Are calls to signal() done across all threads?
Are calls to signal() done across all threads in a process? Or do you have to call signal for each signal you want to catch per 开发者_运维技巧thread?
Thanks, Chenz
According to this link on "Requirements of the POSIX signal model",
The basic concept behind the POSIX signal model is that
signal handlers are a process resources; and
signal masks are a thread resources
In other words, there can only be a single signal handler (for a particular signal) defined for the process, but you must set the signal mask in every thread.
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