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From: Tijl Coosemans <tijl@ulyssis.org>
To: freebsd-threads@freebsd.org
Date: Fri, 9 Mar 2007 15:15:25 +0100
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Subject: signalling remote threads
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Is it somehow possible to send a signal to a specific thread in
another process similar to the linux tkill and tgkill syscalls?

I've seen the thr_kill call that takes an lwpid as argument, but it
can't send a signal to another process can it?