readerinputhandler.h

来自「Linux下比较早的基于命令行的DVD播放器」· C头文件 代码 · 共 80 行

//
// Copyright (c) 2003 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef DXR3PLAYER_INPUT_READERINPUTHANDLER_H
#define DXR3PLAYER_INPUT_READERINPUTHANDLER_H
//------------------------------------------------------------------------------

#include "input/CharInputHandler.h"

#include "sched/Schedulable.h"
#include "sched/FDWaitCondition.h"

//------------------------------------------------------------------------------

namespace input {

//------------------------------------------------------------------------------

/**
 * Input handler that reads characters from a file descriptor.
 */
class ReaderInputHandler : public CharInputHandler,
                           public sched::Schedulable
{
protected:
    /**
     * The wait condition for the file descriptor to use
     */
    sched::FDReadableWaitCondition inputReadable;

public:
    /**
     * Construct the reader input handler.
     */
    ReaderInputHandler(InputListener& listener,
                       const char* name,
                       const Sequence* sequences);

    /**
     * Start the reader input handler.
     */
    void start(int f);

    /**
     * Try to read a character, and if succeeds, add it to the current
     * sequence. 
     *
     * @see sched::Schedulable::run
     */
    virtual void run();
};

//------------------------------------------------------------------------------

} /* namespace input */

//------------------------------------------------------------------------------
#endif // DXR3PLAYER_INPUT_READERINPUTHANDLER_H

// Local variables:
// mode: c++
// End: