All of lore.kernel.org
 help / color / mirror / Atom feed
From: Progga <abulfazl@juniv.edu>
To: linux-c-programming@vger.kernel.org
Subject: Re: getch()
Date: Fri, 8 Nov 2002 15:04:01 +0600	[thread overview]
Message-ID: <200211081504.01461.abulfazl@juniv.edu> (raw)
In-Reply-To: <20021107200436.C1136@neutrino.particles.org>


> 	tcgetattr(STDIN_FILENO, &attrib);
> 	attrib.c_lflag &= ~(ICANON|ECHO); /* disables canonical mode, echo */
> 	attrib.c_cc[VMIN] = 0;            /* non-blocking input */
> 	attrib.c_cc[VTIME] = 0;
> 	tcsetattr(STDIN_FILENO, TCSAFLUSH, &attrib);

 Thanks all for the super suggestions. I only had to change one line for 
getting what I need :

 > 	attrib.c_cc[VMIN] = 0;            /* non-blocking input */
to
 	attrib.c_cc[VMIN] = 1;            /* blocking input */

 If input is taken in non-blocking mode then something like:

  while( read( STDIN_FILENO, &ch, 1 ) != 1 ) ;

  needs to be used. It's also OK. But to use getchar()/cin, using blocking 
mode appeared the most suitable. So I did the change. The chance to control 
the echo and nonecho mode is another beauty. I needed the nonecho and it was 
already in the code. Thanks again from me and my friend Mahbub.

 Khoda Hafez 
 Progga


  parent reply	other threads:[~2002-11-08  9:04 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200211071046.24987.abulfazl@juniv.edu>
2002-11-07 15:35 ` getch() Progga
2002-11-07 18:04   ` getch() Elias Athanasopoulos
2002-11-07 17:19     ` getch() Glynn Clements
2002-11-07 20:58       ` getch() Elias Athanasopoulos
2002-11-08  9:04     ` Progga [this message]
2002-11-08 17:51       ` getch() Glynn Clements
2002-12-05 12:17 ` defining a #define Christopher Quinn
2002-12-05 13:22   ` Miguel Griffa
2002-12-05 13:36 ` Christopher Quinn

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200211081504.01461.abulfazl@juniv.edu \
    --to=abulfazl@juniv.edu \
    --cc=linux-c-programming@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.