2 Nov
2007
2 Nov
'07
4:23 p.m.
Anthony Williams:
As I understand it, with gcc on linux, pthread_cancel will run destructors and catch(...) blocks in the cancelled thread, but if the catch(...) block doesn't rethrow the exception, it is automatically rethrown at the end of the block
No, NPTL calls abort() if the catch block ends without a rethrow. There is a patch (by Jason Mitchell, I believe) that makes it not do that. There is no technical reason to make NPTL cancel appear to C++ code as an ordinary C++ exception, it's politics. Even so, NPTL is much, much better than any of the alternatives (except maybe OpenVMS where cancelation is an OS "structured exception").