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/*
* growbuf.h
*
* This file is a part of NSIS.
*
* Copyright (C) 1999-2008 Nullsoft and Contributors
*
* Licensed under the zlib/libpng license (the "License");
* you may not use this file except in compliance with the License.
*
* Licence details can be found in the file COPYING.
*
* This software is provided 'as-is', without any express or implied
* warranty.
*/
#ifndef __GROWBUF_H_
#define __GROWBUF_H_
class IGrowBuf
{
public:
virtual ~IGrowBuf() {}
virtual int add(const void *data, int len)=0;
virtual void resize(int newlen)=0;
virtual int getlen() const=0;
virtual void *get() const=0;
};
class GrowBuf : public IGrowBuf
{
private: // don't copy instances
GrowBuf(const GrowBuf&);
void operator=(const GrowBuf&);
public:
GrowBuf();
virtual ~GrowBuf();
void set_zeroing(int zero);
int add(const void *data, int len);
void resize(int newlen);
int getlen() const;
void *get() const;
private:
void *m_s;
int m_alloc;
int m_used;
int m_zero;
protected:
int m_bs;
};
class TinyGrowBuf : public GrowBuf {
public:
TinyGrowBuf() : GrowBuf() { m_bs=1024; }
};
#endif
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