/*
 * Copyright (c) 2003-4 Kian Duffy <myob@users.sourceforge.net>
 * Parts Copyright (C) 1998,99 Kazuho Okui and Takashi Murai. 
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files or portions
 * thereof (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject
 * to the following conditions:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 *  * Redistributions in binary form must reproduce the above copyright notice
 *    in the  binary, as well as this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided with
 *    the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

#ifndef TERMPARSE_H
#define TERMPARSE_H

#include <kernel/OS.h>
#include <MessageRunner.h>
#include "TermConst.h"

class TermView;
class CodeConv;
class TermWindow;
 
//PtyReader buffer size.
#define READ_BUF_SIZE 2048

class TermParse : public BHandler
{
public:
  TermParse (void);
  ~TermParse (void);

  // Initialize TermParse and PtyReader thread.
  status_t InitTermParse (TermView *inViewObj, CodeConv *inConvObj);
  thread_id InitPtyReader (TermWindow *inWinObj);

  // Delete TermParse and PtyReader thread.
  status_t AbortTermParse (void);
  status_t AbortPtyReader (void);
  
  
private:
  //
  // Hook Functions.
  //


  // Escape Sequance parse thread.
  static int32 EscParse (void *);

  // Pty device reader thread.
  static int32 PtyReader (void *);

  // Reading ReadBuf at one Char.
  uchar GetReaderBuf (void);
  
  TermView *fViewObj;
  TermWindow *fWinObj;
  CodeConv *fConvObj;
  
  thread_id fParseThread;
  sem_id fParseSem;

  thread_id fReaderThread;
  sem_id fReaderSem;
  sem_id fReaderLocker;

  BMessageRunner *fCursorUpdate;

  uint fParser_p;	/* EscParse reading buffer pointer */
  int fLockFlag;	/* PtyReader lock flag */

  bool fQuitting;
  
  uchar fReadBuf[READ_BUF_SIZE]; /* Reading buffer */
  
};

#endif // TERMPARSE_H