwise.
+ *-------------------------------------------------------------------------
+ */
+static int
+H5P__dapl_vds_file_pref_cmp(const void *value1, const void *value2, size_t H5_ATTR_UNUSED size)
+{
+    const char *pref1 = *(const char * const *)value1;
+    const char *pref2 = *(const char * const *)value2;
+    int ret_value = 0;
+
+    FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+    if(NULL == pref1 && NULL != pref2)
+        HGOTO_DONE(1);
+    if(NULL != pref1 && NULL == pref2)
+        HGOTO_DONE(-1);
+    if(NULL != pref1 && NULL != pref2)
+        ret_value = HDstrcmp(pref1, pref2);
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5P__dapl_vds_file_pref_cmp() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__dapl_vds_file_pref_close
+ *
+ * Purpose:     Frees memory used to store the vds file prefix string
+ *
+ * Return:      SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_close(const char H5_ATTR_UNUSED *name, size_t H5_ATTR_UNUSED size, void *value)
+{
+    FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+    HDassert(value);
+
+    H5MM_xfree(*(void **)value);
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_close() */
+
 
 /*-------------------------------------------------------------------------
  * Function:    H5P__dapl_efile_pref_set
@@ -1220,3 +1494,95 @@ done:
     FUNC_LEAVE_API(ret_value)
 } /* end H5Pget_efile_prefix() */
 
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Pset_virtual_prefix
+ *
+ * Purpose:     Set a prefix to be applied to the path of any vds files
+ *              traversed.
+  *
+ *              If the prefix starts with ${ORIGIN}, this will be replaced by
+ *              the absolute path of the directory of the HDF5 file containing
+ *              the dataset.
+ *
+ *              If the prefix is ".", no prefix will be applied.
+ *
+ *              This property can be overwritten by the environment variable
+ *              HDF5_VDS_PREFIX.
+ *
+ * Return:    Non-negative on success/Negative on failure
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Pset_virtual_prefix(hid_t plist_id, const char *prefix)
+{
+    H5P_genplist_t *plist;              /* Property list pointer */
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE2("e", "i*s", plist_id, prefix);
+
+    /* Get the plist structure */
+    if(NULL == (plist = H5P_object_verify(plist_id, H5P_DATASET_ACCESS)))
+        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")
+
+    /* Set prefix */
+    if(H5P_set(plist, H5D_ACS_VDS_PREFIX_NAME, &prefix) < 0)
+        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set prefix info")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Pset_virtual_prefix() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Pget_virtual_prefix
+ *
+ * Purpose:    Gets the prefix to be applied to any vds file
+ *              traversals made using this property list.
+ *
+ *              If the pointer is not NULL, it points to a user-allocated
+ *              buffer.
+ *
+ * Return:    Non-negative on success/Negative on failure
+ *-------------------------------------------------------------------------
+ */
+ssize_t
+H5Pget_virtual_prefix(hid_t plist_id, char *prefix, size_t size)
+{
+    H5P_genplist_t *plist;              /* Property list pointer */
+    char           *my_prefix;          /* Library's copy of the prefix */
+    size_t          len;                /* Length of prefix string */
+    ssize_t         ret_value;          /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE3("Zs", "i*sz", plist_id, prefix, size);
+
+    /* Get the plist structure */
+    if(NULL == (plist = H5P_object_verify(plist_id, H5P_DATASET_ACCESS)))
+        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")
+
+    /* Get the current prefix */
+    if(H5P_peek(plist, H5D_ACS_VDS_PREFIX_NAME, &my_prefix) < 0)
+        HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get vds file prefix")
+
+    /* Check for prefix being set */
+    if(my_prefix) {
+        /* Copy to user's buffer, if given */
+        len = HDstrlen(my_prefix);
+        if(prefix) {
+            HDstrncpy(prefix, my_prefix, MIN(len + 1, size));
+            if(len >= size)
+                prefix[size - 1] = '\0';
+        } /* end if */
+    } /* end if */
+    else
+        len = 0;
+
+    /* Set return value */
+    ret_value = (ssize_t)len;
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Pget_virtual_prefix() */
+
diff --git a/src/H5Pfapl.c b/src/H5Pfapl.c
index 915aa38..ea9bfb4 100644
--- a/src/H5Pfapl.c
+++ b/src/H5Pfapl.c
@@ -13,9 +13,9 @@
 
 /*-------------------------------------------------------------------------
  *
- * Created:		H5Pfapl.c
+ * Created:        H5Pfapl.c
  *
- * Purpose:		File access property list class routines
+ * Purpose:        File access property list class routines
  *
  *-------------------------------------------------------------------------
  */
@@ -41,7 +41,7 @@
 #include "H5Ppkg.h"             /* Property lists                       */
 
 /* Includes needed to set as default file driver */
-#include "H5FDsec2.h"           /* Posix unbuffered I/O	file driver     */
+#include "H5FDsec2.h"           /* Posix unbuffered I/O    file driver     */
 #include "H5FDstdio.h"          /* Standard C buffered I/O              */
 #ifdef H5_HAVE_WINDOWS
 #include "H5FDwindows.h"        /* Win32 I/O                            */
@@ -54,10 +54,10 @@
 
 /* ========= File Access properties ============ */
 /* Definitions for the initial metadata cache resize configuration */
-#define H5F_ACS_META_CACHE_INIT_CONFIG_SIZE	sizeof(H5AC_cache_config_t)
-#define H5F_ACS_META_CACHE_INIT_CONFIG_DEF	H5AC__DEFAULT_CACHE_CONFIG
-#define H5F_ACS_META_CACHE_INIT_CONFIG_ENC	H5P__facc_cache_config_enc
-#define H5F_ACS_META_CACHE_INIT_CONFIG_DEC	H5P__facc_cache_config_dec
+#define H5F_ACS_META_CACHE_INIT_CONFIG_SIZE    sizeof(H5AC_cache_config_t)
+#define H5F_ACS_META_CACHE_INIT_CONFIG_DEF    H5AC__DEFAULT_CACHE_CONFIG
+#define H5F_ACS_META_CACHE_INIT_CONFIG_ENC    H5P__facc_cache_config_enc
+#define H5F_ACS_META_CACHE_INIT_CONFIG_DEC    H5P__facc_cache_config_dec
 #define H5F_ACS_META_CACHE_INIT_CONFIG_CMP      H5P__facc_cache_config_cmp
 /* Definitions for size of raw data chunk cache(slots) */
 #define H5F_ACS_DATA_CACHE_NUM_SLOTS_SIZE       sizeof(size_t)
@@ -118,10 +118,10 @@
 #define H5F_ACS_FILE_DRV_CMP                    H5P__facc_file_driver_cmp
 #define H5F_ACS_FILE_DRV_CLOSE                  H5P__facc_file_driver_close
 /* Definition for file close degree */
-#define H5F_CLOSE_DEGREE_SIZE		        sizeof(H5F_close_degree_t)
-#define H5F_CLOSE_DEGREE_DEF		        H5F_CLOSE_DEFAULT
-#define H5F_CLOSE_DEGREE_ENC		        H5P__facc_fclose_degree_enc
-#define H5F_CLOSE_DEGREE_DEC		        H5P__facc_fclose_degree_dec
+#define H5F_CLOSE_DEGREE_SIZE                sizeof(H5F_close_degree_t)
+#define H5F_CLOSE_DEGREE_DEF                H5F_CLOSE_DEFAULT
+#define H5F_CLOSE_DEGREE_ENC                H5P__facc_fclose_degree_enc
+#define H5F_CLOSE_DEGREE_DEC                H5P__facc_fclose_degree_dec
 /* Definition for offset position in file for family file driver */
 #define H5F_ACS_FAMILY_OFFSET_SIZE              sizeof(hsize_t)
 #define H5F_ACS_FAMILY_OFFSET_DEF               0
@@ -175,12 +175,12 @@
 #define H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_ENC       H5P__encode_size_t
 #define H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_DEC       H5P__decode_size_t
 /* Definition for # of metadata read attempts */
-#define H5F_ACS_METADATA_READ_ATTEMPTS_SIZE	sizeof(unsigned)
-#define H5F_ACS_METADATA_READ_ATTEMPTS_DEF     	0
-#define H5F_ACS_METADATA_READ_ATTEMPTS_ENC     	H5P__encode_unsigned
-#define H5F_ACS_METADATA_READ_ATTEMPTS_DEC     	H5P__decode_unsigned
+#define H5F_ACS_METADATA_READ_ATTEMPTS_SIZE    sizeof(unsigned)
+#define H5F_ACS_METADATA_READ_ATTEMPTS_DEF         0
+#define H5F_ACS_METADATA_READ_ATTEMPTS_ENC         H5P__encode_unsigned
+#define H5F_ACS_METADATA_READ_ATTEMPTS_DEC         H5P__decode_unsigned
 /* Definition for object flush callback */
-#define H5F_ACS_OBJECT_FLUSH_CB_SIZE		sizeof(H5F_object_flush_t)
+#define H5F_ACS_OBJECT_FLUSH_CB_SIZE        sizeof(H5F_object_flush_t)
 #define H5F_ACS_OBJECT_FLUSH_CB_DEF             {NULL, NULL}
 /* Definition for status_flags in the superblock */
 #define H5F_ACS_CLEAR_STATUS_FLAGS_SIZE         sizeof(hbool_t)
@@ -309,21 +309,21 @@ static herr_t H5P__facc_cache_image_config_dec(const void **_pp, void *_value);
 
 /* File access property list class library initialization object */
 const H5P_libclass_t H5P_CLS_FACC[1] = {{
-    "file access",		/* Class name for debugging     */
+    "file access",        /* Class name for debugging     */
     H5P_TYPE_FILE_ACCESS,       /* Class type                   */
 
-    &H5P_CLS_ROOT_g,		/* Parent class                 */
-    &H5P_CLS_FILE_ACCESS_g,	/* Pointer to class             */
-    &H5P_CLS_FILE_ACCESS_ID_g,	/* Pointer to class ID          */
-    &H5P_LST_FILE_ACCESS_ID_g,	/* Pointer to default property list ID */
-    H5P__facc_reg_prop,		/* Default property registration routine */
-
-    NULL,			/* Class creation callback      */
-    NULL,		        /* Class creation callback info */
-    NULL,			/* Class copy callback          */
-    NULL,		        /* Class copy callback info     */
-    NULL,			/* Class close callback         */
-    NULL 		        /* Class close callback info    */
+    &H5P_CLS_ROOT_g,        /* Parent class                 */
+    &H5P_CLS_FILE_ACCESS_g,    /* Pointer to class             */
+    &H5P_CLS_FILE_ACCESS_ID_g,    /* Pointer to class ID          */
+    &H5P_LST_FILE_ACCESS_ID_g,    /* Pointer to default property list ID */
+    H5P__facc_reg_prop,        /* Default property registration routine */
+
+    NULL,            /* Class creation callback      */
+    NULL,                /* Class creation callback info */
+    NULL,            /* Class copy callback          */
+    NULL,                /* Class copy callback info     */
+    NULL,            /* Class close callback         */
+    NULL                 /* Class close callback info    */
 }};
 
