Re: gtk_input_add (posted earlier with wrong subject)

[Johan Ankarloo <johan ankarloo volvo com>]

Ok.

Do you have any suggestions on how i should implement this?

An example would be great.

- Johan

On Thu, 2002-04-04 at 17:03, Bhaskar S. Manda wrote:
> Hi there,
>
> > I have tried to ways to use input_add.
> > 1. Open a file for read and send in the filehandle to input_add.
> >    Here i never gets any calls to my function at all.
> > 2. open a file and use fileno( filehandle ) as an input to input_add.
> >    Here the callback gets called all the time without any new data in
> > the file to read.
> > Anybody who understand how to use input_add on a ordinary filhandle?
> > Please give me an short example.
>
> I've used input_add to 1) read from a pipe that is 'tail -f <somefile>' and 2)
> read from an IO::Socket::INET. In both cases, the filehandle that input_add
> listens to has something new to read at different points in time, that is, if
> that handle is in an IO::Select, it becomes ready to read from. I'm not sure
> that such a state change is occurring in the file handles your input_add is
> watching.
>
> Let's assume for a moment that there is such a change, then I believe
> input_add is using a select() somewhere in its implementation, so you can't
> use the angle operators <>, you have to use sysread() in your input handler to
> read from the file handle. I've run into the kinds of error conditions you
> described when using <> on handles which are already in select().
>
> -bhaskar
>
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-- 
Mvh

Johan Ankarloo
Volvo IT
Network & Security Engineer
Tel: +46 31 32 128 18

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