stdio_rd.c

来自「Vxworks下的C例子程序」· C语言 代码 · 共 63 行

/*
 * Standard I/O redirection
 *
 * Author: Aaron Kunze, [e-mail]
 *
 * $Id: stdio_rd.c,v 1.1 1999/11/30 22:28:07 borkhuis Exp $
 *
 */


#define TO_SYSTEM_MONITOR       1
#define TO_TARGET_SHELL         2
#define TO_COMM3                3

void RedirectStandardIO(IO_DIRECTION direction)
{
  int op;

  switch (direction)
  {
    case TO_SYSTEM_MONITOR:
       op = open("/pcConsole/0", O_RDWR | O_CREAT, 0);
       if (op == ERROR)
       {
          puts("Error Redirecting Output to pcConsole");
       }
       else
       {
         ioGlobalStdSet(STD_IN, op);
         ioGlobalStdSet(STD_OUT, op);
         ioGlobalStdSet(STD_ERR, op);
       }
       break;
    case TO_TARGET_SHELL:
      op = open("/vio/0", O_RDWR | O_CREAT, 0);
      if (op == ERROR)
      {
        puts("Error Redirecting Output to Target Shell");
      }
      else
      {
        ioGlobalStdSet(STD_OUT, op);
        ioGlobalStdSet(STD_ERR, op);
        logFdSet(op);
      }
      break;
    case TO_COMM3:
      op = open("/tyCo/2", O_RDWR | O_CREAT, 0);
      if (op == ERROR)
      {
        puts("Error Redirecting Output to comm 3");
      }
      else
      {
        ioGlobalStdSet(STD_IN, op);
        ioGlobalStdSet(STD_OUT, op);
        ioGlobalStdSet(STD_ERR, op);
      }
      break;
    }; // end of switch
}