Multi-threaded opengl or view access crashes system?
Multi-threaded opengl or view access crashes system?
- Subject: Multi-threaded opengl or view access crashes system?
- From: Theo Vosse <email@hidden>
- Date: Fri, 21 Oct 2005 12:13:41 +0200
Hi,
My system (latest stock iBook w/Tiger) completely blocked while I was
resizing a window with an NSOpenGLView. At the same time, a thread
was (probably) trying to updating the view's content (I have a lock
in the drawing routine to make sure that the threads don't
interfere). If the application would have locked up at this point, I
would have blamed my use of NSLock, but as it happened, the whole
system blocked. The last messages in system.log (before the forced
reset) contain about 300 of CGContextSetFontSize (-SetFont, -
TextMatrix, all font related) messages claiming an invalid context,
although I don't call any of these functions, although I do do a few
CGContext line drawing calls elsewhere. Does anyone have an idea as
to what's happening?
Theo
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