X-Git-Url: http://git.kpe.io/?p=memstore.git;a=blobdiff_plain;f=src%2Fcompress.lisp;fp=src%2Fcompress.lisp;h=c3920f7edabb6e168e396d39757a75a1a94445cd;hp=0000000000000000000000000000000000000000;hb=a78b79b063a808bec0f463db1bb9dc78ba832a46;hpb=881e2c561c5c9de3fe4bb962da256552fa03d796

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+;; -*- Mode: Common-Lisp -*-
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; FILE IDENTIFICATION
+;;
+;; Name:          compress.lisp
+;; Purpose:       Uses zlib to compress and uncompress vectors of octets
+;; Author:        Kevin Rosenberg
+;; Date Started:  July 2011
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(in-package #:memstore)
+
+;; KMR: zlib gives compression errors on random tests:
+;;    indices outside of input array size
+;; Using salza2 as default compressor
+(defun compress (data)
+  (let ((comp (salza2:compress-data
+               data
+               (make-instance 'salza2:zlib-compressor))))
+    (values comp (length comp))))
+
+;; KMR: zlib appears to works fine with salza2 zlib compressor, but
+;; moving to chipz as default decompressor as appears better supported
+;;(defun uncompress-zlib (data)
+;;  (zlib:uncompress data))
+
+(defun uncompress (data)
+  (chipz:decompress nil 'chipz:zlib data))