Ronald, Orestis, Here's a small script that reproduces the crash. Stock Python 2.6.1 (r261:67515, Jul 7 2009, 23:51:51), current twistd.
Background: an earlier version of my app uses CoreGraphics rather than Quartz and has been very reliable in twisted, python 2.3.5, OSX 10.4. CoreGraphics in 10.6 seems to have picked up some bugs (SImilar to: http://lists.apple.com/archives/quartz-dev/2009/Oct/msg00070.html ) I really want to move to Quartz, hence this attempt. Cheers, Erik #!/usr/bin/python """ This should test the interaction between a OSX Quartz call and twisted.web. To run, call the twistd binary with this script. On my machine, it lives here: /usr/bin/twistd -y twisted.quartz.test.py --pidfile quartztestpid.txt --logfile quartztest.log Then open the local host http:127.0.0.1:8080 Then wait for the crash report to pop up. """ from twisted.web import resource, server from twisted.internet import reactor from twisted.application import service, internet from Quartz import * import time rasterColorSpace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB) def _makeContext(size): width, height = size data = None bitsPerComponent = 8 numComponents = 4 bestByteAlignment = 16 bytesPerRow = width * (bitsPerComponent / 8) * numComponents bytesPerRow = ((bytesPerRow + (bestByteAlignment - 1)) & ~(bestByteAlignment - 1)) bitmapInfo = kCGImageAlphaPremultipliedLast # documentation says None should work data = None # some samples use a numpy object #data = numpy.zeros( ( height, width, 8), numpy.uint8) # other samples use a array.array object #data = array.array('B', (0 for i in xrange(width*height*8))) # here it goes context = CGBitmapContextCreate(data, width, height, 8, bytesPerRow, rasterColorSpace, bitmapInfo) return context # Just to show the context does work when used outside of twistd. # This returns something like: <CGContext 0x103713ca0> # Obviously, printing in this place won't work in twistd. #print "_makeContext all by itself", _makeContext((100,100)) class RootResource(resource.Resource): def render_GET(self, request): if not hasattr(self, 'count'): self.count = 0 self.count += 1 ctx = _makeContext((100,100)) return "OK %d %s"%(self.count, ctx) def getChild(self, name, request): return self port = 8080 site = server.Site(RootResource()) application = service.Application('QuartzTestApp') sc = service.IServiceCollection(application) i = internet.TCPServer(port, site) i.setServiceParent(sc) _______________________________________________ Pythonmac-SIG maillist - Pythonmac-SIG@python.org http://mail.python.org/mailman/listinfo/pythonmac-sig
