joyent/node — pull request #2458 by AndreasMadsen (2012-01-03 20:50:58+00:00)
Title: Allow namespace in messages when using child_process.fork 

When working with multiply modules there hook intro an process IPC channel, it is difficult to filter out all the noise from the modules. This patch add a namespace argument to the `.send` function allowing userland to easy filter out messages.

There is also added a `internalMessage` event is introduced in #2388 but work quite differently in this patch, since it do not require userland to think about `NODE_` prefixes in there messages.