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
next prev 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
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