 
@@ -395,149 +395,149 @@ H5P__facc_reg_prop(H5P_genclass_t *pclass)
     FUNC_ENTER_STATIC
 
     /* Register the initial metadata cache resize configuration */
-    if(H5P_register_real(pclass, H5F_ACS_META_CACHE_INIT_CONFIG_NAME, H5F_ACS_META_CACHE_INIT_CONFIG_SIZE, &H5F_def_mdc_initCacheCfg_g, 
-            NULL, NULL, NULL, H5F_ACS_META_CACHE_INIT_CONFIG_ENC, H5F_ACS_META_CACHE_INIT_CONFIG_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_META_CACHE_INIT_CONFIG_NAME, H5F_ACS_META_CACHE_INIT_CONFIG_SIZE, &H5F_def_mdc_initCacheCfg_g,
+            NULL, NULL, NULL, H5F_ACS_META_CACHE_INIT_CONFIG_ENC, H5F_ACS_META_CACHE_INIT_CONFIG_DEC,
             NULL, NULL, H5F_ACS_META_CACHE_INIT_CONFIG_CMP, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the size of raw data chunk cache (elements) */
-    if(H5P_register_real(pclass, H5F_ACS_DATA_CACHE_NUM_SLOTS_NAME, H5F_ACS_DATA_CACHE_NUM_SLOTS_SIZE, &H5F_def_rdcc_nslots_g, 
-            NULL, NULL, NULL, H5F_ACS_DATA_CACHE_NUM_SLOTS_ENC, H5F_ACS_DATA_CACHE_NUM_SLOTS_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_DATA_CACHE_NUM_SLOTS_NAME, H5F_ACS_DATA_CACHE_NUM_SLOTS_SIZE, &H5F_def_rdcc_nslots_g,
+            NULL, NULL, NULL, H5F_ACS_DATA_CACHE_NUM_SLOTS_ENC, H5F_ACS_DATA_CACHE_NUM_SLOTS_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the size of raw data chunk cache(bytes) */
-    if(H5P_register_real(pclass, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, H5F_ACS_DATA_CACHE_BYTE_SIZE_SIZE, &H5F_def_rdcc_nbytes_g, 
-            NULL, NULL, NULL, H5F_ACS_DATA_CACHE_BYTE_SIZE_ENC, H5F_ACS_DATA_CACHE_BYTE_SIZE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, H5F_ACS_DATA_CACHE_BYTE_SIZE_SIZE, &H5F_def_rdcc_nbytes_g,
+            NULL, NULL, NULL, H5F_ACS_DATA_CACHE_BYTE_SIZE_ENC, H5F_ACS_DATA_CACHE_BYTE_SIZE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the preemption for reading chunks */
-    if(H5P_register_real(pclass, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, H5F_ACS_PREEMPT_READ_CHUNKS_SIZE, &H5F_def_rdcc_w0_g, 
-            NULL, NULL, NULL, H5F_ACS_PREEMPT_READ_CHUNKS_ENC, H5F_ACS_PREEMPT_READ_CHUNKS_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, H5F_ACS_PREEMPT_READ_CHUNKS_SIZE, &H5F_def_rdcc_w0_g,
+            NULL, NULL, NULL, H5F_ACS_PREEMPT_READ_CHUNKS_ENC, H5F_ACS_PREEMPT_READ_CHUNKS_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the threshold for alignment */
-    if(H5P_register_real(pclass, H5F_ACS_ALIGN_THRHD_NAME, H5F_ACS_ALIGN_THRHD_SIZE, &H5F_def_threshold_g, 
-            NULL, NULL, NULL, H5F_ACS_ALIGN_THRHD_ENC, H5F_ACS_ALIGN_THRHD_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_ALIGN_THRHD_NAME, H5F_ACS_ALIGN_THRHD_SIZE, &H5F_def_threshold_g,
+            NULL, NULL, NULL, H5F_ACS_ALIGN_THRHD_ENC, H5F_ACS_ALIGN_THRHD_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the alignment */
-    if(H5P_register_real(pclass, H5F_ACS_ALIGN_NAME, H5F_ACS_ALIGN_SIZE, &H5F_def_alignment_g, 
-            NULL, NULL, NULL, H5F_ACS_ALIGN_ENC, H5F_ACS_ALIGN_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_ALIGN_NAME, H5F_ACS_ALIGN_SIZE, &H5F_def_alignment_g,
+            NULL, NULL, NULL, H5F_ACS_ALIGN_ENC, H5F_ACS_ALIGN_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the minimum metadata allocation block size */
-    if(H5P_register_real(pclass, H5F_ACS_META_BLOCK_SIZE_NAME, H5F_ACS_META_BLOCK_SIZE_SIZE, &H5F_def_meta_block_size_g, 
-            NULL, NULL, NULL, H5F_ACS_META_BLOCK_SIZE_ENC, H5F_ACS_META_BLOCK_SIZE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_META_BLOCK_SIZE_NAME, H5F_ACS_META_BLOCK_SIZE_SIZE, &H5F_def_meta_block_size_g,
+            NULL, NULL, NULL, H5F_ACS_META_BLOCK_SIZE_ENC, H5F_ACS_META_BLOCK_SIZE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the maximum sieve buffer size */
-    if(H5P_register_real(pclass, H5F_ACS_SIEVE_BUF_SIZE_NAME, H5F_ACS_SIEVE_BUF_SIZE_SIZE, &H5F_def_sieve_buf_size_g, 
-            NULL, NULL, NULL, H5F_ACS_SIEVE_BUF_SIZE_ENC, H5F_ACS_SIEVE_BUF_SIZE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_SIEVE_BUF_SIZE_NAME, H5F_ACS_SIEVE_BUF_SIZE_SIZE, &H5F_def_sieve_buf_size_g,
+            NULL, NULL, NULL, H5F_ACS_SIEVE_BUF_SIZE_ENC, H5F_ACS_SIEVE_BUF_SIZE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the minimum "small data" allocation block size */
-    if(H5P_register_real(pclass, H5F_ACS_SDATA_BLOCK_SIZE_NAME, H5F_ACS_SDATA_BLOCK_SIZE_SIZE, &H5F_def_sdata_block_size_g, 
-            NULL, NULL, NULL, H5F_ACS_SDATA_BLOCK_SIZE_ENC, H5F_ACS_SDATA_BLOCK_SIZE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_SDATA_BLOCK_SIZE_NAME, H5F_ACS_SDATA_BLOCK_SIZE_SIZE, &H5F_def_sdata_block_size_g,
+            NULL, NULL, NULL, H5F_ACS_SDATA_BLOCK_SIZE_ENC, H5F_ACS_SDATA_BLOCK_SIZE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the garbage collection reference */
-    if(H5P_register_real(pclass, H5F_ACS_GARBG_COLCT_REF_NAME, H5F_ACS_GARBG_COLCT_REF_SIZE, &H5F_def_gc_ref_g, 
-            NULL, NULL, NULL, H5F_ACS_GARBG_COLCT_REF_ENC, H5F_ACS_GARBG_COLCT_REF_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_GARBG_COLCT_REF_NAME, H5F_ACS_GARBG_COLCT_REF_SIZE, &H5F_def_gc_ref_g,
+            NULL, NULL, NULL, H5F_ACS_GARBG_COLCT_REF_ENC, H5F_ACS_GARBG_COLCT_REF_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the file driver ID & info */
     /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5F_ACS_FILE_DRV_NAME, H5F_ACS_FILE_DRV_SIZE, &def_driver_prop, 
+    if(H5P_register_real(pclass, H5F_ACS_FILE_DRV_NAME, H5F_ACS_FILE_DRV_SIZE, &def_driver_prop,
             H5F_ACS_FILE_DRV_CRT, H5F_ACS_FILE_DRV_SET, H5F_ACS_FILE_DRV_GET, NULL, NULL,
             H5F_ACS_FILE_DRV_DEL, H5F_ACS_FILE_DRV_COPY, H5F_ACS_FILE_DRV_CMP, H5F_ACS_FILE_DRV_CLOSE) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the file close degree */
-    if(H5P_register_real(pclass, H5F_ACS_CLOSE_DEGREE_NAME, H5F_CLOSE_DEGREE_SIZE, &H5F_def_close_degree_g, 
-            NULL, NULL, NULL, H5F_CLOSE_DEGREE_ENC, H5F_CLOSE_DEGREE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_CLOSE_DEGREE_NAME, H5F_CLOSE_DEGREE_SIZE, &H5F_def_close_degree_g,
+            NULL, NULL, NULL, H5F_CLOSE_DEGREE_ENC, H5F_CLOSE_DEGREE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the offset of family driver info */
-    if(H5P_register_real(pclass, H5F_ACS_FAMILY_OFFSET_NAME, H5F_ACS_FAMILY_OFFSET_SIZE, &H5F_def_family_offset_g, 
-            NULL, NULL, NULL, H5F_ACS_FAMILY_OFFSET_ENC, H5F_ACS_FAMILY_OFFSET_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_FAMILY_OFFSET_NAME, H5F_ACS_FAMILY_OFFSET_SIZE, &H5F_def_family_offset_g,
+            NULL, NULL, NULL, H5F_ACS_FAMILY_OFFSET_ENC, H5F_ACS_FAMILY_OFFSET_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the private property of new family file size. It's used by h5repart only. */
     /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5F_ACS_FAMILY_NEWSIZE_NAME, H5F_ACS_FAMILY_NEWSIZE_SIZE, &H5F_def_family_newsize_g, 
+    if(H5P_register_real(pclass, H5F_ACS_FAMILY_NEWSIZE_NAME, H5F_ACS_FAMILY_NEWSIZE_SIZE, &H5F_def_family_newsize_g,
             NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the private property of whether convert family to sec2 driver. It's used by h5repart only. */
     /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5F_ACS_FAMILY_TO_SEC2_NAME, H5F_ACS_FAMILY_TO_SEC2_SIZE, &H5F_def_family_to_sec2_g, 
+    if(H5P_register_real(pclass, H5F_ACS_FAMILY_TO_SEC2_NAME, H5F_ACS_FAMILY_TO_SEC2_SIZE, &H5F_def_family_to_sec2_g,
             NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the data type of multi driver info */
-    if(H5P_register_real(pclass, H5F_ACS_MULTI_TYPE_NAME, H5F_ACS_MULTI_TYPE_SIZE, &H5F_def_mem_type_g, 
-            NULL, NULL, NULL, H5F_ACS_MULTI_TYPE_ENC, H5F_ACS_MULTI_TYPE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_MULTI_TYPE_NAME, H5F_ACS_MULTI_TYPE_SIZE, &H5F_def_mem_type_g,
+            NULL, NULL, NULL, H5F_ACS_MULTI_TYPE_ENC, H5F_ACS_MULTI_TYPE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the 'use the latest version of the format' flag */
-    if(H5P_register_real(pclass, H5F_ACS_LATEST_FORMAT_NAME, H5F_ACS_LATEST_FORMAT_SIZE, &H5F_def_latest_format_g, 
-            NULL, NULL, NULL, H5F_ACS_LATEST_FORMAT_ENC, H5F_ACS_LATEST_FORMAT_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_LATEST_FORMAT_NAME, H5F_ACS_LATEST_FORMAT_SIZE, &H5F_def_latest_format_g,
+            NULL, NULL, NULL, H5F_ACS_LATEST_FORMAT_ENC, H5F_ACS_LATEST_FORMAT_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the private property of whether to retrieve the file descriptor from the core VFD */
     /* (used internally to the library only) */
     /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5F_ACS_WANT_POSIX_FD_NAME, H5F_ACS_WANT_POSIX_FD_SIZE, &H5F_def_want_posix_fd_g, 
+    if(H5P_register_real(pclass, H5F_ACS_WANT_POSIX_FD_NAME, H5F_ACS_WANT_POSIX_FD_SIZE, &H5F_def_want_posix_fd_g,
             NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the external file cache size */
-    if(H5P_register_real(pclass, H5F_ACS_EFC_SIZE_NAME, H5F_ACS_EFC_SIZE_SIZE, &H5F_def_efc_size_g, 
-            NULL, NULL, NULL, H5F_ACS_EFC_SIZE_ENC, H5F_ACS_EFC_SIZE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_EFC_SIZE_NAME, H5F_ACS_EFC_SIZE_SIZE, &H5F_def_efc_size_g,
+            NULL, NULL, NULL, H5F_ACS_EFC_SIZE_ENC, H5F_ACS_EFC_SIZE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the initial file image info */
     /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5F_ACS_FILE_IMAGE_INFO_NAME, H5F_ACS_FILE_IMAGE_INFO_SIZE, &H5F_def_file_image_info_g, 
+    if(H5P_register_real(pclass, H5F_ACS_FILE_IMAGE_INFO_NAME, H5F_ACS_FILE_IMAGE_INFO_SIZE, &H5F_def_file_image_info_g,
             NULL, H5F_ACS_FILE_IMAGE_INFO_SET, H5F_ACS_FILE_IMAGE_INFO_GET, NULL, NULL,
             H5F_ACS_FILE_IMAGE_INFO_DEL, H5F_ACS_FILE_IMAGE_INFO_COPY, H5F_ACS_FILE_IMAGE_INFO_CMP, H5F_ACS_FILE_IMAGE_INFO_CLOSE) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the core VFD backing store write tracking flag */
-    if(H5P_register_real(pclass, H5F_ACS_CORE_WRITE_TRACKING_FLAG_NAME, H5F_ACS_CORE_WRITE_TRACKING_FLAG_SIZE, &H5F_def_core_write_tracking_flag_g, 
-            NULL, NULL, NULL, H5F_ACS_CORE_WRITE_TRACKING_FLAG_ENC, H5F_ACS_CORE_WRITE_TRACKING_FLAG_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_CORE_WRITE_TRACKING_FLAG_NAME, H5F_ACS_CORE_WRITE_TRACKING_FLAG_SIZE, &H5F_def_core_write_tracking_flag_g,
+            NULL, NULL, NULL, H5F_ACS_CORE_WRITE_TRACKING_FLAG_ENC, H5F_ACS_CORE_WRITE_TRACKING_FLAG_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the size of the core VFD backing store page size */
-    if(H5P_register_real(pclass, H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_NAME, H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_SIZE, &H5F_def_core_write_tracking_page_size_g, 
-            NULL, NULL, NULL, H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_ENC, H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_NAME, H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_SIZE, &H5F_def_core_write_tracking_page_size_g,
+            NULL, NULL, NULL, H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_ENC, H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the # of read attempts */
-    if(H5P_register_real(pclass, H5F_ACS_METADATA_READ_ATTEMPTS_NAME, H5F_ACS_METADATA_READ_ATTEMPTS_SIZE, &H5F_def_metadata_read_attempts_g, 
-            NULL, NULL, NULL, H5F_ACS_METADATA_READ_ATTEMPTS_ENC, H5F_ACS_METADATA_READ_ATTEMPTS_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_METADATA_READ_ATTEMPTS_NAME, H5F_ACS_METADATA_READ_ATTEMPTS_SIZE, &H5F_def_metadata_read_attempts_g,
+            NULL, NULL, NULL, H5F_ACS_METADATA_READ_ATTEMPTS_ENC, H5F_ACS_METADATA_READ_ATTEMPTS_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register object flush callback */
     /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5F_ACS_OBJECT_FLUSH_CB_NAME, H5F_ACS_OBJECT_FLUSH_CB_SIZE, &H5F_def_object_flush_cb_g, 
+    if(H5P_register_real(pclass, H5F_ACS_OBJECT_FLUSH_CB_NAME, H5F_ACS_OBJECT_FLUSH_CB_SIZE, &H5F_def_object_flush_cb_g,
             NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
@@ -563,44 +563,44 @@ H5P__facc_reg_prop(H5P_genclass_t *pclass)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the evict on close flag */
-    if(H5P_register_real(pclass, H5F_ACS_EVICT_ON_CLOSE_FLAG_NAME, H5F_ACS_EVICT_ON_CLOSE_FLAG_SIZE, &H5F_def_evict_on_close_flag_g, 
-            NULL, NULL, NULL, H5F_ACS_EVICT_ON_CLOSE_FLAG_ENC, H5F_ACS_EVICT_ON_CLOSE_FLAG_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_EVICT_ON_CLOSE_FLAG_NAME, H5F_ACS_EVICT_ON_CLOSE_FLAG_SIZE, &H5F_def_evict_on_close_flag_g,
+            NULL, NULL, NULL, H5F_ACS_EVICT_ON_CLOSE_FLAG_ENC, H5F_ACS_EVICT_ON_CLOSE_FLAG_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
 #ifdef H5_HAVE_PARALLEL
     /* Register the metadata collective read flag */
-    if(H5P_register_real(pclass, H5_COLL_MD_READ_FLAG_NAME, H5F_ACS_COLL_MD_READ_FLAG_SIZE, &H5F_def_coll_md_read_flag_g, 
-            NULL, NULL, NULL, H5F_ACS_COLL_MD_READ_FLAG_ENC, H5F_ACS_COLL_MD_READ_FLAG_DEC, 
+    if(H5P_register_real(pclass, H5_COLL_MD_READ_FLAG_NAME, H5F_ACS_COLL_MD_READ_FLAG_SIZE, &H5F_def_coll_md_read_flag_g,
+            NULL, NULL, NULL, H5F_ACS_COLL_MD_READ_FLAG_ENC, H5F_ACS_COLL_MD_READ_FLAG_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the metadata collective write flag */
-    if(H5P_register_real(pclass, H5F_ACS_COLL_MD_WRITE_FLAG_NAME, H5F_ACS_COLL_MD_WRITE_FLAG_SIZE, &H5F_def_coll_md_write_flag_g, 
-            NULL, NULL, NULL, H5F_ACS_COLL_MD_WRITE_FLAG_ENC, H5F_ACS_COLL_MD_WRITE_FLAG_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_COLL_MD_WRITE_FLAG_NAME, H5F_ACS_COLL_MD_WRITE_FLAG_SIZE, &H5F_def_coll_md_write_flag_g,
+            NULL, NULL, NULL, H5F_ACS_COLL_MD_WRITE_FLAG_ENC, H5F_ACS_COLL_MD_WRITE_FLAG_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 #endif /* H5_HAVE_PARALLEL */
 
