On 23 February 2012 08:06, Martin Schreiber wrote: >> BTW, _how_does it detect it? That might give clue as to when a change may >> get lost. According to Julio's reports, it seems that this happens >> perferentially if a change is made fast, like his external formatter. > > On Linux it uses signals on directory change by fcntl(dirfilehandle, > F_NOTIFY).
For my "experimental" IDE in fpGUI, I kept it simple and cross-platform. When a file is loaded or saved, I generate a reference SHA1 value. Then in the IDE I have separate thread running that rechecks the SHA1 value of the current open files. If a difference is found, the file is reloaded. My implementation is simple and can obviously be extended to support more features. It might not be as "optimal" as Linux signals or Windows whatever, but it was simple to implement, works consistently across all platforms, uses no noticeable CPU load, and has never failed to detect an external change yet. So if the bug really can't be found, or continues not to be reproducible by you, maybe this is an alternative file-change-detection implementation you can think of using. -- Regards, - Graeme - _______________________________________________ fpGUI - a cross-platform Free Pascal GUI toolkit http://fpgui.sourceforge.net ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ mseide-msegui-talk mailing list mseide-msegui-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mseide-msegui-talk
