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From: addison@pollux.usc.edu (Richard Addison)
Newsgroups: comp.sys.amiga.tech
Subject: Re: fork() (not forkv()!) on Amiga?
Summary: An answer to (2)
Keywords: raw cooked
Message-ID: <20434@usc.edu>
Date: 11 Oct 89 04:11:58 GMT
References: <13920001@hpfelg.HP.COM>
Sender: news@usc.edu
Reply-To: addison@pollux.usc.edu (Richard Addison)
Organization: University of Southern California, Los Angeles, CA
Lines: 87

In article <13920001@hpfelg.HP.COM> koren@hpfelg.HP.COM (Steve Koren) writes:
>My appologies if this has been discussed before; our site just began
>subscribing to comp.sys.amiga* yesterday.  If it has been discussed,
>could someone mail the thread to me?
>
>I have two questions.  One concerns tasks, the other conserns the
>console device.  I have lattice 5.02, if that matters.
 ...
>Question 2: (maybe easier!)
>
>I'm trying to put the console device in a RAW mode, such that I can
>read single characters from it without waiting for a newline.  I can
>turn off buffering in Lattice, but it still waits for a newline.
>I know that in Manx there is an stty() call; is there anything like that
>in Lattice?  I know I can read characters via IntuiMessage events, but
>it's important that I do it through the console device.  I can't find
>anything about this in the Lattice manuals, other than the function
>to turn off buffering.
 ...
>              - steve (koren@hpfela)

I can handle that one.  In fact I had to a few years back.  Should
still work:

#/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
#Human archive.  Cut here and figure it out yourself.  :-)
#\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/

/* For those of you who like prototypes: */

extern void SetConMode(long);



/* Includes needed for SetConMode: */

#include <exec/types.h>
#include <exec/exec.h>
#include <libraries/dos.h>
#include <libraries/dosextens.h>

#include <proto/exec.h>
#include <proto/dos.h>

#include <stdlib.h>
#include <stdio.h>


/* SetConMode
 *
 * This routine sets the console input mode to raw (for single character
 * input) or to cooked (passed through line editor, default).  Notice that
 * this requires AmigaDos version 1.2 or higher.
 */

void SetConMode(mode)
long mode;			/* -1: raw, 0: cooked */
{
  register struct Process *proc;
  register struct MsgPort *mp;
  register struct StandardPacket *spkt;

  proc = (struct Process *) FindTask(NULL);
  if (proc->pr_ConsoleTask)
  {
    if (mp = CreatePort(NULL,0))
    {
      if (spkt = (struct StandardPacket *)
       AllocMem(sizeof(struct StandardPacket),MEMF_CLEAR|MEMF_PUBLIC))
      {
	spkt->sp_Msg.mn_Node.ln_Name = (char *) &spkt->sp_Pkt;
	spkt->sp_Pkt.dp_Link = &spkt->sp_Msg;
	spkt->sp_Pkt.dp_Port = mp;
	spkt->sp_Pkt.dp_Type = ACTION_SCREEN_MODE;
	spkt->sp_Pkt.dp_Arg1 = mode;
	spkt->sp_Pkt.dp_Arg2 = (long) proc;
	PutMsg((struct MsgPort *) proc->pr_ConsoleTask,&spkt->sp_Msg);
	WaitPort(mp);
	(void) GetMsg(mp);
	FreeMem((char *) spkt,sizeof(struct StandardPacket));
      }
      DeletePort(mp);
    }
  }
}

/* Richard Addison, said the C program AUTHORatively. */