     /* Register the initial metadata cache image configuration */
-    if(H5P_register_real(pclass, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_NAME, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_SIZE, &H5F_def_mdc_initCacheImageCfg_g, 
-            NULL, NULL, NULL, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_ENC, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_NAME, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_SIZE, &H5F_def_mdc_initCacheImageCfg_g,
+            NULL, NULL, NULL, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_ENC, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_DEC,
             NULL, NULL, H5F_ACS_META_CACHE_INIT_IMAGE_CONFIG_CMP, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
     /* Register the size of the page buffer size */
-    if(H5P_register_real(pclass, H5F_ACS_PAGE_BUFFER_SIZE_NAME, H5F_ACS_PAGE_BUFFER_SIZE_SIZE, &H5F_def_page_buf_size_g, 
-            NULL, NULL, NULL, H5F_ACS_PAGE_BUFFER_SIZE_ENC, H5F_ACS_PAGE_BUFFER_SIZE_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_PAGE_BUFFER_SIZE_NAME, H5F_ACS_PAGE_BUFFER_SIZE_SIZE, &H5F_def_page_buf_size_g,
+            NULL, NULL, NULL, H5F_ACS_PAGE_BUFFER_SIZE_ENC, H5F_ACS_PAGE_BUFFER_SIZE_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
     /* Register the size of the page buffer minimum metadata size */
-    if(H5P_register_real(pclass, H5F_ACS_PAGE_BUFFER_MIN_META_PERC_NAME, H5F_ACS_PAGE_BUFFER_MIN_META_PERC_SIZE, &H5F_def_page_buf_min_meta_perc_g, 
-            NULL, NULL, NULL, H5F_ACS_PAGE_BUFFER_MIN_META_PERC_ENC, H5F_ACS_PAGE_BUFFER_MIN_META_PERC_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_PAGE_BUFFER_MIN_META_PERC_NAME, H5F_ACS_PAGE_BUFFER_MIN_META_PERC_SIZE, &H5F_def_page_buf_min_meta_perc_g,
+            NULL, NULL, NULL, H5F_ACS_PAGE_BUFFER_MIN_META_PERC_ENC, H5F_ACS_PAGE_BUFFER_MIN_META_PERC_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
     /* Register the size of the page buffer minimum raw data size */
-    if(H5P_register_real(pclass, H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_NAME, H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_SIZE, &H5F_def_page_buf_min_raw_perc_g, 
-            NULL, NULL, NULL, H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_ENC, H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_DEC, 
+    if(H5P_register_real(pclass, H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_NAME, H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_SIZE, &H5F_def_page_buf_min_raw_perc_g,
+            NULL, NULL, NULL, H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_ENC, H5F_ACS_PAGE_BUFFER_MIN_RAW_PERC_DEC,
             NULL, NULL, NULL, NULL) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
@@ -610,33 +610,33 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_alignment
+ * Function:    H5Pset_alignment
  *
- * Purpose:	Sets the alignment properties of a file access property list
- *		so that any file object >= THRESHOLD bytes will be aligned on
- *		an address which is a multiple of ALIGNMENT.  The addresses
- *		are relative to the end of the user block; the alignment is
- *		calculated by subtracting the user block size from the
- *		absolute file address and then adjusting the address to be a
- *		multiple of ALIGNMENT.
+ * Purpose:    Sets the alignment properties of a file access property list
+ *        so that any file object >= THRESHOLD bytes will be aligned on
+ *        an address which is a multiple of ALIGNMENT.  The addresses
+ *        are relative to the end of the user block; the alignment is
+ *        calculated by subtracting the user block size from the
+ *        absolute file address and then adjusting the address to be a
+ *        multiple of ALIGNMENT.
  *
- *		Default values for THRESHOLD and ALIGNMENT are one, implying
- *		no alignment.  Generally the default values will result in
- *		the best performance for single-process access to the file.
- *		For MPI-IO and other parallel systems, choose an alignment
- *		which is a multiple of the disk block size.
+ *        Default values for THRESHOLD and ALIGNMENT are one, implying
+ *        no alignment.  Generally the default values will result in
+ *        the best performance for single-process access to the file.
+ *        For MPI-IO and other parallel systems, choose an alignment
+ *        which is a multiple of the disk block size.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Robb Matzke
+ * Programmer:    Robb Matzke
  *              Tuesday, June  9, 1998
  *
  * Modifications:
  *
- *		Raymond Lu
- *		Tuesday, Oct 23, 2001
- *		Changed file access property list mechanism to the new
- *		generic property list.
+ *        Raymond Lu
+ *        Tuesday, Oct 23, 2001
+ *        Changed file access property list mechanism to the new
+ *        generic property list.
  *-------------------------------------------------------------------------
  */
 herr_t
@@ -668,15 +668,15 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_alignment
+ * Function:    H5Pget_alignment
  *
- * Purpose:	Returns the current settings for alignment properties from a
- *		file access property list.  The THRESHOLD and/or ALIGNMENT
- *		pointers may be null pointers.
+ * Purpose:    Returns the current settings for alignment properties from a
+ *        file access property list.  The THRESHOLD and/or ALIGNMENT
+ *        pointers may be null pointers.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Robb Matzke
+ * Programmer:    Robb Matzke
  *              Tuesday, June  9, 1998
  *
  *-------------------------------------------------------------------------
@@ -709,20 +709,20 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5P_set_driver
+ * Function:    H5P_set_driver
  *
- * Purpose:	Set the file driver (DRIVER_ID) for a file access 
- *		property list (PLIST_ID) and supply an optional
- *		struct containing the driver-specific properites
- *		(DRIVER_INFO).  The driver properties will be copied into the
- *		property list and the reference count on the driver will be
- *		incremented, allowing the caller to close the driver ID but
- *		still use the property list.
+ * Purpose:    Set the file driver (DRIVER_ID) for a file access
+ *        property list (PLIST_ID) and supply an optional
+ *        struct containing the driver-specific properites
+ *        (DRIVER_INFO).  The driver properties will be copied into the
+ *        property list and the reference count on the driver will be
+ *        incremented, allowing the caller to close the driver ID but
+ *        still use the property list.
  *
- * Return:	Success:	Non-negative
- *		Failure:	Negative
+ * Return:    Success:    Non-negative
+ *        Failure:    Negative
  *
- * Programmer:	Robb Matzke
+ * Programmer:    Robb Matzke
  *              Tuesday, August  3, 1999
  *
  *-------------------------------------------------------------------------
@@ -757,20 +757,20 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_driver
+ * Function:    H5Pset_driver
  *
- * Purpose:	Set the file driver (DRIVER_ID) for a file access 
- *		property list (PLIST_ID) and supply an optional
- *		struct containing the driver-specific properites
- *		(DRIVER_INFO).  The driver properties will be copied into the
- *		property list and the reference count on the driver will be
- *		incremented, allowing the caller to close the driver ID but
- *		still use the property list.
+ * Purpose:    Set the file driver (DRIVER_ID) for a file access
+ *        property list (PLIST_ID) and supply an optional
+ *        struct containing the driver-specific properites
+ *        (DRIVER_INFO).  The driver properties will be copied into the
+ *        property list and the reference count on the driver will be
+ *        incremented, allowing the caller to close the driver ID but
+ *        still use the property list.
  *
- * Return:	Success:	Non-negative
- *		Failure:	Negative
+ * Return:    Success:    Non-negative
+ *        Failure:    Negative
  *
- * Programmer:	Robb Matzke
+ * Programmer:    Robb Matzke
  *              Tuesday, August  3, 1999
  *
  *-------------------------------------------------------------------------
@@ -800,20 +800,20 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5P_peek_driver
+ * Function:    H5P_peek_driver
  *
- * Purpose:	Return the ID of the low-level file driver.  PLIST_ID should
- *		be a file access property list.
+ * Purpose:    Return the ID of the low-level file driver.  PLIST_ID should
+ *        be a file access property list.
  *
- * Return:	Success:	A low-level driver ID which is the same ID
- *				used when the driver was set for the property
- *				list. The driver ID is only valid as long as
- *				the file driver remains registered.
+ * Return:    Success:    A low-level driver ID which is the same ID
+ *                used when the driver was set for the property
+ *                list. The driver ID is only valid as long as
+ *                the file driver remains registered.
  *
- *		Failure:	Negative
+ *        Failure:    Negative
  *
- * Programmer:	Robb Matzke
- *		Thursday, February 26, 1998
+ * Programmer:    Robb Matzke
+ *        Thursday, February 26, 1998
  *
  *-------------------------------------------------------------------------
  */
@@ -844,22 +844,22 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_driver
+ * Function:    H5Pget_driver
  *
- * Purpose:	Return the ID of the low-level file driver.  PLIST_ID should
- *		be a file access property list.
+ * Purpose:    Return the ID of the low-level file driver.  PLIST_ID should
+ *        be a file access property list.
  *
- * Note:	The ID returned should not be closed.
+ * Note:    The ID returned should not be closed.
  *
- * Return:	Success:	A low-level driver ID which is the same ID
- *				used when the driver was set for the property
- *				list. The driver ID is only valid as long as
- *				the file driver remains registered.
+ * Return:    Success:    A low-level driver ID which is the same ID
+ *                used when the driver was set for the property
+ *                list. The driver ID is only valid as long as
+ *                the file driver remains registered.
  *
- *		Failure:	Negative
+ *        Failure:    Negative
  *
- * Programmer:	Robb Matzke
- *		Thursday, February 26, 1998
+ * Programmer:    Robb Matzke
+ *        Thursday, February 26, 1998
  *
  *-------------------------------------------------------------------------
  */
@@ -867,7 +867,7 @@ hid_t
 H5Pget_driver(hid_t plist_id)
 {
     H5P_genplist_t *plist;      /* Property list pointer */
-    hid_t	ret_value;      /* Return value */
+    hid_t    ret_value;      /* Return value */
 
