[svn-r19641] Description:

	Bring r19542:19639 from trunk to revise_chunks branch.

Tested on:
        FreeBSD/32 6.3 (duty) in debug mode
        FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x,
                w/C++ & FORTRAN, w/threadsafe, in debug mode
        Linux/64-amd64 2.6 (amani) w/Intel compilers, w/default API=1.6.x,
                w/C++ & FORTRAN, in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                w/szip filter, w/threadsafe, in production mode
        Linux/PPC 2.6 (heiwa) w/C++ & FORTRAN, w/threadsafe, in debug mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                in production mode
        Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in debug mode
        Mac OS X/32 10.6.4 (amazon) in debug mode
        Mac OS X/32 10.6.4 (amazon) w/C++ & FORTRAN, w/threadsafe,
                in production mode
        Mac OS X/32 10.6.4 (amazon) w/parallel, in debug mode

1 files changed, 49 insertions, 0 deletions

diff --git a/src/H5Otest.c b/src/H5Otest.c
index 557ac9e..883bfcd 100644
--- a/src/H5Otest.c
+++ b/src/H5Otest.c
@@ -536,3 +536,52 @@ done:
     FUNC_LEAVE_NOAPI(ret_value)
 }   /* H5O_expunge_chunks_test() */
 
+
+/*--------------------------------------------------------------------------
+ NAME
+    H5O_get_rc
+ PURPOSE
+    Retrieve the refcount for the object header
+ USAGE
+    herr_t H5O_expunge_chunks_test(loc, dxpl_id, rc)
+        const H5O_loc_t *loc;   IN: Object location for object header to query
+        hid_t dxpl_id;          IN: DXPL to use for operation
+        unsigned *rc;           OUT: Pointer to refcount for object header
+ RETURNS
+    Non-negative on success, negative on failure
+ DESCRIPTION
+    Protects object header, retrieves the object header's refcount, and
+    unprotects object header.
+ GLOBAL VARIABLES
+ COMMENTS, BUGS, ASSUMPTIONS
+    DO NOT USE THIS FUNCTION FOR ANYTHING EXCEPT TESTING
+ EXAMPLES
+ REVISION LOG
+--------------------------------------------------------------------------*/
+herr_t
+H5O_get_rc(const H5O_loc_t *loc, hid_t dxpl_id, unsigned *rc)
+{
+    H5O_t *oh = NULL;           /* Object header */
+    herr_t ret_value = SUCCEED; /* Return value */
+
+    FUNC_ENTER_NOAPI(H5O_get_rc, FAIL)
+
+    /* Sanity check */
+    HDassert(loc);
+    HDassert(rc);
+
+    /* Get the object header */
+    if(NULL == (oh = H5O_protect(loc, dxpl_id, H5AC_READ)))
+	HGOTO_ERROR(H5E_OHDR, H5E_CANTPROTECT, FAIL, "unable to protect object header")
+
+    /* Save the refcount for the object header */
+    *rc = oh->nlink;
+
+done:
+    /* Release the object header */
+    if(oh && H5O_unprotect(loc, dxpl_id, oh, H5AC__NO_FLAGS_SET) < 0)
+	HDONE_ERROR(H5E_OHDR, H5E_CANTUNPROTECT, FAIL, "unable to unprotect object header")
+
+    FUNC_LEAVE_NOAPI(ret_value)
+}   /* H5O_expunge_chunks_test() */
+