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authorQuincey Koziol <koziol@hdfgroup.org>2003-10-07 15:27:19 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2003-10-07 15:27:19 (GMT)
commit58c03f79fd15001ee30b36d0afba14fc8dcaf687 (patch)
tree6fad648f6c3aec38f44f2d4a9c142c288f363e0a /src/H5O.c
parentf766b32d07fae4562e95b9166255c35c8f3e467a (diff)
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[svn-r7561] Purpose:
Feature add Description: Add a few new fields to the H5G_stat_t structure, to allow more information about the object header to be retrieved. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
Diffstat (limited to 'src/H5O.c')
-rw-r--r--src/H5O.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/src/H5O.c b/src/H5O.c
index d9ef4ff..ebda246 100644
--- a/src/H5O.c
+++ b/src/H5O.c
@@ -3279,6 +3279,67 @@ done:
/*-------------------------------------------------------------------------
+ * Function: H5O_get_info
+ *
+ * Purpose: Retrieve information about an object header
+ *
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Quincey Koziol
+ * koziol@ncsa.uiuc.edu
+ * Oct 7 2003
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5O_get_info(H5G_entry_t *ent, H5O_stat_t *ostat, hid_t dxpl_id)
+{
+ H5O_t *oh=NULL; /* Object header information */
+ H5O_mesg_t *curr_msg; /* Pointer to current message being operated on */
+ hsize_t total_size; /* Total amount of space used in file */
+ hsize_t free_space; /* Free space in object header */
+ unsigned u; /* Local index variable */
+ herr_t ret_value=SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(H5O_get_info,FAIL);
+
+ /* Check args */
+ assert (ent);
+ assert (ostat);
+
+ /* Get the object header information */
+ if (NULL == (oh = H5AC_protect(ent->file, dxpl_id, H5AC_OHDR, ent->header, NULL, NULL, H5AC_READ)))
+ HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL, "unable to load object header");
+
+ /* Iterate over all the messages, accumulating the total size & free space */
+ total_size=H5O_SIZEOF_HDR(ent->file);
+ free_space=0;
+ for (u = 0, curr_msg=&oh->mesg[0]; u < oh->nmesgs; u++,curr_msg++) {
+ /* Accumulate the size for this message */
+ total_size+= H5O_SIZEOF_MSGHDR(ent->file) + curr_msg->raw_size;
+
+ /* Check for this message being free space */
+ if (H5O_NULL_ID == curr_msg->type->id)
+ free_space+= H5O_SIZEOF_MSGHDR(ent->file) + curr_msg->raw_size;
+ } /* end for */
+
+ /* Set the information for this object header */
+ ostat->size=total_size;
+ ostat->free=free_space;
+ ostat->nmesgs=oh->nmesgs;
+ ostat->nchunks=oh->nchunks;
+
+done:
+ if (oh && H5AC_unprotect(ent->file, dxpl_id, H5AC_OHDR, ent->header, oh, FALSE)<0)
+ HDONE_ERROR(H5E_OHDR, H5E_PROTECT, FAIL, "unable to release object header");
+
+ FUNC_LEAVE_NOAPI(ret_value);
+} /* end H5O_get_info() */
+
+
+/*-------------------------------------------------------------------------
* Function: H5O_debug_id
*
* Purpose: Act as a proxy for calling the 'debug' method for a