     FUNC_ENTER_API(FAIL)
     H5TRACE1("i", "i", plist_id);
@@ -885,20 +885,20 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5P_peek_driver_info
+ * Function:    H5P_peek_driver_info
  *
- * Purpose:	Returns a pointer directly to the file driver-specific
- *		information of a file access.
+ * Purpose:    Returns a pointer directly to the file driver-specific
+ *        information of a file access.
  *
- * Return:	Success:	Ptr to *uncopied* driver specific data
- *				structure if any.
+ * Return:    Success:    Ptr to *uncopied* driver specific data
+ *                structure if any.
  *
- *		Failure:	NULL. Null is also returned if the driver has
- *				not registered any driver-specific properties
- *				although no error is pushed on the stack in
- *				this case.
+ *        Failure:    NULL. Null is also returned if the driver has
+ *                not registered any driver-specific properties
+ *                although no error is pushed on the stack in
+ *                this case.
  *
- * Programmer:	Robb Matzke
+ * Programmer:    Robb Matzke
  *              Wednesday, August  4, 1999
  *
  *-------------------------------------------------------------------------
@@ -927,20 +927,20 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_driver_info
+ * Function:    H5Pget_driver_info
  *
- * Purpose:	Returns a pointer directly to the file driver-specific
- *		information of a file access.
+ * Purpose:    Returns a pointer directly to the file driver-specific
+ *        information of a file access.
  *
- * Return:	Success:	Ptr to *uncopied* driver specific data
- *				structure if any.
+ * Return:    Success:    Ptr to *uncopied* driver specific data
+ *                structure if any.
  *
- *		Failure:	NULL. Null is also returned if the driver has
- *				not registered any driver-specific properties
- *				although no error is pushed on the stack in
- *				this case.
+ *        Failure:    NULL. Null is also returned if the driver has
+ *                not registered any driver-specific properties
+ *                although no error is pushed on the stack in
+ *                this case.
  *
- * Programmer:	Robb Matzke
+ * Programmer:    Robb Matzke
  *              Wednesday, August  4, 1999
  *
  *-------------------------------------------------------------------------
@@ -973,7 +973,7 @@ done:
  *
  * Note:        This is an "in-place" copy, since this routine gets called
  *              after the top-level copy has been performed and this routine
- *		finishes the "deep" part of the copy.
+ *        finishes the "deep" part of the copy.
  *
  * Return:      Success:        Non-negative
  *              Failure:        Negative
@@ -1486,30 +1486,30 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_cache
+ * Function:    H5Pset_cache
  *
- * Purpose:	Set the number of objects in the meta data cache and the
- *		maximum number of chunks and bytes in the raw data chunk
- *		cache.
+ * Purpose:    Set the number of objects in the meta data cache and the
+ *        maximum number of chunks and bytes in the raw data chunk
+ *        cache.
  *
- * 		The RDCC_W0 value should be between 0 and 1 inclusive and
- *		indicates how much chunks that have been fully read or fully
- *		written are favored for preemption.  A value of zero means
- *		fully read or written chunks are treated no differently than
- *		other chunks (the preemption is strictly LRU) while a value
- *		of one means fully read chunks are always preempted before
- *		other chunks.
+ *         The RDCC_W0 value should be between 0 and 1 inclusive and
+ *        indicates how much chunks that have been fully read or fully
+ *        written are favored for preemption.  A value of zero means
+ *        fully read or written chunks are treated no differently than
+ *        other chunks (the preemption is strictly LRU) while a value
+ *        of one means fully read chunks are always preempted before
+ *        other chunks.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Robb Matzke
+ * Programmer:    Robb Matzke
  *              Tuesday, May 19, 1998
  *
  *-------------------------------------------------------------------------
  */
 herr_t
 H5Pset_cache(hid_t plist_id, int H5_ATTR_UNUSED mdc_nelmts,
-	     size_t rdcc_nslots, size_t rdcc_nbytes, double rdcc_w0)
+        size_t rdcc_nslots, size_t rdcc_nbytes, double rdcc_w0)
 {
     H5P_genplist_t *plist;      /* Property list pointer */
     herr_t ret_value = SUCCEED;   /* return value */
@@ -1540,24 +1540,24 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_cache
+ * Function:    H5Pget_cache
  *
- * Purpose:	Retrieves the maximum possible number of elements in the meta
- *		data cache and the maximum possible number of elements and
- *		bytes and the RDCC_W0 value in the raw data chunk cache.  Any
- *		(or all) arguments may be null pointers in which case the
- *		corresponding datum is not returned.
+ * Purpose:    Retrieves the maximum possible number of elements in the meta
+ *        data cache and the maximum possible number of elements and
+ *        bytes and the RDCC_W0 value in the raw data chunk cache.  Any
+ *        (or all) arguments may be null pointers in which case the
+ *        corresponding datum is not returned.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Robb Matzke
+ * Programmer:    Robb Matzke
  *              Tuesday, May 19, 1998
  *
  *-------------------------------------------------------------------------
  */
 herr_t
 H5Pget_cache(hid_t plist_id, int *mdc_nelmts,
-	     size_t *rdcc_nslots, size_t *rdcc_nbytes, double *rdcc_w0)
+        size_t *rdcc_nslots, size_t *rdcc_nbytes, double *rdcc_w0)
 {
     H5P_genplist_t *plist;      /* Property list pointer */
     herr_t ret_value = SUCCEED;   /* return value */
@@ -1592,14 +1592,14 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_mdc_image_config
+ * Function:    H5Pset_mdc_image_config
  *
- * Purpose:	Set the initial metadata cache image configuration in the
- *		target FAPL.
+ * Purpose:    Set the initial metadata cache image configuration in the
+ *        target FAPL.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	J. Mainzer
+ * Programmer:    J. Mainzer
  *              Thursday, June 25, 2015
  *
  *-------------------------------------------------------------------------
@@ -1636,18 +1636,18 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_mdc_image_config
+ * Function:    H5Pget_mdc_image_config
  *
- * Purpose:	Retrieve the metadata cache initial image configuration
- *		from the target FAPL.
+ * Purpose:    Retrieve the metadata cache initial image configuration
+ *        from the target FAPL.
  *
- *		Observe that the function will fail if config_ptr is
- *		NULL, or if config_ptr->version specifies an unknown
- *		version of H5AC_cache_image_config_t.
+ *        Observe that the function will fail if config_ptr is
+ *        NULL, or if config_ptr->version specifies an unknown
+ *        version of H5AC_cache_image_config_t.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	J. Mainzer
+ * Programmer:    J. Mainzer
  *              Friday, June 26, 2015
  *
  *-------------------------------------------------------------------------
@@ -1687,14 +1687,14 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_mdc_config
+ * Function:    H5Pset_mdc_config
  *
- * Purpose:	Set the initial metadata cache resize configuration in the
- *		target FAPL.
+ * Purpose:    Set the initial metadata cache resize configuration in the
+ *        target FAPL.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	J. Mainzer
+ * Programmer:    J. Mainzer
  *              Thursday, April 7, 2005
  *
  *-------------------------------------------------------------------------
@@ -1731,18 +1731,18 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_mdc_config
+ * Function:    H5Pget_mdc_config
  *
- * Purpose:	Retrieve the metadata cache initial resize configuration
- *		from the target FAPL.
+ * Purpose:    Retrieve the metadata cache initial resize configuration
+ *        from the target FAPL.
  *
- *		Observe that the function will fail if config_ptr is
- *		NULL, or if config_ptr->version specifies an unknown
- *		version of H5AC_cache_config_t.
+ *        Observe that the function will fail if config_ptr is
+ *        NULL, or if config_ptr->version specifies an unknown
+ *        version of H5AC_cache_config_t.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	J. Mainzer
+ * Programmer:    J. Mainzer
  *              Thursday, April 7, 2005
  *
  *-------------------------------------------------------------------------
@@ -1782,33 +1782,33 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_gc_references
+ * Function:    H5Pset_gc_references
  *
- * Purpose:	Sets the flag for garbage collecting references for the file.
- *		Dataset region references (and other reference types
- *		probably) use space in the file heap.  If garbage collection
- *		is on and the user passes in an uninitialized value in a
- *		reference structure, the heap might get corrupted.  When
- *		garbage collection is off however and the user re-uses a
- *		reference, the previous heap block will be orphaned and not
- *		returned to the free heap space.  When garbage collection is
- *		on, the user must initialize the reference structures to 0 or
- *		risk heap corruption.
+ * Purpose:    Sets the flag for garbage collecting references for the file.
+ *        Dataset region references (and other reference types
+ *        probably) use space in the file heap.  If garbage collection
+ *        is on and the user passes in an uninitialized value in a
+ *        reference structure, the heap might get corrupted.  When
+ *        garbage collection is off however and the user re-uses a
+ *        reference, the previous heap block will be orphaned and not
+ *        returned to the free heap space.  When garbage collection is
+ *        on, the user must initialize the reference structures to 0 or
+ *        risk heap corruption.
  *
- *		Default value for garbage collecting references is off, just
- *		to be on the safe side.
+ *        Default value for garbage collecting references is off, just
+ *        to be on the safe side.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
- *		June, 1999
+ * Programmer:    Quincey Koziol
+ *        June, 1999
  *
  * Modifications:
  *
- *		Raymond Lu
- * 		Tuesday, Oct 23, 2001
- *		Changed the file access list to the new generic property
- *		list.
+ *        Raymond Lu
+ *         Tuesday, Oct 23, 2001
+ *        Changed the file access list to the new generic property
+ *        list.
  *
  *-------------------------------------------------------------------------
  */
@@ -1835,22 +1835,22 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_gc_references
+ * Function:    H5Pget_gc_references
  *
- * Purpose:	Returns the current setting for the garbage collection
- *		references property from a file access property list.
+ * Purpose:    Returns the current setting for the garbage collection
+ *        references property from a file access property list.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * Programmer:    Quincey Koziol
  *              June, 1999
  *
  * Modifications:
  *
- *		Raymond Lu
- *		Tuesday, Oct 23, 2001
- *		Changed the file access list to the new generic property
- *		list.
+ *        Raymond Lu
+ *        Tuesday, Oct 23, 2001
+ *        Changed the file access list to the new generic property
+ *        list.
  *
  *-------------------------------------------------------------------------
  */
@@ -1949,31 +1949,31 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_meta_block_size
+ * Function:    H5Pset_meta_block_size
  *
- * Purpose:	Sets the minimum size of metadata block allocations when
+ * 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
+ *        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
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * 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.
+ *        Raymond Lu
+ *        Tuesday, Oct 23, 2001
+ *        Changed the file access list to the new generic property
+ *        list.
  *
  *-------------------------------------------------------------------------
  */
@@ -2000,22 +2000,22 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_meta_block_size
+ * Function:    H5Pget_meta_block_size
  *
- * Purpose:	Returns the current settings for the metadata block allocation
+ * 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
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * 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.
+ *        Raymond Lu
+ *         Tuesday, Oct 23, 2001
+ *        Changed the file access list to the new generic property
+ *        list.
  *
  *-------------------------------------------------------------------------
  */
@@ -2044,31 +2044,31 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_sieve_buf_size
+ * Function:    H5Pset_sieve_buf_size
  *
- * Purpose:	Sets the maximum size of the data seive buffer used for file
+ * Purpose:    Sets the maximum size of the data seive buffer used for file
  *      drivers which are capable of using data sieving.  The data sieve
  *      buffer is used when performing I/O on datasets in the file.  Using a
  *      buffer which is large anough to hold several pieces of the dataset
  *      being read in for hyperslab selections boosts performance by quite a
  *      bit.
  *
- *		The default value is set to 64KB, indicating that file I/O for raw data
+ *        The default value is set to 64KB, indicating that file I/O for raw data
  *      reads and writes will occur in at least 64KB blocks.
  *      Setting the value to 0 with this API function will turn off the
  *      data sieving, even if the VFL driver attempts to use that strategy.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * Programmer:    Quincey Koziol
  *              Thursday, September 21, 2000
  *
  * Modifications:
  *
- *		Raymond Lu
- * 		Tuesday, Oct 23, 2001
- *		Changed the file access list to the new generic property
- *		list.
+ *        Raymond Lu
+ *         Tuesday, Oct 23, 2001
+ *        Changed the file access list to the new generic property
+ *        list.
  *
  *-------------------------------------------------------------------------
  */
@@ -2095,22 +2095,22 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_sieve_buf_size
+ * Function:    H5Pget_sieve_buf_size
  *
- * Purpose:	Returns the current settings for the data sieve buffer size
+ * Purpose:    Returns the current settings for the data sieve buffer size
  *      property from a file access property list.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * Programmer:    Quincey Koziol
  *              Thursday, September 21, 2000
  *
  * Modifications:
  *
- *		Raymond Lu
- * 		Tuesday, Oct 23, 2001
- *		Changed the file access list to the new generic property
- *		list.
+ *        Raymond Lu
+ *         Tuesday, Oct 23, 2001
+ *        Changed the file access list to the new generic property
+ *        list.
  *
  *-------------------------------------------------------------------------
  */
@@ -2138,23 +2138,23 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_small_data_block_size
+ * Function:    H5Pset_small_data_block_size
  *
- * Purpose:	Sets the minimum size of "small" raw data block allocations
+ * Purpose:    Sets the minimum size of "small" raw data block allocations
  *      when the H5FD_FEAT_AGGREGATE_SMALLDATA is set by a VFL driver.
  *      Each "small" raw data block is allocated to be this size and then
  *      pieces of raw data which are small enough to fit are sub-allocated from
  *      this block.
  *
- *	The default value is set to 2048 (bytes), indicating that raw data
+ *    The default value is set to 2048 (bytes), indicating that raw data
  *      smaller than this value 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 "small" raw data aggregation, even if the
  *      VFL driver attempts to use that strategy.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * Programmer:    Quincey Koziol
  *              Wednesday, June 5, 2002
  *
  * Modifications:
@@ -2184,14 +2184,14 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_small_data_block_size
+ * Function:    H5Pget_small_data_block_size
  *
- * Purpose:	Returns the current settings for the "small" raw data block
+ * Purpose:    Returns the current settings for the "small" raw data block
  *      allocation property from a file access property list.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * Programmer:    Quincey Koziol
  *              Wednesday, June 5, 2002
  *
  * Modifications:
@@ -2223,9 +2223,9 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_libver_bounds
+ * Function:    H5Pset_libver_bounds
  *
- * Purpose:	Indicates which versions of the file format the library should
+ * Purpose:    Indicates which versions of the file format the library should
  *      use when creating objects.  LOW is the earliest version of the HDF5
  *      library that is guaranteed to be able to access the objects created
  *      (the format of some objects in an HDF5 file may not have changed between
@@ -2301,9 +2301,9 @@ done:
  *      releases and then map down to the previous actual library release which
  *      had a format change.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * Programmer:    Quincey Koziol
  *              Sunday, December 30, 2007
  *
  *-------------------------------------------------------------------------
@@ -2341,14 +2341,14 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_libver_bounds
+ * Function:    H5Pget_libver_bounds
  *
- * Purpose:	Returns the current settings for the library version format bounds
+ * Purpose:    Returns the current settings for the library version format bounds
  *      from a file access property list.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Quincey Koziol
+ * Programmer:    Quincey Koziol
  *              Thursday, January 3, 2008
  *
  *-------------------------------------------------------------------------
@@ -2464,9 +2464,9 @@ done:
 /*-------------------------------------------------------------------------
  * Function: H5Pset_file_image
  *
- * Purpose:     Sets the initial file image. Some file drivers can initialize 
- *              the starting data in a file from a buffer. 
- *              
+ * Purpose:     Sets the initial file image. Some file drivers can initialize
+ *              the starting data in a file from a buffer.
+ *
  * Return:      Non-negative on success/Negative on failure
  *
  * Programmer:  Jacob Gruber
@@ -2480,22 +2480,22 @@ H5Pset_file_image(hid_t fapl_id, void *buf_ptr, size_t buf_len)
     H5P_genplist_t *fapl;               /* Property list pointer */
     H5FD_file_image_info_t image_info;  /* File image info */
     herr_t ret_value = SUCCEED;         /* Return value */
-    
+
     FUNC_ENTER_API(FAIL)
     H5TRACE3("e", "i*xz", fapl_id, buf_ptr, buf_len);
 
