OS X has a tiny 1kb hard-coded buffer size for stdout / stderr to
TTYs (terminals). Output larger than that causes chunking, which ends
up having some (very small but existent) delay past the first chunk.
That causes two problems:
1. When output is written to stdout and stderr at similar times, the
two can become mixed together (interleaved). This is especially
problematic when using control characters, such as \r. With
interleaving, chunked output will often have lines or characters erased
unintentionally, or in the wrong spots, leading to broken output.
CLI apps often extensively use such characters for things such as
progress bars.
2. Output can be lost if the process is exited before chunked writes
are finished flushing. This usually happens in applications that use
`process.exit()`, which isn't infrequent.
See https://github.com/nodejs/node/issues/6980 for more info.
This became an issue as result of the Libuv 1.9.0 upgrade. A fix to
an unrelated issue broke a hack previously required for the OS X
implementation. This resulted in an unexpected behavior change in node.
The 1.9.0 upgrade was done in c3cec1eefc,
which was included in v6.0.0.
Full details of the Libuv issue that induced this are at
https://github.com/nodejs/node/issues/6456#issuecomment-219974514
Refs: https://github.com/nodejs/node/pull/1771
Refs: https://github.com/nodejs/node/issues/6456
Refs: https://github.com/nodejs/node/pull/6773
Refs: https://github.com/nodejs/node/pull/6816
PR-URL: https://github.com/nodejs/node/pull/6895
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Treat negative length arguments to `Buffer()`/`allocUnsafe()`
as if they were zero so the allocation does not affect the
pool’s offset.
Fixes: https://github.com/nodejs/node/issues/7047
PR-URL: https://github.com/nodejs/node/pull/7051
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Rod Vagg <rod@vagg.org>
There are several places in the cluster module where a version
of process.send() is called, but the result is swallowed. Most
of these cases are internal, but Worker.prototype.send(), which
is publicly documented, also suffers from this problem. This
commit exposes the return value to facilitate better error
handling, and bring Worker.prototype.send() into compliance
with the documentation.
PR-URL: https://github.com/nodejs/node/pull/6998
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ron Korving <ron@ronkorving.nl>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
When debug flags are passed to clustered applications, the debug
port is rewritten for each worker process to avoid collisions.
Prior to this commit, each debug flag would get a unique value.
This commit reworks the logic to assign the same port value to
all debug flags for a single worker.
PR-URL: https://github.com/nodejs/node/pull/7050
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
This commit provides a rewrite of StringDecoder that both improves
performance (for non-single-byte encodings) and understandability.
Additionally, StringDecoder instantiation performance has increased
considerably due to inlinability and more efficient encoding name
checking.
PR-URL: https://github.com/nodejs/node/pull/6777
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
It allows reopening a server after it has been closed.
Fixes: https://github.com/nodejs/node/issues/6693
PR-URL: https://github.com/nodejs/node/pull/6981
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ron Korving <ron@ronkorving.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit fix a possible crash situation in dgram send().
A crash is possible if an array is passed, and then altered after the
send call, as the call to libuv is wrapped in process.nextTick().
It also avoid sending an empty array to libuv by allocating an empty
buffer. It also does some cleanup inside send() to increase readability.
It removes test flakyness by use common.mustCall and
common.platformTimeout. Fixes situations were some events were not
asserted to be emitted.
Fixes: https://github.com/nodejs/node/issues/6616
PR-URL: https://github.com/nodejs/node/pull/6804
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Before this commit `node --debug-port=1234 debug t.js` ignored the
--debug-port= argument, binding to the default port 5858 instead,
making it impossible to debug more than one process on the same
machine that way.
This commit also reduces the number of places where the default port
is hard-coded by one.
Fixes: https://github.com/nodejs/node/issues/3345
PR-URL: https://github.com/nodejs/node/pull/3470
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
cluster's internal message handling includes a cache of callback
functions. Once the message for that callback is received, it is
removed from the cache. If, for any reason, the same message ID
is processed twice, the callback will be missing from the cache
and cluster will try to call undefined as a function. This commit
guards against this scenario.
Refs: https://github.com/nodejs/node/issues/6561
PR-URL: https://github.com/nodejs/node/pull/6902
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
When a worker is disconnecting, it shuts down all of the handles
it is waiting on. It is possible that a handle does not have an
owner, which causes a crash. This commit closes such handles
without accessing the missing owner.
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>
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>
Don't cache the exported values of fully uninitialized builtins.
This works by adding an additional `loading` flag that is only
active during initial loading of an internal module and checking
that either the module is fully loaded or is in that state before
using its cached value.
This has the effect that builtins modules which could not be loaded
(e.g. because compilation failed due to missing stack space) can be
loaded at a later point.
Fixes: https://github.com/nodejs/node/issues/6899
PR-URL: https://github.com/nodejs/node/pull/6907
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
When the 'buffer' encoding is passed to spawnSync(), an exception
is thrown in Buffer's toString() method because 'buffer' is not
a valid encoding there. This commit special cases the 'buffer'
encoding.
Fixes: https://github.com/nodejs/node/issues/6930
PR-URL: https://github.com/nodejs/node/pull/6939
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
As it is, `fs.mkdtemp` crashes with a C++ assertion if the callback
function is not passed. This patch uses `maybeCallback` to create one,
if no callback function is passed.
