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Commit Graph

27 Commits

Author SHA1 Message Date
James M Snell
62e96096fa lib: more consistent use of module.exports = {} model
Switch to using the more efficient module.exports = {}
where possible.

PR-URL: https://github.com/nodejs/node/pull/11406
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
2017-02-22 08:56:08 -08:00
Arseniy Maximov
8fc362ea98 child_process: refactor internal/child_process.js
* Prefer === to == where possible
* Remove condition that will always be false
* Prefer for-loop statements to forEach where possible for perfomance reasons

PR-URL: https://github.com/nodejs/node/pull/11366
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
2017-02-18 19:59:37 +01:00
Jackson Tian
f9dc722eb5
child_process: move anonymous class to top level
Move the anonymous class out of setupChannel to clarify code.

PR-URL: https://github.com/nodejs/node/pull/11147
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2017-02-16 21:49:50 +01:00
Yuya Tanaka
92eadd3037
child_process: optimize IPC for large data
Squashed from:
- child_process: stop indexOf() on whole IPC buffer
- child_process: get rid of forEach() and slice() in IPC
- child_process: get rid of another forEach() in IPC

Fixes: https://github.com/nodejs/node/issues/3145
PR-URL: https://github.com/nodejs/node/pull/10557
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2017-01-16 06:42:24 +01:00
Anna Henningsen
627ecee9ed child_process: support Uint8Array input to methods
Support `Uint8Array` input to all the synchronous methods.

PR-URL: https://github.com/nodejs/node/pull/10653
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michal Zasso <targos@protonmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
2017-01-10 11:35:45 -08:00
cjihrig
2dcb7f3826 child_process: add public API for IPC channel
This commit adds a public channel property to ChildProcess. The
existing _channel property is aliased to the new property, with
the intention of deprecating and removing it in the future.

Fixes: https://github.com/nodejs/node/issues/9313
PR-URL: https://github.com/nodejs/node/pull/9322
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
2016-11-01 20:37:57 -04:00
Rich Trott
a6b1f175c2 tools: fix new-parens violations
PR-URL: https://github.com/nodejs/node/pull/8478
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-09-12 21:11:35 -07:00
cjihrig
ccbb3c78cd child_process: reuse existing no-op function
The internal/child_process module has an existing no-op
function. This commit utilizes that function, instead of
creating extraneous closures.

PR-URL: https://github.com/nodejs/node/pull/8164
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Claudio Rodriguez <cjrodr@yahoo.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
2016-08-20 16:24:44 -04:00
Santiago Gimeno
db6253f94a child_process: workaround fd passing issue on OS X
There's an issue on some `OS X` versions when passing fd's between processes.
When the handle associated to a specific file descriptor is closed by the sender
process before it's received in the destination, the handle is indeed closed
while it should remain opened. In order to fix this behaviour, don't close the
handle until the `NODE_HANDLE_ACK` is received by the sender.
Added `test-child-process-pass-fd` that is basically `test-cluster-net-send` but
creating lots of workers, so the issue reproduces on `OS X` consistently.

Fixes: https://github.com/nodejs/node/issues/7512
PR-URL: https://github.com/nodejs/node/pull/7572
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2016-08-20 10:58:28 +02:00
cjihrig
d59917b2a3 child_process: emit IPC messages on next tick
Currently, if an IPC event handler throws an error, it can
cause the message to not be consumed, leading to messages piling
up. This commit causes IPC events to be emitted on the next tick,
allowing the channel's processing logic to move forward as
normal.

Fixes: https://github.com/nodejs/node/issues/6561
PR-URL: https://github.com/nodejs/node/pull/6909
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
2016-05-24 12:20:57 -04:00
James M Snell
dcccbfdc79 src: refactor require('constants')
The require('constants') module is currently undocumented and mashes
together unrelated constants. This refactors the require('constants')
in favor of distinct os.constants, fs.constants, and crypto.constants
that are specific to the modules for which they are relevant. The
next step is to document those within the specific modules.

PR-URL: https://github.com/nodejs/node/pull/6534
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Robert Lindstaedt <robert.lindstaedt@gmail.com>
2016-05-17 11:05:18 -07:00
cjihrig
e854f60585 child_process: add keepOpen option to send()
This option allows an instance of net.Socket to be kept open in
the sending process.

Fixes: https://github.com/nodejs/node/issues/4271
PR-URL: https://github.com/nodejs/node/pull/5283
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2016-02-22 11:55:30 -05:00
cjihrig
1952844f45 child_process: support options in send()
This commit adds an options object to process.send(). The same
object is propagated to process._send(), the _handleQueue, and the
send() and postSend() functions of the handle converter.

Fixes: https://github.com/nodejs/node/issues/4271
PR-URL: https://github.com/nodejs/node/pull/5283
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2016-02-22 11:53:38 -05:00
Brian White
12274a5c1b child_process: fix data loss with readable event
This commit prevents child process stdio streams from being
automatically flushed on child process exit/close if a 'readable'
event handler has been attached at the time of exit.

Without this, child process stdio data can be lost if the process
exits quickly and a `read()` (e.g. from a 'readable' handler)
hasn't had the chance to get called yet.

Fixes: https://github.com/nodejs/node/issues/5034
PR-URL: https://github.com/nodejs/node/pull/5036
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-02-11 10:47:36 -05:00
Fedor Indutny
6712a1faa5 internal/child_process: call postSend on error
Call `obj.postSend` in error case of `process.send()`. The
`net.Socket`'s handle should not be leaked.

Note that there are two callbacks invoked on handles
when they are sent to the child process over IPC pipes.
These callbacks are specified by `handleConversion` object, and
during send two of them are invoked:

  * `send`
  * `postSend`

Now for `net.Socket` in particular, `postSend` performs clean up by
closing the actual uv handle. However this clean up will not happen in
one of the branches. This pull request aims to fix this.