     /* validate parameters */
     if(!(((buf_ptr == NULL) && (buf_len == 0)) || ((buf_ptr != NULL) && (buf_len > 0))))
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "inconsistant buf_ptr and buf_len")
-   
+
     /* Get the plist structure */
     if(NULL == (fapl = H5P_object_verify(fapl_id, H5P_FILE_ACCESS)))
         HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")
-        
+
     /* Get old image info */
     if(H5P_peek(fapl, H5F_ACS_FILE_IMAGE_INFO_NAME, &image_info) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get old file image pointer")
-        
+
     /* Release previous buffer, if it exists */
     if(image_info.buffer != NULL) {
         if(image_info.callbacks.image_free) {
@@ -2504,8 +2504,8 @@ H5Pset_file_image(hid_t fapl_id, void *buf_ptr, size_t buf_len)
         } /* end if */
         else
             H5MM_xfree(image_info.buffer);
-    } /* end if */  
-    
+    } /* end if */
+
     /* Update struct */
     if(buf_ptr) {
         /* Allocate memory */
@@ -2517,15 +2517,15 @@ H5Pset_file_image(hid_t fapl_id, void *buf_ptr, size_t buf_len)
          else
             if(NULL == (image_info.buffer = H5MM_malloc(buf_len)))
                 HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to allocate memory block")
-    
+
         /* Copy data */
         if(image_info.callbacks.image_memcpy) {
-            if(image_info.buffer != image_info.callbacks.image_memcpy(image_info.buffer, 
-                   buf_ptr, buf_len, H5FD_FILE_IMAGE_OP_PROPERTY_LIST_SET, 
+            if(image_info.buffer != image_info.callbacks.image_memcpy(image_info.buffer,
+                   buf_ptr, buf_len, H5FD_FILE_IMAGE_OP_PROPERTY_LIST_SET,
                    image_info.callbacks.udata))
-	        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTCOPY, FAIL, "image_memcpy callback failed")
+            HGOTO_ERROR(H5E_RESOURCE, H5E_CANTCOPY, FAIL, "image_memcpy callback failed")
         } /* end if */
-	else
+    else
             HDmemcpy(image_info.buffer, buf_ptr, buf_len);
     } /* end if */
     else
@@ -2545,24 +2545,24 @@ done:
 /*-------------------------------------------------------------------------
  * Function: H5Pget_file_image
  *
- * Purpose:     If the file image exists and buf_ptr_ptr is not NULL, 
- *		allocate a buffer of the correct size, copy the image into 
- *		the new buffer, and return the buffer to the caller in 
- *		*buf_ptr_ptr.  Do this using the file image callbacks
- *		if defined.  
+ * Purpose:     If the file image exists and buf_ptr_ptr is not NULL,
+ *        allocate a buffer of the correct size, copy the image into
+ *        the new buffer, and return the buffer to the caller in
+ *        *buf_ptr_ptr.  Do this using the file image callbacks
+ *        if defined.
  *
- *		NB: It is the responsibility of the caller to free the 
- *		buffer whose address is returned in *buf_ptr_ptr.  Do
- *		this using free if the file image callbacks are not 
- *		defined, or with whatever method is appropriate if 
- *		the callbacks are defined.
+ *        NB: It is the responsibility of the caller to free the
+ *        buffer whose address is returned in *buf_ptr_ptr.  Do
+ *        this using free if the file image callbacks are not
+ *        defined, or with whatever method is appropriate if
+ *        the callbacks are defined.
  *
- *              If buf_ptr_ptr is not NULL, and no image exists, set 
- *		*buf_ptr_ptr to NULL.
+ *              If buf_ptr_ptr is not NULL, and no image exists, set
+ *        *buf_ptr_ptr to NULL.
  *
- *		If buf_len_ptr is not NULL, set *buf_len_ptr equal
- *		to the length of the file image if it exists, and 
- *		to 0 if it does not.
+ *        If buf_len_ptr is not NULL, set *buf_len_ptr equal
+ *        to the length of the file image if it exists, and
+ *        to 0 if it does not.
  *
  * Return:      Non-negative on success/Negative on failure
  *
@@ -2590,7 +2590,7 @@ H5Pget_file_image(hid_t fapl_id, void **buf_ptr_ptr, size_t *buf_len_ptr)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get file image info")
 
