increment can now be specified for the core vfd driver

src/Fortran/H5.c

@@ -98,13 +98,14 @@ h5_setprop_file_mpio_posix (
                 H5_SETPROP_FILE_COREVFD)
 h5_int64_t
 h5_setprop_file_corevfd (
-        h5_int64_t* _prop
+        h5_int64_t* _prop,
+	h5_int64_t* increment
         ) {
         H5_API_ENTER (h5_int64_t,
-                      "prop=%lld",
-                      (long long int)*_prop);
+                      "prop=%lld, increment=%lld",
+                      (long long int)*_prop, (long long int)*increment);
         h5_prop_t prop = (h5_prop_t)*_prop;
-        H5_API_RETURN ((h5_int64_t)h5_set_prop_file_core_vfd (prop));
+        H5_API_RETURN ((h5_int64_t)h5_set_prop_file_core_vfd (prop, increment));
 }
 
 #define h5_setprop_file_align FC_MANGLING (  \

src/h5core/h5_openclose.c

@@ -246,10 +246,11 @@ h5_set_prop_file_mpio_posix (
 
 h5_err_t
 h5_set_prop_file_core_vfd (
-        h5_prop_t _props
+        h5_prop_t _props,
+	h5_int64_t increment
         ) {
         h5_prop_file_p props = (h5_prop_file_p)_props;
-        H5_CORE_API_ENTER (h5_err_t, "props=%p", props);
+        H5_CORE_API_ENTER (h5_err_t, "props=%p, increment=%lld", props, (long long int)increment);
         
         if (props->class != H5_PROP_FILE) {
                 H5_INLINE_FUNC_LEAVE (
@@ -261,6 +262,7 @@ h5_set_prop_file_core_vfd (
         props->flags &= ~(H5_VFD_MPIO_COLLECTIVE | H5_VFD_MPIO_INDEPENDENT | H5_VFD_MPIO_POSIX);
         props->flags |= H5_VFD_MPIO_INDEPENDENT;
         props->comm = MPI_COMM_SELF;
+	props->increment = increment;
 	if (props->throttle > 0) {
 		h5_warn ("Throttling is not permitted with core VFD. Reset throttling.");
 		props->throttle = 0;

src/h5core/h5_types_private.h

@@ -18,10 +18,11 @@ struct h5_prop {                        // generic property class
         char pad[248];                  // sizeof (struct h5_prop) == 256
 };
 
-struct h5_prop_file {                        // file property
+struct h5_prop_file {                   // file property
         h5_int64_t class;               // property class == H5_PROP_FILE
         h5_int64_t flags;               // file access mode (read-write, readonly ...
         h5_int64_t align;               // HDF5 alignment
+	h5_int64_t increment;		// increment for core vfd
         h5_int64_t throttle;
         MPI_Comm comm;
 	hid_t	xfer_prop;		// dataset transfer properties