PR-URL: https://github.com/nodejs/node/pull/4752
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-01-22 13:27:18 -05:00
Michaël Zasso
7ce0e04f44 lib: fix style issues after eslint update
With an indentation style of two spaces, it is not possible to indent
multiline variable declarations by four spaces. Instead, the var keyword
is used on every new line.
Use const instead of var where applicable for changed lines.

PR-URL: https://github.com/nodejs/io.js/pull/2286
Reviewed-By: Roman Reiss <me@silverwind.io>
2016-01-13 23:16:05 +01:00
Rich Trott
57a51a00e8 child_process: guard against race condition
It is possible that the internal hnadleMessage() might try to send to
a channel that has been closed. The result can be an AssertionError.
Guard against this.

Fixes: https://github.com/nodejs/node/issues/4205
PR-URL: https://github.com/nodejs/node/pull/4418
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>
2015-12-27 13:10:28 -08:00
Dave
34b535f4ca child_process: flush consuming streams
When a client calls read() with a nonzero argument
on a Socket, that Socket sets this._consuming to true.
It never sets this._consuming back to false.
ChildProcess.flushStdio() currently doesn't flush
any streams where _consuming is truthy. But, that means
that it never flushes any stream that has ever been read from.
This prevents a child process from ever closing if one of
its streams has been read from, causing issue #4049. This
commit allows consuming streams to be flushed, and the
child process to emit a close event.

Fixes: https://github.com/nodejs/node/issues/4049
PR-URL: https://github.com/nodejs/node/pull/4071
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2015-12-01 09:55:35 -05:00
micnic
20285ad177 lib: Consistent error messages in all modules
This commit fixes some error messages that are not consistent with
some general rules which most of the error messages follow.

PR-URL: https://github.com/nodejs/node/pull/3374
Reviewed-By: Roman Reiss <me@silverwind.io>
2015-11-09 20:08:36 +01:00
Rich Trott
cf0130dc0d lib: return boolean from child.send()
Previous change reinstated returning boolean from child.send() but
missed one instance where undefined might be returned instead.

PR-URL: https://github.com/nodejs/node/pull/3577
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2015-10-29 17:00:27 -07:00
Rich Trott
cdcf00a0b9 lib,doc: return boolean from child.send()
The documentation indicates that child.send() returns a boolean but it
has returned undefinined at since v0.12.0. It now returns a boolean per
the (slightly updated) documentation.

PR-URL: https://github.com/nodejs/node/pull/3516
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2015-10-28 16:21:36 -07:00
Fedor Indutny
36b969ff44 child_process: null channel handle on close
`HandleWrap::OnClose` destroys the underlying C++ object and null's the
internal field pointer to it. Therefore there should be no references to
the wrapping JavaScript object.

`null` the process' `_channel` field right after closing it, to ensure
no crashes will happen.

Fix: https://github.com/nodejs/node/issues/2847
PR-URL: https://github.com/nodejs/node/pull/3041
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
2015-09-25 00:17:45 -04:00
Sakthipriyan Vairamani
f32a606e37 lib,src: remove usage of events.EventEmitter
The `events` module already exports `EventEmitter` constructor function
So, we don't have to use `events.EventEmitter` to access it.

Refer: https://github.com/nodejs/node/pull/2896

PR-URL: https://github.com/nodejs/node/pull/2921
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
2015-09-23 00:23:08 +05:30
Evan Lucas
3bc7e58ab0 child_process: use stdio.fd even if it is 0
Previously, in _validateStdio we were using stdio.fd || stdio. If
stdio.fd was falsy (or 0 in the case of stdin), then the entire stdio
object would be passed which could cause a crash.

Fixes: https://github.com/nodejs/node/issues/2721
PR-URL: https://github.com/nodejs/node/pull/2727
Reviewed-By: silverwind - Roman Reiss <me@silverwind.io>
Reviewed-By: cjihrig - Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
2015-09-07 19:03:19 -05:00
Ben Noordhuis
607aa3ac82 child_process: add callback parameter to .send()
Add an optional callback parameter to `ChildProcess.prototype.send()`
that is invoked when the message has been sent.

Juggle the control channel's reference count so that in-flight messages
keep the event loop (and therefore the process) alive until they have
been sent.

`ChildProcess.prototype.send()` and `process.send()` used to operate
synchronously but became asynchronous in commit libuv/libuv@393c1c5
("unix: set non-block mode in uv_{pipe,tcp,udp}_open"), which landed
in io.js in commit 07bd05b ("deps: update libuv to 1.2.1").

Fixes: https://github.com/nodejs/node/issues/760
PR-URL: https://github.com/nodejs/node/pull/2620
Reviewed-By: trevnorris - Trevor Norris <trev.norris@gmail.com>
Reviewed-By: jasnell - James M Snell <jasnell@gmail.com>
2015-09-06 21:37:58 +10:00
Roman Reiss
b5b8ff117c lib: don't use global Buffer
Port of https://github.com/joyent/node/pull/8603

The race condition present in the original PR didn't occur, so no
workaround was needed.

PR-URL: https://github.com/nodejs/io.js/pull/1794
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
2015-06-11 20:24:44 +02:00
Evan Lucas
a77c330c32 child_process: expose ChildProcess constructor
Creates two new internal modules (child_process and socket_list) for
better readability.

Exposes the ChildProcess constructor from the child_process module so
one can now `require(‘child_process’).ChildProcess`

Fixes: https://github.com/nodejs/io.js/issues/1751
PR-URL: https://github.com/nodejs/io.js/pull/1760
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
2015-05-28 09:38:29 -05:00