[fpc-devel] Output flush on pipes

[Martin Schreiber]

On Monday 15 May 2006 07.29, Daniël Mantione wrote:
> Op Mon, 15 May 2006, schreef Martin Schreiber:
> > On Sunday 14 May 2006 20.17, Florian Klaempfl wrote:
> > > Martin Schreiber wrote:
> > > > The problem exists not only for the compiler but for all console
> > > > programs. I found no way to display the interactive output in a IDE
> > > > window on win32. On Linux I can use a pseudo terminal to get flushed
> > > > output from target. There are no pseudo terminals on win32, I must
> > > > use pipes. The current 2.0.3 RTL does not flush output on writeln if
> > > > the filehandle is a pipe (2.0.2 does!). So the IDE target console
> > > > window is unusable on win32 with FPC 2.0.3 RTL and works OK with FPC
> > > > 2.0.2 RTL.
> > >
> > > Yes and no :) That's one of speed vs. usability decisions. Believe me,
> > > if flush pipes always, people will complain soon that FPC is too slow
> > > when writing to pipes.
> >
> > How do FPIDE and Lazarus solve the problem?
>
> The IDE retrieves the messages through the comphook unit.

And the output from a console program as debuggee?