[svn-r25321] Reworked and enhanced extreme sanity check in H5C.c, fixing an

uninitialized variable bug in passing.

Added the H5C_get_entry_ptr_from_addr() and H5C_verify_entry_type()
in H5C.c, along with their pass through functions in H5AC.c.  Note
that H5C_get_entry_ptr_from_addr() is quite slimey, and should be
avoided if possible.

Updated fractal heap to use flush ordering to force children
in the hdr / iblock / dblock tree to be flushed prior to parents.
This is part of a port of the fractal heap to the V3 cache, although
I gather that it will also be useful for SWMR.

Added sanity checking code to the fractal heap to verify that direct 
blocks are flushed before their parent indirect blocks, child indirect
block are flushed prior to their parent indirect blocks, and that the
root iblock or dblock is flushed prior to the header

Tested on:

        Jam: Serial and parallel
        Phoenix (Debian): serial, debug and production
        amazon (MacOS): serial

1 files changed, 12 insertions, 0 deletions

diff --git a/src/H5Cprivate.h b/src/H5Cprivate.h
index 433411f..38b9469 100644
--- a/src/H5Cprivate.h
+++ b/src/H5Cprivate.h
@@ -1223,5 +1223,17 @@ H5_DLL herr_t H5C_ignore_tags(H5C_t * cache_ptr);
 
 H5_DLL void H5C_retag_copied_metadata(H5C_t * cache_ptr, haddr_t metadata_tag);
 
+#ifndef NDEBUG	/* debugging functions */
+
+H5_DLL herr_t H5C_get_entry_ptr_from_addr(const H5F_t *f, haddr_t addr,
+                                          void ** entry_ptr_ptr);
+
+H5_DLL herr_t H5C_verify_entry_type(const H5F_t * f, haddr_t addr,
+                                    const H5C_class_t * expected_type,
+                                    hbool_t * in_cache_ptr,
+                                    hbool_t * type_ok_ptr);
+
+#endif /* NDEBUG */
+
 #endif /* !_H5Cprivate_H */