Multi-threaded signals are pretty dreadful, though. In a multi-threaded system, signals should be delivered on a separate thread, not via an existing thread get

Multi-threaded signals are pretty dreadful, though. In a multi-threaded system, signals should be delivered on a separate thread, not via an existing thread getting hijacked. That is basically the recommended way to handle signals in a pthreaded program - have one dedicated signal-handling thread that calls `sigwait()` in a loop, and block all signals in the signal masks of the other threads.