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/*
* Copyright © 2008-2010 dragchan <zgchan317@gmail.com>
* This file is part of FbTerm.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef IO_H
#define IO_H
#include "type.h"
#include "instance.h"
class IoPipe {
public:
IoPipe();
virtual ~IoPipe();
s32 fd() { return mFd; }
void ready(bool isread);
static const s8 *localCodec();
protected:
void setFd(s32 fd);
void setCodec(const s8 *up, const s8 *down);
void write(s8 *buf, u32 len);
virtual void readyRead(s8 *buf, u32 len) = 0;
virtual void ioError(bool read, s32 err) {}
private:
void translate(bool isread, s8 *buf, u32 len);
void writeIo(s8 *buf, u32 len);
s32 mFd;
void *mCodecRead, *mCodecWrite;
s8 mBufRead[16], mBufWrite[16];
u32 mBufLenRead, mBufLenWrite;
};
class IoDispatcher {
DECLARE_INSTANCE(IoDispatcher)
private:
virtual void addIoSource(IoPipe *src, bool isread) = 0;
virtual void removeIoSource(IoPipe *src, bool isread) = 0;
friend class IoPipe;
};
#endif
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