[MiNT] Fpoll() in GEM programs (was: Re: Wheel support in XaAES)

[Standa Opichal <opichals@seznam.cz>]

Hi! 

> Since we wanna add fselect()/fpoll()  
> functionality via evnt_multi() perhaps an extended version of evnt_mult() 
> is in place?

I think I find a better way then the one with extending AES... We can create 
AES event_multi pipe (e.g. U:\pipe\$PID\event_multi) for each GEM 
application in XaAES so that the only thing the application needs to use is 
the Fpoll() to detect activity. 

Piece of pseudo code to explain: 

# main application loop
while(1) {
  # wait for an event on several filedescriptors
  Fpoll( /pipe/$PID/event_multi, /pipe/fsel, /pipe/xxx ); 

  # take an action according to the type of event
  switch ( which_pipe ) {
      case event_multi:
         use event_multi() as in every other GEM app.
      case fsel:
         handle pipe comunication
      case xxx:
         ...
  }
} 

This seems to me a better way to get the GEM applications capable of using 
UNIX sockets and other things without being forced to create separate child 
processes mainly because it would be backward compatible in terms of AES 
API. 

Opinions? 

STanda