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From: markm@mcrware.UUCP (Mark Millard)
Newsgroups: comp.sys.amiga.tech
Subject: More Questions About Using raw/cooked
Message-ID: <2545@mcrware.UUCP>
Date: 27 Aug 90 17:51:41 GMT
Reply-To: markm@mcrware.UUCP (Mark Millard)
Organization: Microware Systems Corp., Des Moines, Iowa
Lines: 73


I have a few questions concerning the usage of Chuck McManis's "raw"
and "cooked" utilities (recently re-posted).

I was wondering if it is possible to combine the raw mode with
waiting for signals on stdin's message port.  I modified Chuck's
testraw program to do the following:

   void main()
   {
       struct FileHandle *stdin_fh;
       struct UFB        *stdin_ufb;
       struct MsgPort    *readport;
       ULONG             signals,readsig;

       /* get message port for stdin */
       stdin_ufb = (struct UFB *) chkufb(fileno(stdin));
       stdin_fh  = (struct FileHandle *) (stdin_ufb->ufbfh);
       readport  = ((struct FileHandle *) (BADDR(stdin_fh)))->fh_Type;

       /* set stdin to CBREAK mode */
       if (raw(stdin) != 0) perror("raw");

       /* gather and dispatch input */
       readsig = 1 << readport->mp_SigBit;
       signals = Wait(readsig);

       if (signals & readsig) {
           /* read input here */
       }

       /* reset stdin back to normal */
       if (cooked(stdin) != 0) perror("raw");
   }


What happens is that "Wait" never returns.  Is the signal valid in raw
mode?  If I replace the "gather and dispatch input" segment with


       infh = Input();
       ok = WaitForChar(infh,1000000);
       if (ok)
           read(fileno(stdin),buffer,1);


It seems to work fine.  However, this is not what I want since eventually
I want to wait for input from other sources (i.e. intuition windows).
How can I do this?  Is there something similar to UNIX's "select()"
mechanism which somebody can help me with?


My second question concerns Chuck's testraw program and using "fputc()"
or "putc()".  I modified his while loop to be


       while ((c = fgetc(win)) != 'Q') {
           i = (i + 1) % 25;
           if (i == 0 ) fputc('\n',win);
           fputc(c,win);
       }


"fputc" put it somewhere, but not in the console device.  The same was
true with "putc".  Has anybody else tried this?


Thanks for any help you can provide.

Mark Millard
Microware Systems Corp.
email: sun!mcrware!markm
phone: (515)-294-1929