bdoor.c

一个用在mips体系结构中的操作系统

/*
 * Copyright (C) 1996-1998 by the Board of Trustees
 *    of Leland Stanford Junior University.
 * 
 * This file is part of the SimOS distribution. 
 * See LICENSE file for terms of the license. 
 *
 */

#include <stdio.h>

#ifdef __alpha
#define BUFSIZE 8192 
#else
#define BUFSIZE 1024
#endif

int count = 0;
int buf[BUFSIZE];
int doRead = 0;
int dummy = 0;


#ifdef __alpha

/*
 * The SimOS-AXP support is non-existent for now --> restructure
 * bdoor. Eventually, we should all use this version anyway
 */


void mainEval(int argc, char **argv) {; }

void mainEvalLoop(void) { ; } 
      
int main(int argc, char **argv)
{
  int i,j=0;
   
  buf[0] = 0;
  buf[BUFSIZE-1] = 0;
   
  mainEval(argc,argv);

  if (doRead) {
  } else {

    while (1) {
      mainEvalLoop();
      j++; /* Put the set count annotation here */
      fprintf(stderr, "bdoor: count=%d buf=%p\n", count, buf);
      if (!count) break;
      fwrite((char *)buf, 1, count, stdout);
    }
  }
  return 0;
}



#else /* __alpha */

int
main(int argc, char **argv)
{
   int i,j=0;
   
   buf[0] = 0;
   buf[BUFSIZE-1] = 0;
   
eval:
   
   dummy = 1;
   
   while (1) {
 loop:
      j++; /* Put the set count annotation here */
      if (!count) break;
      fwrite((char *)buf, 1, count, stdout);
   }
   
read:
   
   while (doRead) {
      count = fread((char *)buf, 1, 4096, stdin);
 read_loop:
      dummy = 1;
   }
   
   j = 0;
   return 0;
}
#endif /* __alpha */