fish/input/console.c

   1 /*******************************
   2 *  CONSOLE  08/04/90
   3 *  Written by Timm Martin
   4 *  This code is public domain.
   5 ********************************/
   6
   7 #include <aros/oldprograms.h>
   8 #include <devices/console.h>
   9 #include <exec/devices.h>
  10 #include <exec/types.h>
  11 #include "input.h"
  12
  13 struct Device *ConsoleDevice = NULL;
  14 struct IOStdReq ConsoleReq;
  15 long ConsoleError = TRUE;
  16
  17 /****************
  18 *  CONSOLE OPEN
  19 *****************/
  20
  21 /*
  22 This function attempts to open the console device.  TRUE or FALSE is returned
  23 whether it was successful.
  24 */
  25
  26 BOOL console_open( void )
  27 {
  28   if (!(ConsoleError = OpenDevice( "console.device", -1L,
  29                                  (struct IORequest *)&ConsoleReq, 0 )))
  30     ConsoleDevice = ConsoleReq.io_Device;
  31
  32   return (ConsoleError == FALSE);
  33 }
  34
  35 /*****************
  36 *  CONSOLE CLOSE
  37 ******************/
  38
  39 /*
  40 This procedure closes the console device if it was opened and resets the
  41 corresponding pointers.
  42 */
  43
  44 void console_close( void )
  45 {
  46   if (!ConsoleDevice)
  47   {
  48     CloseDevice( (struct IORequest *)&ConsoleReq );
  49     ConsoleDevice = NULL;
  50   }
  51 }