> I have an application that uses SIGUSR1, but also POSIX threads. It
> appears (?) that the user-level POSIX threads now incorporated into
> FreeBSD 3.x use SIGUSR1 and SIGUSR2. Is this correct? If so, and I
> have a threaded application, what signals are still available for use?
No, the threads library that comes with 3.x/4.x does not use SIGUSR1
or SIGUSR2 for anything. It does use SIGPROF via setitimer for its
internal scheduling mechanism, and SIGINFO to dump thread information
(to aid debugging), but the other signals are available.
Perhaps you're confusing libc_r with LinuxThreads which also runs
under FreeBSD. I believe LinuxThreads uses SIGUSR1 and/or SIGUSR2.
Dan Eischen
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