November 2006 - graphic-forms-devel@common-lisp.net

[graphic-forms-devel] SLIME and SBCL issues
by Jack Unrue 05 Nov '06

05 Nov '06

I've been investigating a problem where starting a Graphic-Forms app from within SLIME using the SBCL backend results in seemingly nothing but a hang. What appears to be happening is that the message loop in GF is not even getting past the first call to the Windows get-message function. I fired up Winspector Spy, which is a utility for inspecting the window hierarchy, and saw that application windows are getting created. But since no messages are getting processed (except for maybe the very initial WM_NCCREATE or WM_NCCSIZE), the windows don't appear and obviously are non-functional. This problem has something to do with the combination of SLIME and SBCL, since CLISP and SLIME work together ok as fas as GF is concerned. Also, running SBCL from a command prompt works, albeit that's not nearly as nice an environment. So there are a couple workarounds right now (both assuming that you want to use SLIME, rather than the LispWorks IDE). The first is to switch to CLISP at least for the time being, as this is a configuration that works fine. The second is to run SBCL from a command prompt. It's important to keep in mind that SBCL/Win32 is currently still a single-threaded Lisp like CLISP is, so in both cases, the SLIME REPL would be queueing requests until the message loop exits. When we see multi-threading support appear in those Lisps, then hopefully we can get back our REPL while our GF apps are running. I've sent a query to the slime-devel list in the hopes of getting some pointers to possible solutions, and I will continue to investigate this problem myself as time allows. -- Jack Unrue

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[graphic-forms-devel] updated fixes for loading the system
by Jack Unrue 05 Nov '06

05 Nov '06

Please find attached an updated set of fixes for loading the library and the test programs. I've fixed some confusion in the initialization of the gfsys::*gf-tests-dir* variable. I've verified (again) that the procedure documented in the top-level readme works. Also, the file extensions may be getting munged for these attachments. The files are: graphic-forms-tests.asd config.lisp tests.lisp all of which go in the top of the installation directory. -- Jack Unrue

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[graphic-forms-devel] fixes for the config and loading process
by Jack Unrue 01 Nov '06

01 Nov '06

Mea culpa. I have not been adequately testing the configuration and loading process documented in the top-level README, and have found to my chagrin that it was badly broken. I will stop using my private build.lisp to help make sure this doesn't happen in the future. Please find attached replacements for files in the Graphic-Forms source distribution. The procedure documented in the README is still valid. My apologies to anyone that has tried to experiment with GF and been stymied by these mistakes. Thanks to Mark Haniford for his problem reports. -- Jack Unrue

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