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-rw-r--r--src/H5ACpkg.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/H5ACpkg.h b/src/H5ACpkg.h
index dbbd8a0..816f1d5 100644
--- a/src/H5ACpkg.h
+++ b/src/H5ACpkg.h
@@ -351,6 +351,12 @@ H5FL_EXTERN(H5AC_aux_t);
* this verification. The field is set to NULL when the
* callback is not needed.
*
+ * The following field supports the metadata cache image feature.
+ *
+ * p0_image_len: unsiged integer containing the length of the metadata cache
+ * image constructed by MPI process 0. This field should be 0
+ * if the value is unknown, or if cache image is not enabled.
+ *
****************************************************************************/
#ifdef H5_HAVE_PARALLEL
@@ -400,6 +406,9 @@ typedef struct H5AC_aux_t
void (* sync_point_done)(int num_writes,
haddr_t * written_entries_tbl);
+
+ unsigned p0_image_len;
+
} H5AC_aux_t; /* struct H5AC_aux_t */
#endif /* H5_HAVE_PARALLEL */