Fix possible file corruption when using "new" format object headers and the
size of chunk #0 for an object header transitions between needing 1->2->4->8-
byte encoding for the size and there are "clean" messages in the object header
already. (Usually triggered by flushing the file while adding attributes to
an object)
Tested on:
Mac OS X/32 10.4.9 (amazon)
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)
Check in "unique, but sharable" optimization to ISOHM code, which
allows object header messages that are only used in one object to remain in
the sole user's header, but migrates messages that are used in more than one
header into the ISOHM heap.
Tested on:
Mac OS X/32 10.4.9 (amazon)
FreeBSD/32 6.2 (duty)
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)
Move ref. count of # of links to an object out of the object header's
prefix and make it a header message instead (since it's a "rare" occurence),
eliminating some more space for each object in the file.
Inserting this "ref. count" message exposed a flaw in the library's
mechanism for locating a message to promote to another chunk and replace
with a continuation message, which required some additional work to fix.
It's still not completely robust, but it's working for more cases now and
detects failures robustly.
Reduced the minimum size of an object header chunk to just enough to
contain a header message prefix and continuation message.
Tested on:
FreeBSD/32 6.2 (duty)
Fix mis-calculation of chunk #0 size encoding and also catch a few more
places which adjust the size of chunk and have them adjust the encode flags
also. Add some assertions to object header sanity checking routine.
Tested on:
FreeBSD/32 6.2 (duty)
Eliminate message count from new version of object header prefix -
it can be computed when the header is loaded and the table of messages is
built.
Tested on:
FreeBSD/32 6.2 (duty)
Make H5O_protect/H5O_unprotect use pinned cache entries instead of
protected entries (allowing the object header routines to be semi-reentrant).
Tested on:
FreeBSD 6.2 (duty)
Tested platform:
Kagiso only since it is only a comment block change. If it works in one
machine, it should work in all, I hope. Still need to check the parallel
build on copper.
More cleanups on the object header message handling code, to make it
easier to work with and move forward on the creation order coding.
Various other minor cleanups & warning fixes.
Tested on:
FreeBSD/32 6.2 (duty)
Add "set_crt_index" and "get_crt_index" methods for the object header
message class.
Unify fractal heap definitions for shared messages and attributes, under
"object header" fractal heap definitions.
Initial code for adding creation order index to object header messages.
Tested on:
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)
Push support for shared attributes into more dark corners of the "dense"
attribute storage support.
Tested on:
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)
Migrate more object header routines to use the H5O_msg_ prefix and put
them into the src/H5Omessage.c code module.
Tested on:
Mac OS X/32 10.4.8 (amazon)
FreeBSD/32 4.11 (sleipnir)
Linux/32 2.4 (heping)
AIX/32 5.? (copper)
to make the test pass.
These changes involve changes to the file format of SOHMs, but that's okay
because nobody should have been using SOHMs yet anyway.
Tested on Windows, kagiso, copper, and heping
Add src/H5Oalloc.c file forgotten in previous object header checkin
Break out more object header routines into separate file (debugging routines
this time).
Fix "//" style comment in recent ISOHM source changes.
Fix 'size_t' vs. 'unsigned' problem (visible in 64-bit testing) in recent
ISOHM test changes.
Tested on:
FreeBSD/32 4.11 (sleipnir)
Linux/32 2.4 (heping)
Linux/64 2.4 (mir)
