https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196951
Bug ID: 196951
Summary: Feature request: fix wait-built to allow waiting for
ANY process, not just the current shell's child
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: bin
Assignee: [email protected]
Reporter: [email protected]
Historical implementation of the wait-builtin of both sh and csh relied on
wait(2) (and/or friends), which only affords wait-ing for the current shell's
children.
However, for some time BSD's kevent(2)'s EVFILT_PROC has allowed monitoring any
visible process for the NOTE_EXIT -- a feature used by pwait(1) already.
I'd like the wait-builtin of our current base shells to be rewritten to make
use of the feature -- providing the same functionality the traditional
implementation offered (exit status), but allowing to watch a wider variety of
processes.
One immediate application of this will allow service-scripts (such as those
inside /etc/rc.d) to properly wait for the service stop before exiting or
starting it again.
I'd be happy to offer the necessary patches, but wish to secure the
acquiescence in principle first.
--
You are receiving this mail because:
You are the assignee for the bug.
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-bugs
To unsubscribe, send any mail to "[email protected]"
