/* Copyright (C) 1995, Tektronix Inc. All Rights Reserved. * *   Usage Restrictions * * License is granted to copy, to use, and to make and to use derivative * works for research and evaluation purposes only. * *   Disclaimer of Warranty * * These software programs are available to the user without any license * fee or royalty on an "as is" basis.  Tektronix Inc. disclaims any and * all warranties, whether express, implied, or statuary, including any * implied warranties or merchantability or of fitness for a particular * purpose.  In no event shall the copyright-holder be liable for any  * incidental, punitive, or consequential damages of any kind whatsoever * arising from the use of these programs. * * This disclaimer of warranty extends to the user of these programs and * user's customers, employees, agents, transferees, successors, and * assigns. * * The Tektronix Inc. does not represent or warrant that the programs * furnished hereunder are free of infringement of any third-party * patents.*//* Producer class implementation */#include "Utilities.H"#include "Producer.H"#include "OutputPort.H"extern "C"{//#include <stdio.h>}Producer::Producer (Encoder* e){  encoder = e;  length_stored = 0;  buf_index = 1;  buf = NULL;
}void Producer::connect (OutputPort* p){  oport = p;}int Producer::fill_buffer (){  // do nothing in the base class  return 0;}int Producer::get_nready (){  if (length_stored < buf_index) return 0;  return length_stored - buf_index; }int Producer::send_partial (int n){  if (buf_index >= length_stored)    {      // fill buffer      length_stored = fill_buffer();    }  // now send bytes  for (int i = 0; i < n; i++)    {      if (buf_index < length_stored)	{          oport->write_byte(buf[buf_index]);          buf_index++;	}      else	{	  oport->write_byte(0xff);	  sys_message("0xff padding inserted by Producer::send_partial");	}    }  if (buf_index < length_stored)    return 0;  else    return 1;}