     /* verify file image field consistancy */
-    HDassert(((image_info.buffer != NULL) && (image_info.size > 0)) || 
+    HDassert(((image_info.buffer != NULL) && (image_info.size > 0)) ||
              ((image_info.buffer == NULL) && (image_info.size == 0)));
 
     /* Set output size */
@@ -2611,15 +2611,15 @@ H5Pget_file_image(hid_t fapl_id, void **buf_ptr_ptr, size_t *buf_len_ptr)
             else
                 if(NULL == (copy_ptr = H5MM_malloc(image_info.size)))
                     HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to allocate copy")
-    
+
             /* Copy data */
             if(image_info.callbacks.image_memcpy) {
                 if(copy_ptr != image_info.callbacks.image_memcpy(copy_ptr, image_info.buffer,
-                        image_info.size, H5FD_FILE_IMAGE_OP_PROPERTY_LIST_GET, 
+                        image_info.size, H5FD_FILE_IMAGE_OP_PROPERTY_LIST_GET,
                         image_info.callbacks.udata))
                     HGOTO_ERROR(H5E_RESOURCE, H5E_CANTCOPY, FAIL, "image_memcpy callback failed")
             } /* end if */
-	    else
+        else
                 HDmemcpy(copy_ptr, image_info.buffer, image_info.size);
         } /* end if */
 
@@ -2636,7 +2636,7 @@ done:
  *
  * Purpose:     Sets the callbacks for file images. Some file drivers allow
  *              the use of user-defined callbacks for allocating, freeing and
- *              copying the drivers internal buffer, potentially allowing a 
+ *              copying the drivers internal buffer, potentially allowing a
  *              clever user to do optimizations such as avoiding large mallocs
  *              and memcpys or to perform detailed logging.
  *
@@ -2666,7 +2666,7 @@ H5Pset_file_image_callbacks(hid_t fapl_id, H5FD_file_image_callbacks_t *callback
         HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get old file image info")
 
     /* verify file image field consistancy */
-    HDassert(((info.buffer != NULL) && (info.size > 0)) || 
+    HDassert(((info.buffer != NULL) && (info.size > 0)) ||
              ((info.buffer == NULL) && (info.size == 0)));
 
     /* Make sure a file image hasn't already been set */
@@ -2675,7 +2675,7 @@ H5Pset_file_image_callbacks(hid_t fapl_id, H5FD_file_image_callbacks_t *callback
 
     /* verify that callbacks_ptr is not NULL */
     if(NULL == callbacks_ptr)
-	HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "NULL callbacks_ptr")
+    HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "NULL callbacks_ptr")
 
     /* Make sure udata callbacks are going to be set if udata is going to be set */
     if(callbacks_ptr->udata)
@@ -2686,7 +2686,7 @@ H5Pset_file_image_callbacks(hid_t fapl_id, H5FD_file_image_callbacks_t *callback
     if(info.callbacks.udata != NULL) {
         HDassert(info.callbacks.udata_free);
         if(info.callbacks.udata_free(info.callbacks.udata) < 0)
-	    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "udata_free callback failed")
+        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "udata_free callback failed")
     } /* end if */
 
