Re: [ROOT] Questions on threads under windows

From: Martijn Schellekens (Martijn.Schellekens@iota.u-psud.fr)
Date: Wed Jul 28 2004 - 12:42:05 MEST


Hi Valeriy,

Thank you very much, I'll give this a try. By the way: yes i did meant 
win32gdk :-)

Martijn

At 12:17 28/07/2004 +0200, Valeriy Onuchin wrote:
>Hi Martijn,
>
> > Hi rooters,
> >
> > Sorry for bothering you once more with this famous threads question: are
> > threads currently supported under windows (2000) with Root.
>
>  - do you mean win32gdk?
>
>  - do you mean TThread class under win32gdk? If it's so, TThread and co. 
> classes
>      in TODO list. IMO, this class must be rewritten in more general way
>     (without special purpose 
> http://root.cern.ch/root/htmldoc/TThread.html#TThread:XAction)
>
>  - you can use Win32 API to create threads inside compiled code.
>    There are two classes which provides thread safety under win32gdk
>    TInterpereter and TVirtualX.
>     For example, 
> at  http://root.cern.ch/root/htmldoc/src/TCanvas.cxx.html#TCanvas:Update
>     it's used as
>
>    if (!gVirtualX->IsCmdThread()) {
>       gInterpreter->Execute(this, IsA(), "Update", "");
>       return;
>    }
>
> > Or is there another way of having functions run in the background of Root.
>
>  - you can use TTimer class. http://root.cern.ch/root/htmldoc/TTimer.html
>    you can connect TTimer::Timeout signal to "worker" function wich would 
> do
>    something in "background"
>
>Regards. Valeriy
>
> > I tried to use the TROOT::ProcessLine() which is supposed to be
> > asynchronous under Windows but it does seem to block my root session
> > whatsoever: what is the definition of asynchronous then?
> >
> > Thank you very much,
> >
> > Martijn
> >
> >



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