Re: [gnet-dev] Cross-compiling gnet for win32 from linux

[Gorshkov <listsubscriptions oghma on ca>]

On Tuesday 07 March 2006 14:44, ben levitt wrote:
> Well, I now have cvs gnet compiling for windows, and my gtkmm app
> compiling with this gnet.  Everything now basically works (yay!), but
> I have a very strange bug.
>

Why did I know what you were going to say next as soon as I saw this .....

> My app runs a command-line server and some gui clients.  I'm using
> gnet tcp sockets.  I'm building and running with gtkmm as installed by
> the 2.8.3 installers.
>
> On each client, I set up a watch like this:
>       g_io_add_watch (io_channel,
>             (GIOCondition)(G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL),
>             &handle_event, data);
>
> If I drag a client's window accross the screen while gnet is
> communicating, hadle_event gets called with cond=0, and this client
> gets disconnected from the server.  This doesn't happen in a linux
> build, only in windows.  (My code is not doing anything
> network-related on window movement, resizing, redrawing, etc)
>
> I'm thinking this could have something to do with gnet events and
> window movement events brawling in glib's main loop.  But I haven't
> gone digging into glib at all yet. (Hoping not to...)
>
> Does this sound familiar to anyone?  Any idea what I could be doing
> wrong, or how I could fix/work around this?  Or if it might be a
> gnet/glib bug?
>

Yes, it sounds very familiar .... I ran into this myself not more than a month 
ago. The problem is, in fact, an interaction between glib/gtk/something there 
and gnet. I asked on the gtk-app-dev list, and all I got for asking about it 
was that my code was probably buggy because I must have written it in C .... 
not the most helpfull answer I ever found.

I eliminated the problem by dropping gnet, and using the windows network APi 
nativly, porting a simple connection library I had written years ago - I 
think it took a grand total of a half hour.

Basically, the native windows calls are based on the berkly sockets library, 
os if you'e done any network programming under unix/linux 
(socket/connect/send/receive et al), it's a trivial problem to write your 
own.

Hope this helps


CAVEAT: I *like* the gnet library, and would love to be using it ..... but 
given the interactions, it was easier to do without it than it was gtk.
> Thanks!
>
> Ben
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