Re: Timers

[G Hasse <gh raditex se>]

On Tue, 29 May 2001, Ian Frawley wrote:

> Hi
>
> I am trying to develop an application on Linux. This application has a
> GUI which I have implemented using GTK written in C++. The problem is
> that I have to periodically poll another application so a timer widget
> or something would be great but I don't think timers exist. Hopefully
> I am wrong and someone could point me in the right direction.

You should *never* need to poll something. When the other application
have information to you it should send it on a file descriptor
(or socket).

You could then decide if you whant that information or disregard it.

In your application you do something like

gdk_input_add( mySocket, GDK_INPUT_READ, GTK_SIGNAL_FUNC(file_function),
&cmdinfo );

where mySocket is the socket (or filedescriptor).

Don't use poll. You don't need it.

Göran Hasse


> Any help would be greatly appreciated
>
> Thanks in advance
>
> Ian Frawley
> Software Engineer
> Opal Telecom
> Tel: 0161 222 2122
> E-Mail: ifrawley opaltelecom co uk

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