Re: asynchronous process management on WinWP; buffering problem?

[Lennart Borgman]

Jason Rumney wrote:
> Lennart Borgman <address@hidden> writes:
>
>   
> > Can Emacs then tell _isatty that it is a terminal? Or what does Emacs
> > do to handle this?
> >
> >
> > Note: It looks like the POSIX name now is _isatty.
> >     
>
> Probably not on Windows, since windows isn't POSIX and any POSIX layer
> that MingW32 has is unlikely to add functionality that is not already
> possible through other Windows APIs. On Windows stdout uses completely
> different API calls than console I/O.
>   
It actually seems like is _isatty is defined in MinGW. I just tested a 
small program I found here:

   http://permalink.gmane.org/gmane.comp.gnu.mingw.msys/448

   #include <stdio.h>

   int main(int argc, char *argv[])
   {
     if (isatty(fileno(stdin)) && _isatty(fileno(stdout)))
       printf("interactive\n");
     else
       printf("batch\n");
     return 0;
   }

If I run this program in cmd.exe it says "interactive". I get the same 
result under MSYS and Cygwin. However running it in Emacs in shell:

   M-x shell

it instead says "batch". (This is in the CVS version of Emacs.) Is this 
what is expected?