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-rw-r--r--src/H5Apkg.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/H5Apkg.h b/src/H5Apkg.h
index 10cebee..d1cc34c 100644
--- a/src/H5Apkg.h
+++ b/src/H5Apkg.h
@@ -51,6 +51,23 @@
/* Package Private Macros */
/**************************/
+/* This is the initial version, which does not have support for shared datatypes */
+#define H5O_ATTR_VERSION_1 1
+
+/* This version allows support for shared datatypes & dataspaces by adding a
+ * 'flag' byte indicating when those components are shared. This version
+ * also dropped the alignment on all the components.
+ */
+#define H5O_ATTR_VERSION_2 2
+
+/* Add support for different character encodings of attribute names */
+#define H5O_ATTR_VERSION_3 3
+
+/* The latest version of the format. Look through the 'encode', 'decode'
+ * and 'size' message callbacks for places to change when updating this.
+ */
+#define H5O_ATTR_VERSION_LATEST H5O_ATTR_VERSION_3
+
/****************************/
/* Package Private Typedefs */
@@ -60,16 +77,21 @@
struct H5A_t {
H5O_shared_t sh_loc; /* Shared message info (must be first) */
+ unsigned version; /* Version to encode attribute with */
hbool_t initialized;/* Indicate whether the attribute has been modified */
hbool_t obj_opened; /* Object header entry opened? */
H5O_loc_t oloc; /* Object location for object attribute is on */
H5G_name_t path; /* Group hierarchy path */
+
char *name; /* Attribute's name */
H5T_cset_t encoding; /* Character encoding of attribute name */
+
H5T_t *dt; /* Attribute's datatype */
size_t dt_size; /* Size of datatype on disk */
+
H5S_t *ds; /* Attribute's dataspace */
size_t ds_size; /* Size of dataspace on disk */
+
void *data; /* Attribute data (on a temporary basis) */
size_t data_size; /* Size of data on disk */
H5O_msg_crt_idx_t crt_idx; /* Attribute's creation index in the object header */
@@ -186,6 +208,7 @@ H5_DLL herr_t H5A_free(H5A_t *attr);
H5_DLL herr_t H5A_close(H5A_t *attr);
H5_DLL H5O_ainfo_t *H5A_get_ainfo(H5F_t *f, hid_t dxpl_id, H5O_t *oh,
H5O_ainfo_t *ainfo);
+H5_DLL unsigned H5A_get_version(const H5F_t *f, const H5A_t *attr);
/* Attribute "dense" storage routines */
H5_DLL herr_t H5A_dense_create(H5F_t *f, hid_t dxpl_id, H5O_ainfo_t *ainfo);