     /* Update struct */
@@ -2713,7 +2713,7 @@ done:
  *
  * Purpose:     Sets the callbacks for file images. Some file drivers allow
  *              the use of user-defined callbacks for allocating, freeing and
- *              copying the drivers internal buffer, potentially allowing a 
+ *              copying the drivers internal buffer, potentially allowing a
  *              clever user to do optimizations such as avoiding large mallocs
  *
  * Return:      Non-negative on success/Negative on failure
@@ -2742,12 +2742,12 @@ H5Pget_file_image_callbacks(hid_t fapl_id, H5FD_file_image_callbacks_t *callback
         HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get file image info")
 
     /* verify file image field consistancy */
-    HDassert(((info.buffer != NULL) && (info.size > 0)) || 
+    HDassert(((info.buffer != NULL) && (info.size > 0)) ||
              ((info.buffer == NULL) && (info.size == 0)));
 
     /* verify that callbacks_ptr is not NULL */
     if(NULL == callbacks_ptr)
-	HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "NULL callbacks_ptr")
+    HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "NULL callbacks_ptr")
 
     /* Transfer values to parameters */
     *callbacks_ptr = info.callbacks;
@@ -2768,12 +2768,12 @@ done:
  * Function:    H5P__file_image_info_copy
  *
  * Purpose:     Copy file image info. The buffer
- *              and udata may need to be copied, possibly using their 
+ *              and udata may need to be copied, possibly using their
  *              respective callbacks so the default copy won't work.
  *
  * Note:        This is an "in-place" copy, since this routine gets called
  *              after the top-level copy has been performed and this routine
- *		finishes the "deep" part of the copy.
+ *        finishes the "deep" part of the copy.
  *
  * Return:      Success:        Non-negative
  *              Failure:        Negative
@@ -2796,7 +2796,7 @@ H5P__file_image_info_copy(void *value)
         info = (H5FD_file_image_info_t *)value;
 
         /* verify file image field consistancy */
-        HDassert(((info->buffer != NULL) && (info->size > 0)) || 
+        HDassert(((info->buffer != NULL) && (info->size > 0)) ||
                  ((info->buffer == NULL) && (info->size == 0)));
 
         if(info->buffer && info->size > 0) {
@@ -2815,14 +2815,14 @@ H5P__file_image_info_copy(void *value)
                 if(NULL == (info->buffer = H5MM_malloc(info->size)))
                     HGOTO_ERROR(H5E_PLIST, H5E_CANTALLOC, FAIL, "unable to allocate memory block")
             } /* end else */
-            
+
             /* Copy data to new buffer */
             if(info->callbacks.image_memcpy) {
-                if(info->buffer != info->callbacks.image_memcpy(info->buffer, old_buffer, 
-			info->size, H5FD_FILE_IMAGE_OP_PROPERTY_LIST_COPY, info->callbacks.udata))
-		    HGOTO_ERROR(H5E_PLIST, H5E_CANTCOPY, FAIL, "image_memcpy callback failed")
+                if(info->buffer != info->callbacks.image_memcpy(info->buffer, old_buffer,
+            info->size, H5FD_FILE_IMAGE_OP_PROPERTY_LIST_COPY, info->callbacks.udata))
+            HGOTO_ERROR(H5E_PLIST, H5E_CANTCOPY, FAIL, "image_memcpy callback failed")
             } /* end if */
-	    else
+        else
                 HDmemcpy(info->buffer, old_buffer, info->size);
         } /* end if */
 
@@ -2846,8 +2846,8 @@ done:
  * Function:    H5P__file_image_info_free
  *
  * Purpose:     Free file image info.  The buffer and udata may need to be
- *		freed, possibly using their respective callbacks, so the
- *		default free won't work.
+ *        freed, possibly using their respective callbacks, so the
+ *        default free won't work.
  *
  * Return:      Success:        Non-negative
  *              Failure:        Negative
@@ -2868,16 +2868,16 @@ H5P__file_image_info_free(void *value)
         H5FD_file_image_info_t *info;        /* Image info struct */
 
         info = (H5FD_file_image_info_t *)value;
-             
+
         /* Verify file image field consistancy */
-        HDassert(((info->buffer != NULL) && (info->size > 0)) || 
+        HDassert(((info->buffer != NULL) && (info->size > 0)) ||
                  ((info->buffer == NULL) && (info->size == 0)));
 
         /* Free buffer */
-        if(info->buffer != NULL && info->size > 0) { 
+        if(info->buffer != NULL && info->size > 0) {
             if(info->callbacks.image_free) {
                 if((*info->callbacks.image_free)(info->buffer, H5FD_FILE_IMAGE_OP_PROPERTY_LIST_CLOSE, info->callbacks.udata) < 0)
-		    HGOTO_ERROR(H5E_PLIST, H5E_CANTFREE, FAIL, "image_free callback failed")
+            HGOTO_ERROR(H5E_PLIST, H5E_CANTFREE, FAIL, "image_free callback failed")
             } /* end if */
             else
                 H5MM_xfree(info->buffer);
@@ -2903,7 +2903,7 @@ done:
  * Purpose: Compare two cache image configurations.
  *
  * Return: positive if VALUE1 is greater than VALUE2, negative if VALUE2 is
- *		greater than VALUE1 and zero if VALUE1 and VALUE2 are equal.
+ *        greater than VALUE1 and zero if VALUE1 and VALUE2 are equal.
  *
  * Programmer:     John Mainzer
  *                 June 26, 2015
@@ -2944,11 +2944,11 @@ done:
  * Function:       H5P__facc_cache_image_config_enc
  *
  * Purpose:        Callback routine which is called whenever the default
- *                 cache image config property in the file creation 
- *		   property list is encoded.
+ *                 cache image config property in the file creation
+ *           property list is encoded.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     John Mainzer
  *                 June 26, 2015
@@ -2990,11 +2990,11 @@ H5P__facc_cache_image_config_enc(const void *value, void **_pp, size_t *size)
  * Function:       H5P__facc_cache_image_config_dec
  *
  * Purpose:        Callback routine which is called whenever the default
- *                 cache image config property in the file creation property 
- *		   list is  decoded.
+ *                 cache image config property in the file creation property
+ *           list is  decoded.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     John Mainzer
  *                 June 26, 2015
@@ -3109,7 +3109,7 @@ done:
  *
  * Purpose:     Delete callback for the file image info property, called
  *              when the property is deleted from the plist. The buffer
- *              and udata may need to be freed, possibly using their 
+ *              and udata may need to be freed, possibly using their
  *              respective callbacks so the default free won't work.
  *
  * Return:      Non-negative on success/Negative on failure
@@ -3139,7 +3139,7 @@ done:
  * Function:    H5P__facc_file_image_info_copy
  *
  * Purpose:     Copy callback for the file image info property. The buffer
- *              and udata may need to be copied, possibly using their 
+ *              and udata may need to be copied, possibly using their
  *              respective callbacks so the default copy won't work.
  *
  * Return:      Non-negative on success/Negative on failure
@@ -3228,7 +3228,7 @@ done:
  * Function:    H5P__facc_file_image_info_close
  *
  * Purpose:     Close callback for the file image info property. The buffer
- *              and udata may need to be freed, possibly using their 
+ *              and udata may need to be freed, possibly using their
  *              respective callbacks so the standard free won't work.
  *
  * Return:      Non-negative on success/Negative on failure
@@ -3260,7 +3260,7 @@ done:
  * Purpose: Compare two cache configurations.
  *
  * Return: positive if VALUE1 is greater than VALUE2, negative if VALUE2 is
- *		greater than VALUE1 and zero if VALUE1 and VALUE2 are equal.
+ *        greater than VALUE1 and zero if VALUE1 and VALUE2 are equal.
  *
  * Programmer:     Mohamad Chaarawi
  *                 September 24, 2012
@@ -3373,8 +3373,8 @@ done:
  *                 cache config property in the file creation property list is
  *                 encoded.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     Mohamad Chaarawi
  *                 August 09, 2012
@@ -3518,8 +3518,8 @@ H5P__facc_cache_config_enc(const void *value, void **_pp, size_t *size)
  *                 cache config property in the file creation property list is
  *                 decoded.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     Mohamad Chaarawi
  *                 August 09, 2012
@@ -3653,8 +3653,8 @@ done:
  *                 degree property in the file access property list
  *                 is encoded.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     Quincey Koziol
  *                 Wednesday, August 15, 2012
@@ -3691,8 +3691,8 @@ H5P__facc_fclose_degree_enc(const void *value, void **_pp, size_t *size)
  *                 degree property in the file access property list
  *                 is decoded.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     Quincey Koziol
  *                 Wednesday, August 15, 2012
@@ -3726,8 +3726,8 @@ H5P__facc_fclose_degree_dec(const void **_pp, void *_value)
  *                 memory type property in the file access property list
  *                 is encoded.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     Quincey Koziol
  *                 Wednesday, August 15, 2012
@@ -3764,8 +3764,8 @@ H5P__facc_multi_type_enc(const void *value, void **_pp, size_t *size)
  *                 memory type property in the file access property list
  *                 is decoded.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     Quincey Koziol
  *                 Wednesday, August 15, 2012
@@ -3793,12 +3793,12 @@ H5P__facc_multi_type_dec(const void **_pp, void *_value)
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_core_write_tracking
+ * Function:    H5Pset_core_write_tracking
  *
- * Purpose:	Enables/disables core VFD write tracking and page
+ * Purpose:    Enables/disables core VFD write tracking and page
  *              aggregation size.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
  * Programmer:  Dana Robinson
  *              Tuesday, April 8, 2014
@@ -3834,12 +3834,12 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_core_write_tracking
+ * Function:    H5Pget_core_write_tracking
  *
- * Purpose:	Gets information about core VFD write tracking and page
+ * Purpose:    Gets information about core VFD write tracking and page
  *              aggregation size.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
  * Programmer:  Dana Robinson
  *              Tuesday, April 8, 2014
@@ -3876,19 +3876,19 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_metadata_read_attempts
+ * Function:    H5Pset_metadata_read_attempts
+ *
+ * Purpose:    Sets the # of read attempts in the file access property list
+ *        when reading metadata with checksum.
+ *        The # of read attempts set via this routine will only apply
+ *        when opening a file with SWMR access.
+ *        The # of read attempts set via this routine does not have
+ *        any effect when opening a file with non-SWMR access; for this
+ *        case, the # of read attempts will be always be 1.
  *
- * Purpose:	Sets the # of read attempts in the file access property list
- *		when reading metadata with checksum.
- *		The # of read attempts set via this routine will only apply
- *		when opening a file with SWMR access. 
- *		The # of read attempts set via this routine does not have 
- *		any effect when opening a file with non-SWMR access; for this
- *		case, the # of read attempts will be always be 1.
- *	
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Vailin Choi; Sept 2013
+ * Programmer:    Vailin Choi; Sept 2013
  *
  *-------------------------------------------------------------------------
  */
@@ -3919,13 +3919,13 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_metadata_read_attempts
+ * Function:    H5Pget_metadata_read_attempts
  *
- * Purpose:	Returns the # of metadata read attempts set in the file access property list. 
+ * Purpose:    Returns the # of metadata read attempts set in the file access property list.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Vailin Choi; Sept 2013
+ * Programmer:    Vailin Choi; Sept 2013
  *
  *-------------------------------------------------------------------------
  */
@@ -3945,13 +3945,13 @@ H5Pget_metadata_read_attempts(hid_t plist_id, unsigned *attempts/*out*/)
         if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS)))
             HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")
 
