Reference for proper handling of PID file
- From: Ben Finney <bignose+hates-spam@xxxxxxxxxxxxxxx>
- Date: Mon, 13 Apr 2009 20:27:09 +1000
Howdy all,
Where can I find a well-respected reference that details the proper
handling of PID files on Unix?
I know about the concept of a PID file (a locking protocol for
programs as well as a PID API for the process holding the lock), and
some of the various issues that need to be resolved: how to actually
lock the file, platform incompatibilities, handling stale locks, when
exactly to acquire and release the lock, and so forth. These have many
solutions, each with their own merits and downsides.
The FHS briefly mentions PID files but without the above issues
<URL:http://www.pathname.com/fhs/pub/fhs-2.3.html#VARRUNRUNTIMEVARIABLEDATA>.
What I can't find is a good reference on expected or “good citizen”
behaviour for how a program that uses PID files should handle them well.
Where can I find a respected, most-authoritative reference (ideally on
the level of W. Richard Stevens, or as close as possible) for this
small topic?
--
\ “Pinky, are you pondering what I'm pondering?” “Well, I think |
`\ so (hiccup), but Kevin Costner with an English accent?” —_Pinky |
_o__) and The Brain_ |
Ben Finney
.
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