Hi, all. There's been a recent exchange on the Tor development list about the intersection of signals with pthreads with libevent. Both posts are (I hope) concise, so I'll link to them here: http://archives.seul.org/or/dev/Feb-2007/msg00028.html http://archives.seul.org/or/dev/Feb-2007/msg00030.html
In summary: when pthreads are in use, it's wrong to call sigprocmask(), and right to call its identical cousin, pthread_sigmask(). This isn't just a cosmetic issue; it can cause real bugs with signal delivery. Right now, libevent only calls sigprocmask. It would be good if there were some way to tell libevent, "I'm going to use pthreads; use pthread_sigmask() instead of sigprocmask()." I don't know what that interface should be, but the corresponding code should be pretty simple to write. yrs, -- Nick Mathewson
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