e497d771b1
* Added license and copyright notice to every source file * The new COPYING file and license section in the Users Manual list the terms of all relevant licenses git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@4787 212acab6-be3b-0410-9dea-997c60f758d6
95 lines
2.1 KiB
C++
95 lines
2.1 KiB
C++
/*
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* cbzip2.h
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*
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* This file is a part of NSIS.
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*
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* Copyright (C) 1999-2006 Nullsoft and Contributors
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*
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* Licensed under the zlib/libpng license (the "License");
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* you may not use this file except in compliance with the License.
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*
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* Licence details can be found in the file COPYING.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty.
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*/
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#ifndef __CBZIP2_H__
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#define __CBZIP2_H__
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#include "compressor.h"
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#include "bzip2/bzlib.h"
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class CBzip2 : public ICompressor {
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public:
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virtual ~CBzip2() {}
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int Init(int level, unsigned int dict_size) {
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last_ret = !BZ_STREAM_END;
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stream = new bz_stream;
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if (!stream) return BZ_MEM_ERROR;
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return BZ2_bzCompressInit(stream, level, 0, 30);
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}
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int End() {
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int ret = BZ2_bzCompressEnd(stream);
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delete stream;
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return ret;
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}
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int Compress(bool finish) {
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// act like zlib when it comes to stream ending
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if (last_ret == BZ_STREAM_END && finish)
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return BZ_STREAM_END;
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last_ret = BZ2_bzCompress(stream, finish?BZ_FINISH:0);
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return last_ret;
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}
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void SetNextIn(char *in, unsigned int size) {
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stream->next_in = in;
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stream->avail_in = size;
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}
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void SetNextOut(char *out, unsigned int size) {
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stream->next_out = out;
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stream->avail_out = size;
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}
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virtual char* GetNextOut() {
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return stream->next_out;
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}
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virtual unsigned int GetAvailIn() {
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return stream->avail_in;
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}
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virtual unsigned int GetAvailOut() {
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return stream->avail_out;
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}
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const char* GetName() {
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return "bzip2";
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}
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const char* GetErrStr(int err) {
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switch (err)
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{
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case BZ_SEQUENCE_ERROR:
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return "sequence error - bad call";
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case BZ_PARAM_ERROR:
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return "parameter error - bad call";
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case BZ_MEM_ERROR:
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return "not enough memory";
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case BZ_CONFIG_ERROR:
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return "config error";
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default:
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return "unknown error";
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}
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}
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private:
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bz_stream *stream;
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int last_ret;
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};
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#endif
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