On 2015-02-11 21:31-0000 Phil Rosenberg wrote: > @Alan
> The wxWidgets driver is nearly done now. That is excellent news. > The last part is just putting posix named semaphores in where I have used windows named mutexes. So I have a few questions > 1) Do you want another patch to try before I commit to the repo. Yes, I am in a position to give it a through testing on a Linux platform (Debian stable) you don't have access to so we might as well take advantage of that immediately. Also, it looks like you and Jim are going to end up in a virtual tie for getting wxwidgets and plbuf done so the topic branch commits you send to me to test should include all his commits as well. > 2) when I commit do you need me to condense the (considerable) number of commits in my private repo. Short answer is no. Note I have withdrawn my old argument about every commit being buildable on the master branch since git-bisect scripts can avoid that case automatically. So the only real constraint on commits is you should try hard to keep master tip buildable (as a convenience to others who are using master tip as well). So I think the answer is you don't need to try squashing the commits on your topic branch. For example, I have not used that git functionality so far. > 3) as mentioned above. I am using Posix named semaphores which I think only became available in kernel version 2.6.something. Do you know if there is a way to check for them in CMake? If it is easy for you to do I'd really appreciate that contribution as you know cmake so much better than me. Sorry, I don't know how to check for that kernel functionality, but I don't think we need to worry about it; <http://www.linuxdevcenter.com/pub/a/linux/2007/05/24/semaphores-in-linux.html?page=1> is an article describing the functionality that is dated 2007-05-24 so this functionality was introduced into Linux before that date and therefore it has been available for Linux for a very long time. > 4) There is reference to pls->LocateEH() in the old wxWidgets driver, however, searching with fgrep -Rl LocateEH I only found this in plstrm.h, tek.c, tk.c and xwin.c, so I assume this callback is defunct? If you know otherwise let me know. Not defunct, just untested. The xwin device is the definitive one concerning cursor interaction so I looked up LocateEH there, and it appears all this means is that the xwin device supports the possibility of a user-supplied user locate mode handler, and I can see no harm to continue supporting that possibility for the wxwidgets device driver. Of course, our current set of examples and tests does not include a test of a user-supplied locate mode handler, but I think that omission should be rectified (as a low priority in e.g., examples/c/x01c.c when locate mode is turned on) rather than dropping support of user locate mode handlers in wxwidgets or other interactive devices. I do realize other interactive devices such as xcairo have ignored this possibility, but if/when we include the capability in example 1 it would also be straightforward to add in this interactive capability for every interactive device that doesn't currently support this possibility. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Plplot-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/plplot-devel
