| Provides some nice command-line stack operations. This nail must
have the aliases "push" and "pop" associated with it in order to
work properly.
If the "push" command is used, each argument on the command line
is pushed onto the stack (in order) and the program returns
immediately.
If the "pop" command is used, the top item on the stack is displayed
to the client's stdout. If the stack is empty, the client will
block until another process calls push. If the nailgun server is
shutdown while pop is blocking, pop will cause the client to exit
with exit code 1. This is thread-safe: you can have multiple
clients waiting on "pop" and only one of them (determined by the VM
and the magic of synchronization) will receive any one pushed item.
author:
Marty Lamb |
