source: branches/lispworks/@Release Notes 0.8@ 18

This file contains release notes for version 0.8 of Wood.

New features since 0.6
----------------------

There is a garbage collector. See documentation for GC-PHEAP-FILE in
"wood.doc".

Wood now properly restores structure instances. Wood 0.6 was able to
P-STORE one, but would error on an attempt to P-LOAD it.

The version number (stored in the header of a persistent heap file) has
changed, and OPEN-PHEAP now checks for the correct version number.
Files with the old version number will be automatically updated to the
new version. The reason for the change was a bug with symbols whose
storage crossed a block boundary. The old code overwwrote the 8 byte
header for the next block instead of using the second 8 bytes in the
block.


Bug fixes
---------

btrees.lisp
;;; 07/31/93 bill  %btree-insert-in-inner-node now goes out of line to
;;;                %attempt-to-shift-left-inner-node & %attempt-to-shift-right-inner-node.
;;;                %attempt-to-shift-right-inner-node is new code. I thought
;;;                that I could get away with leaving it out, but I was wrong.
;;; 03/29/93 bill  *forwarded-btree* in btree-find-leaf-node & dc-map-btree
;;; 03/25/93 bill  %btree-split-inner-node - wrong page on one of the accessing-byte-array's
;;;                Also, neglected to update last-middle-size when the parent entry went at the
;;;                end of the new middle node. In this case, some of the copying was also extraneous. 

disk-cache-accessors.lisp
;; 08/10/93 bill eval-when around requires of lapmacros & lispequ.

disk-cache.lisp
;; 03/27/93 bill with-open-disk-cache

load-wood.lisp
;; 12/17/93 bill  Use "wood:wood;..." instead of "wood:..." to prevent
;;                bogus default directories.
;;                Add "version-control" to *wood-files*

persistent-clos.lisp
;; 10/25/93 bill  initialize-persistent-instance

persistent-heap.lisp
;; 12/27/93 bill  export p-btree-count, p-hash-table-count, initialize-persistent-instance
;; 12/17/93 bill  increment version number. Call check-pheap-version in open-pheap
;; 11/09/93 bill  p-load-lfun & (method %p-store-object (t function t)) updated
;;                to work with functions whose immediates reference the function.
;; 10/20/93 bill  p-load-struct
;; 07/07/93 bill  %p-store-lfun-vector
;; 06/26/93 bill  use addr+, not +, when computing $sym_xxx addresses.
;; 03/29/93 bill  dc-%make-symbol comes out of line from dc-intern
;; 03/27/93 bill  dc-root-object, (setf dc-root-object)
;; 03/09/93 bill  DWIM for (setf p-car) & (setf p-cdr) was wrong.

split-lfun.lisp
;; 11/09/93 bill  %patch-lfun-immediates

version-control.lisp
;; 12/17/93 bill  New file

wood-gc.lisp
;; 03/27/93 bill New file. Doesn't yet deal with consing areas.
;;               Also doesn't delete anything from weak hash tables.

woodequ.lisp
;; 03/27/93 bill  $forwarding-pointer-header