-	/* Get the # of read attempts set */
+    /* Get the # of read attempts set */
         if(H5P_get(plist, H5F_ACS_METADATA_READ_ATTEMPTS_NAME, attempts) < 0)
             HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get the number of metadata read attempts")
 
-	/* If not set, return the default value */
-	if(*attempts == H5F_ACS_METADATA_READ_ATTEMPTS_DEF)	/* 0 */
-	    *attempts = H5F_METADATA_READ_ATTEMPTS;
+    /* If not set, return the default value */
+    if(*attempts == H5F_ACS_METADATA_READ_ATTEMPTS_DEF)    /* 0 */
+        *attempts = H5F_METADATA_READ_ATTEMPTS;
     } /* end if */
 
 done:
@@ -3960,14 +3960,14 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_obj_flush_cb
+ * Function:    H5Pset_obj_flush_cb
  *
- * Purpose:	Sets the callback function to invoke and the user data when an
- *		object flush occurs in the file.
- *	
- * Return:	Non-negative on success/Negative on failure
+ * Purpose:    Sets the callback function to invoke and the user data when an
+ *        object flush occurs in the file.
  *
- * Programmer:	Vailin Choi; Dec 2013
+ * Return:    Non-negative on success/Negative on failure
+ *
+ * Programmer:    Vailin Choi; Dec 2013
  *
  *-------------------------------------------------------------------------
  */
@@ -4004,14 +4004,14 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_obj_flush_cb
+ * Function:    H5Pget_obj_flush_cb
+ *
+ * Purpose:    Retrieves the callback function and user data set in the
+ *        property list for an object flush.
  *
- * Purpose:	Retrieves the callback function and user data set in the
- *		property list for an object flush.
- *	
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Vailin Choi; Dec 2013
+ * Programmer:    Vailin Choi; Dec 2013
  *
  *-------------------------------------------------------------------------
  */
@@ -4035,9 +4035,9 @@ H5Pget_object_flush_cb(hid_t plist_id, H5F_flush_cb_t *func, void **udata)
 
     /* Assign return value */
     if(func)
-	*func = flush_info.func;
+    *func = flush_info.func;
     if(udata)
-	*udata = flush_info.udata;
+    *udata = flush_info.udata;
 
 done:
     FUNC_LEAVE_API(ret_value)
@@ -4045,11 +4045,11 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_mdc_log_options
+ * Function:    H5Pset_mdc_log_options
  *
- * Purpose:	Set metadata cache log options.
+ * Purpose:    Set metadata cache log options.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
  *-------------------------------------------------------------------------
  */
@@ -4097,11 +4097,11 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_mdc_log_options
+ * Function:    H5Pget_mdc_log_options
  *
- * Purpose:	Get metadata cache log options. 
+ * Purpose:    Get metadata cache log options.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
  *-------------------------------------------------------------------------
  */
@@ -4455,8 +4455,8 @@ done:
  *
  * Purpose:        Generic encoding callback routine for 'coll_md_read_flag' properties.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     Mohamad Chaarawi
  *                 Sunday, June 21, 2015
@@ -4493,8 +4493,8 @@ H5P__encode_coll_md_read_flag_t(const void *value, void **_pp, size_t *size)
  *
  * Purpose:        Generic decoding callback routine for 'coll_md_read_flag' properties.
  *
- * Return:	   Success:	Non-negative
- *		   Failure:	Negative
+ * Return:       Success:    Non-negative
+ *           Failure:    Negative
  *
  * Programmer:     Mohamad Chaarawi
  *                 Sunday, June 21, 2015
@@ -4523,22 +4523,22 @@ H5P__decode_coll_md_read_flag_t(const void **_pp, void *_value)
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_all_coll_metadata_ops
+ * Function:    H5Pset_all_coll_metadata_ops
  *
- * Purpose:	Tell the library whether the metadata read operations will
- *		be done collectively (1) or not (0). Default is independent.
- *		With collective mode, the library will optimize access to
- *		metadata operations on the file.
+ * Purpose:    Tell the library whether the metadata read operations will
+ *        be done collectively (1) or not (0). Default is independent.
+ *        With collective mode, the library will optimize access to
+ *        metadata operations on the file.
  *
- * Note:	This routine accepts file access property lists, link
- *		access property lists, attribute access property lists,
- *		dataset access property lists, group access property lists,
- *		named datatype access property lists,
- *		and dataset transfer property lists.
+ * Note:    This routine accepts file access property lists, link
+ *        access property lists, attribute access property lists,
+ *        dataset access property lists, group access property lists,
+ *        named datatype access property lists,
+ *        and dataset transfer property lists.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Mohamad Chaarawi
+ * Programmer:    Mohamad Chaarawi
  *              Sunday, June 21, 2015
  *
  *-------------------------------------------------------------------------
@@ -4582,19 +4582,19 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_all_coll_metadata_ops
+ * Function:    H5Pget_all_coll_metadata_ops
  *
- * Purpose:	Gets information about collective metadata read mode.
+ * Purpose:    Gets information about collective metadata read mode.
  *
- * Note:	This routine accepts file access property lists, link
- *		access property lists, attribute access property lists,
- *		dataset access property lists, group access property lists,
- *		named datatype access property lists,
- *		and dataset transfer property lists.
+ * Note:    This routine accepts file access property lists, link
+ *        access property lists, attribute access property lists,
+ *        dataset access property lists, group access property lists,
+ *        named datatype access property lists,
+ *        and dataset transfer property lists.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Mohamad Chaarawi
+ * Programmer:    Mohamad Chaarawi
  *              Sunday, June 21, 2015
  *
  *-------------------------------------------------------------------------
@@ -4640,14 +4640,14 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_coll_metadata_write
+ * Function:    H5Pset_coll_metadata_write
  *
- * Purpose:	Tell the library whether the metadata write operations will
- *		be done collectively (1) or not (0). Default is collective.
+ * Purpose:    Tell the library whether the metadata write operations will
+ *        be done collectively (1) or not (0). Default is collective.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Mohamad Chaarawi
+ * Programmer:    Mohamad Chaarawi
  *              Sunday, June 21, 2015
  *
  *-------------------------------------------------------------------------
@@ -4679,13 +4679,13 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_coll_metadata_write
+ * Function:    H5Pget_coll_metadata_write
  *
- * Purpose:	Gets information about collective metadata write mode.
+ * Purpose:    Gets information about collective metadata write mode.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Mohamad Chaarawi
+ * Programmer:    Mohamad Chaarawi
  *              Sunday, June 21, 2015
  *
  *-------------------------------------------------------------------------
@@ -4717,15 +4717,15 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pset_page_buffer_size
+ * Function:    H5Pset_page_buffer_size
  *
  * Purpose:     Set the maximum page buffering size. This has to be a
  *              multiple of the page allocation size which must be enabled;
  *              otherwise file create/open will fail.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Mohamad Chaarawi
+ * Programmer:    Mohamad Chaarawi
  *              June 2015
  *
  *-------------------------------------------------------------------------
@@ -4765,13 +4765,13 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Pget_page_buffer_size
+ * Function:    H5Pget_page_buffer_size
  *
- * Purpose:	Retrieves the maximum page buffer size.
+ * Purpose:    Retrieves the maximum page buffer size.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:    Non-negative on success/Negative on failure
  *
- * Programmer:	Mohamad Chaarawi
+ * Programmer:    Mohamad Chaarawi
  *              June 2015
  *
  *-------------------------------------------------------------------------
diff --git a/src/H5Ppublic.h b/src/H5Ppublic.h
index 493a322..a2c0418 100644
--- a/src/H5Ppublic.h
+++ b/src/H5Ppublic.h
@@ -420,6 +420,8 @@ H5_DLL herr_t H5Pset_virtual_view(hid_t plist_id, H5D_vds_view_t view);
 H5_DLL herr_t H5Pget_virtual_view(hid_t plist_id, H5D_vds_view_t *view);
 H5_DLL herr_t H5Pset_virtual_printf_gap(hid_t plist_id, hsize_t gap_size);
 H5_DLL herr_t H5Pget_virtual_printf_gap(hid_t plist_id, hsize_t *gap_size);
+H5_DLL herr_t H5Pset_virtual_prefix(hid_t dapl_id, const char* prefix);
+H5_DLL ssize_t H5Pget_virtual_prefix(hid_t dapl_id, char* prefix /*out*/, size_t size);
 H5_DLL herr_t H5Pset_append_flush(hid_t plist_id, unsigned ndims,
     const hsize_t boundary[], H5D_append_cb_t func, void *udata);
 H5_DLL herr_t H5Pget_append_flush(hid_t plist_id, unsigned dims,
diff --git a/src/H5system.c b/src/H5system.c
index a8726c2..719b7e0 100644
--- a/src/H5system.c
+++ b/src/H5system.c
@@ -1043,7 +1043,7 @@ H5_build_extpath(const char *name, char **extpath /*out*/)
          * Unix: does not apply
          */
         if(H5_CHECK_ABS_DRIVE(name)) {
-            drive = name[0] - 'A' + 1;
+            drive = HDtoupper(name[0]) - 'A' + 1;
             retcwd = HDgetdcwd(drive, cwdpath, MAX_PATH_LEN);
             HDstrncpy(new_name, &name[2], name_len);
         } /* end if */