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doc: note message event listeners ref IPC channels

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The IPC channel is referenced with the message event too.

PR-URL: https://github.com/nodejs/node/pull/11494
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
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Diego Rodríguez Baquero 2017-02-22 01:41:07 -05:00 committed by Sam Roberts
parent d42296bd98
commit 6eb614adc8
1 changed files with 3 additions and 3 deletions
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6
doc/api/child_process.md
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@ -572,9 +572,9 @@ spawn('prg', [], { stdio: ['pipe', null, null, null, 'pipe'] });
*It is worth noting that when an IPC channel is established between the
parent and child processes, and the child is a Node.js process, the child
is launched with the IPC channel unreferenced (using `unref()`) until the
child registers an event handler for the [`process.on('disconnect')`][] event.
This allows the child to exit normally without the process being held open
by the open IPC channel.*
child registers an event handler for the [`process.on('disconnect')`][] event
or the [`process.on('message')`][] event.This allows the child to exit normally
without the process being held open by the open IPC channel.*
See also: [`child_process.exec()`][] and [`child_process.fork()`][]