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From: Dtcohen@aol.com
Message-ID: <0.5cf5cac9.25a3a930@aol.com>
Date: Tue, 4 Jan 2000 14:51:12 EST
Subject: Blocking I/O with Cygwin v1.0
To: cygwin@sourceware.cygnus.com
CC: Dtcohen@aol.com
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Dear Cygnus,

     A am running Cygwin v1.0 from the CD and have noticed that by
default I/O is non-blocked.  Shouldn't it be blocked by default,
and a call to fcntl() be required in order to set non-blocked mode?

     Example test program:

#include <stdio.h>

main()
{
    char Ch;

    Ch = getc(stdin);
    while (Ch != 'q') {
        putc(Ch, stdout);
        Ch = getc(stdin);
    }
}

     If I run this program and type in 12345678, on Cygwin B20.1
and on my Unix worstation I see the following on my screen:
12345678
12345678

     But if I try this with Cygwin v1.0 I get the following:
1122334455667788

     Could this possibly be fixed by stty?  If not, are fcntl() calls working
with v1.0?

P.S. This problem causes "bc" and "dc" to not accept backspaces (v1.0).


                Many thanks,

                Jim Grishaw.
                (dtcohen@aol.com)

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