Re: [MiNT] Multithreaded apps

["Arnaud BERCEGEAY" <arnaud.bercegeay@free.fr>]

Hello,

> What is the best (most efficent preformancewise on app and OS level) way  
> of doing multithreaded application where each thread could be able to do  
> file/socket IO and be GEM friendly?

It's a good question... which i don't know any simple answer to.

IMO, the best way to have multithread AES friendly application is to use  
the AES call mt_shel_write(20) to create a thread:
The main thread may do all the AES stuff (GUI), and when a new thread has  
to be created, then the main thread call mt_shel_write(20). This new  
thread may do file/socket I/O stuff (loop based on Fselect).

... BUT you need a thread safe libc, so you should not use mintlib. Or in  
your I/O thread, you have to use only gemdos functions (Fopen, Fclose,  
Fselect...) and never libc functions (fopen, fclose, select...).

Another idea: create 2 applications :

1st application: do the GUI stuff, based on evnt_multi() loop. Get  
informations from the I/O application thru AES messages (caught by  
evnt_mutli), and send informations to the I/O application thru a pipe.

2nd application: do the I/O stuff, based on select() loop. Get  
informations from the GUI thru a pipe (presence of the msg caught by  
select), and send informations to the GUI thru AES messages.

Hope this help...

best regards,
Arnaud.