On 10/02/2014 07:25 AM, Martin Schreiber wrote: > > MSEgui supports event driven non-GUI applications. We have been discussing this since years ;-) . The (strictly closed) TThread implementation in the fpc RTL prevents an (easy) implementation of this (i.e. without creating a second Event Queue working in parallel with the Event Queue provided by TThread).
My attempts to discuss this in fpc-develop seem to be considered opening a can of worms :-( . (In fact - IMHO - also existing Lazarus Widget Types could benefit from directly using the Event Queue in the RTL instead of doing their own parallel queues.) Nonetheless since the (not yet released) TThread implementation in the svn finally provides the Delphi compatible (since Delphi 7 or so) TThread.Queue procedure, I was able to do a draft for the "Interface" unit providing the TApplication and TTimer objects for an "active non-GUI" (nearly) fully LCL-compatible "widget type". In fact, this is a rather lightweight and easy thingy. It does not contain any arch or OS depending code. Finally. A more versatile TThread implementation could provide an (optional) Event Queue instance (plus the appropriate "main Loop) for each thread, allowing event driven programming for worker threads. (Right now the Event Queue is strictly a single "Class" thingy doing the Event Queue only for the Main Thread. ) IMHO, Event Queue enabled worker threads might be a nice base for providing "parallel loop" or similar language/library constructs to support easy-to-use speeding up certain applications in SMP. (Does mse support Event Queues for worker threads ? ) (I did this only for fun and for research. I don't really need it any more, as my colleagues seemingly will never find the time to port their (huge) embedded Delphi projects to Linux using fpc.) -Michael ------------------------------------------------------------------------------ Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk _______________________________________________ mseide-msegui-talk mailing list mseide-msegui-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mseide-msegui-talk
