Author: dattier(_at_)wwa(_dot_)com (David W. Tamkin)
Original-Date: Tue, 6 Jan 1998 16:21:20 -0600 (CST)
Message-ID: <m0xphNB-000k3wC(_at_)miso(_dot_)wwa(_dot_)com>
Three major reasons for not using a local lockfile:
1. the recipe saves to a directory rather than to a plain folder; or
2. the recipe's action does not modify any files (it opens a brace nest,
for example, or it does filtering or variable capture, or it dumps
the message to /dev/null), so it is safe for it to operate on two or
more messages at the same time; or
3. a global or regional lockfile is in effect at that point.
4) you are piping to a program which does its own locking
TjL