[Lazarus] Can't copy TMemoryStream to TProcess.Input

[Leonardo M. Ramé]

On 2013-04-07 00:04:45 +0200, Michael Van Canneyt wrote:
> 
> 
> On Sat, 6 Apr 2013, Leonardo M. Ramé wrote:
> 
> >On 2013-04-06 13:22:39 -0300, Leonardo M. Ramé wrote:
> >>On 2013-04-06 17:46:06 +0200, Mattias Gaertner wrote:
> >>>On Sat, 6 Apr 2013 12:37:06 -0300
> >>>Leonardo M. Ramé <l.rame at griensu.com> wrote:
> >>>
> >>>>[...]
> >>>>>Check return value of Proc.Input.Write.
> >>>>>And call Proc.CloseInput when your input was written completely.
> >>>>>
> >>>>>
> >>>>
> >>>>Mmm, I'm getting the same result.
> >>>>
> >>>>I attached the new code.
> >>>
> >>>When you give Proc.Input.Write 200 bytes and it returns that the other
> >>>process could only process 100 of them. What bytes do you have to write
> >>>next?
> >>>
> >>
> >>Sorry, I'm not getting it. Which other process?, apart from that,
> >>Proc.Input.Write is always returning the sizeof(buffer) except when it
> >>reaches the end, where it can be less than it.
> >>
> >>It seems that the Proc.Input part is ok, aparently the Proc.Output is
> >>wrong :(
> >>
> >>I attached a slightly modified code.
> >>
> >
> >Finally got it working, I was forgetting to read the last part of the
> >Output stream. ...I still don't know why this last chunk of bytes
> >doesn't show up in NumBytesAvailable.
> 
> NumBytesAvailable is inherently unreliable. I didn't like it's addition.
> 
> You should never use it in critical code.
> 
> Michael.

Maybe that's why the same program doesn't work on FreeBSD?. What can I
use instead of it?.

-- 
Leonardo M. Ramé
http://leonardorame.blogspot.com