[pygtk] centralized multiple instances of a pygtk app

[Pietro Battiston]

Il giorno gio, 31/03/2011 alle 20.27 +0200, Pietro Battiston ha scritto:
> Il giorno gio, 31/03/2011 alle 20.01 +0200, Giuseppe Penone ha scritto:
> >         
> >         (Assuming that indeed there's no way of using sockets in a
> >         non-blocking
> >         fashion - I'm totally ignorant about that) maybe having a
> >         little process
> >         created with multiprocessing would be simpler & more portable,
> >         for you,
> >         than using threading? I guess a single one is sufficient, so
> >         the
> >         overhead shouldn't be significant, even on Windows. Then, at
> >         every
> >         iteration of the main loop, the main process could check, from
> >         a shared
> >         Value (or Array), if there's something to open.
> >         
> >         (untested, sorry if I wrote something stupid)
> > 
> > Hi Pietro,
> > the problem of having a single and independent process dedicated to
> > the job of server is that the server would not be able to rise a
> > minimized/hidden window as consequence of the situation "a new file
> > open starts (user double click) unaware that the same file is already
> > opened".
> 
> 
> The server should not, that would be the job of the main process...
> 
> User: "Hey, program, open that file"
> Main process1: starts, spawns the server through the multiprocessing
> module
> Server1: "Hey, main process, there is no open instance, have fun"
> Main process1: "thanks", opens the file in a new window
> 
> later...
> 
> User: "Hey, program, open that file"
> Main process2: starts, spawns the server through the multiprocessing
> module
> Server2: "hey, Main process2, there is an already open instance!"
> Main process2: "OK, tell it to open that file!"
> Server2: "Server1, could you please tell you friend Main process to open
> that file?"
> Server1: "Sure, Server2!"
> (Main process2 & Server2 exit)
> Server1: "Hey, Main process2,

Sorry Server1, but that's Main process1.

Pietro