I’m trying to debug some multithreaded code, but I can’t figure out how to tell
which NSThread I create corresponds to which thread in the Xcode debugger view.
In other words: my code creates an NSThread and sets its .name property. If I
get a description of the NSThread or log it in an NSLog, it describes itself as
e.g.:
<NSThread: 0x101020410>{name = MyGroovyThread, num = 5}
However, the Xcode debugger (and gdb, and ‘sample’, and the crash reporter)
show the thread with a different, larger number. As far as I can tell, the ‘num
=‘ in the NSThread’s description is simply a serial number incremented by
NSThread, and doesn’t correspond to the way the rest of the OS numbers threads.
(Why not?)
I was hoping that the ‘name’ property of the NSThread would show up in the
debugger, since it does display names with some threads. But it doesn’t. (Why
not?) How can I set a name that will show up in the debugger — do I need to use
the pthreads API for that?
—Jens
PS: This is one of those questions that might also belong in xcode-users, but
it seems more like the issue is with NSThread, not with Xcode.
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