[lug] [Sorta-OT] Linux->Solaris Porting Bug

[Hugh Brown]

On Mon, 2003-09-15 at 17:29, David Morris wrote:
> Appologies for the (mostly) OT post, but I'm getting close
> to my wits end on a bug:
> 
> I'm porting an application I wrote from Linux (x86) to
> Solaris 8 (sparc).  Everything works just fine with only
> linking changes with one exception:  I cannot redirect
> output from the program.  For example:
> 
>     a.out > foo.txt
> 
> The file "foo.txt" is empty.  The application is (I think)
> at least partially running, but it definately is not at full
> functionality (has several network connections and keyboard
> input to test with).
> 
> A few items of note:
> 
> - compiler is gcc 3.1
> - multi-threded using pthreads
> - stdio routines for i/o (e.g. printf)
> - 7 active TCP/IP communication sockets.
> - A test program (print ("hello world\n");) works normally
> 
> Has anyone come accross a problem like this before, or have
> any ideas on where to look for possible problems?
> 
> --David
> 

I am not a programmer by any stretch of the imagination, but I have had
problems of this sort when file i/o was buffered.  I had to have enough
data to write out before anything actually got written.  Usu. there is a
way to flush the write buffer or to do unbuffered i/o.

FWIW,

Hugh