Ian, I noticed that when compiling FLTK 1.1.10 in Solaris and Mac OS X 10.5, the ./configure file issues THREADS=NO.
I am curious whether this will have an impact on reimplementing the editor. Alexander > > > yes, opening a separate `Lua` thread would be fine. I=20 > > sometimes notice that when executing Lua code, the=20 > > programming language output window and the editor window do=20 > > not respond to anything for some seconds. > > That was my worry - with everything in a single thread, the fltk widgets > will be unresponsive whenever the lua sections are working, so unless > you can arrange for the lua code to "pump" the fltk loop quite often, it > can make your app appear unresponsive. > > You probably need to pump the fltk loop at around 15 to 20 times per > second to keep things looking responsive to the typical user. > > If you can put the lua code into a subsidiary thread, then it becomes > the OS responsibility to keep both threads responsive... > > > Thanks for the idea - I will try to implement it. > > OK - there are some notes in the fltk-1.1.x docs about threading, but if > the main thread has all the fltk stuff in it, and the child thread has > all the lua stuff in it, you probably do not even need to deal with > thread synchronisation (i.e. if there are no fltk widgets accessed > directly in the lua thread, then you do not even have to use the > Fl::lock() and Fl::unlock() methods to sync the threads.) > > The other thing I'd note is that it is better if the bulk of the fltk > code is in the "main" thread, as some platforms are sensitive to > accessing the graphics device from a subsidiary thread... In particular, > creating and deleting windows should be done in the main thread, as some > hosts will get confused if windows are created/deleted from a subsidiary > thread. (Though more recent OS versions are getting better at coping > with this, it seems!) > > > > > SELEX Galileo Ltd > Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS= > 14 3EL > A company registered in England & Wales. Company no. 02426132 > ******************************************************************** > This email and any attachments are confidential to the intended > recipient and may also be privileged. If you are not the intended > recipient please delete it from your system and notify the sender. > You should not copy it or use it for any purpose nor disclose or > distribute its contents to any other person. > ******************************************************************** > _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
