EVFILT_SIGNAL - observe "standard" signals before they are delivered?
EVFILT_SIGNAL - observe "standard" signals before they are delivered?
- Subject: EVFILT_SIGNAL - observe "standard" signals before they are delivered?
- From: Jim Correia <email@hidden>
- Date: Wed, 5 Sep 2007 15:00:55 -0400
The man page says:
EVFILT_SIGNAL Takes the signal number to monitor as the
identifier and
returns when the given signal is delivered to
the process.
This coexists with the signal() and sigaction()
facili-
ties, and has a lower precedence. The filter
will record
all attempts to deliver a signal to a process,
even if the
signal has been marked as SIG_IGN. Event
notification
happens after normal signal delivery
processing. data
returns the number of times the signal has
occurred since
the last call to kevent(). This filter
automatically sets
the EV_CLEAR flag internally.
Am I interpreting that correctly to mean that a signal whose default
behavior is process termination (SIGSEGV, for example) will not be
observable by the kevent mechanism?
Thanks,
Jim
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