PR-URL: https://github.com/nodejs/node/pull/6828
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
This is purely cleanup and carries no visible behavioural changes.
Up to now, `this._closed` was used in zlib.js as a
synonym of `!this._handle`. This change makes this connection
explicit and removes the `_closed` property from zlib streams,
as the previous duplication has been the cause of subtle errors
like https://github.com/nodejs/node/issues/6034.
This also makes zlib errors lead to an explicit `_close()` call
rather than waiting for garbage collection to clean up the handle,
thus returning memory resources earlier in the case of an error.
Add a getter for `_closed` so that the property remains accessible
by legacy code.
PR-URL: https://github.com/nodejs/node/pull/6574
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Avoid using deprecated getter syntax plus other
miscellaneous updates.
PR-URL: https://github.com/nodejs/node/pull/6766
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Add the `--preserve-symlinks` flag. This makes the changes added
in #5950 conditional. By default the old behavior is used. With
the flag set, symlinks are preserved, switching to the new
behavior. This should be considered to be a temporary solution
until we figure out how to solve the symlinked peer dependency
problem in a more general way that does not break everything
else.
Additional test cases are included.
PR-URL: https://github.com/nodejs/node/pull/6537
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Minor cleanup of how --debug-brk works:
* We no longer need to use command line flags to expose the debug
object.
* Do not depend on the existence of global.v8debug as a mechanism to
determine if --debug-brk was specified.
* We no longer need to set a dummy listener with --debug-brk.
PR-URL: https://github.com/nodejs/node/pull/6599
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: cjihrig - Colin Ihrig <cjihrig@gmail.com>
Minor clean up. There are still some places in core that use
the legacy __defineGetter__ syntax. This updates most of those.
PR-URL: https://github.com/nodejs/node/pull/6768
Reviewed-By: Rich Trott <rtrott@gmail.com>
There has been occasional nits for spacing in object literals in PRs but
the project does not lint for it and it is not always handled
consistently in the existing code, even on adjacent lines of a file.
This change enables a linting rule requiring no space between the key
and the colon, and requiring at least one space (but allowing for more
so property values can be lined up if desired) between the colon and the
value. This appears to be the most common style used in the current code
base.
Example code the complies with lint rule:
myObj = { foo: 'bar' };
Examples that do not comply with the lint rule:
myObj = { foo : 'bar' };
myObj = { foo:'bar' };
PR-URL: https://github.com/nodejs/node/pull/6592
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
ESLint 2.9.0 fixes some bugs that resulted in minor issues not being
caught by ESLint 2.7.0. Update instances of our code that will be
flagged when we upgrade to ESLint 2.9.0.
PR-URL: https://github.com/nodejs/node/pull/6498
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Prevent util.inspect of throwing on date object with invalid date value.
It changed to output result of toString method call.
PR-URL: https://github.com/nodejs/node/pull/6504
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Until now, the docs stated that `process.noDeprecation` could be set
at runtime, but before any modules were loaded. That was not true,
because `lib/internal/util.js` was loaded during the process startup
process, so setting the flag at runtime was pointless.
Minimal test case:
process.noDeprecation = true;
process.EventEmitter;
This patch moves checking `process.noDeprecation` to the place where
it was actually used.
PR-URL: https://github.com/nodejs/node/pull/6683
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
In preparation for stricter linting, remove extra spaces.
PR-URL: https://github.com/nodejs/node/pull/6645
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Roman Reiss <me@silverwind.io>
As an alternative to https://github.com/nodejs/node/pull/5070,
set the max length of Arrays/TypedArrays in util.inspect() to
`100` and provide a `maxArrayLength` option to override.
PR-URL: https://github.com/nodejs/node/pull/6334
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
In certain conditions, inspecting a Proxy object can lead to a
max call stack error. Avoid that by detecting the Proxy object
and outputting information about the Proxy object itself.
Fixes: https://github.com/nodejs/node/issues/6464
PR-URL: https://github.com/nodejs/node/pull/6465
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This commit replaces process.exit.bind() with an arrow function
in Worker.prototype.destroy().
PR-URL: https://github.com/nodejs/node/pull/6502
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit allows all array properties to be printed except for
"length". Previously, this filter was applied by checking the
type of each property. However, something changed in V8, and
array elements started coming through as numeric strings, which
stopped them from being displayed.
Fixes: https://github.com/nodejs/node/issues/6444
PR-URL: https://github.com/nodejs/node/pull/6448
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Let this function return `this` for parity with `readable.setEncoding()`.
PR-URL: https://github.com/nodejs/node/pull/5040
Fixes: https://github.com/nodejs/node/issues/5013
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Calvin Metcalf <calvin.metcalf@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Add process.cpuUsage() method that returns the user and system
CPU time usage of the current process
PR-URL: https://github.com/nodejs/node/pull/6157
Reviewed-By: Robert Lindstaedt <robert.lindstaedt@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
When removing a `once` listener, the listener being passed to
the `removeListener` callback is the wrapper. This unwraps the
listener so that `removeListener` is passed the actual listener.
PR-URL: https://github.com/nodejs/node/pull/6394
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
The deprecation message for `crypto.Credentials` says to use
`tls.createSecureContext` but the correct property to use is
`tls.SecureContext()`.
Fix the deprecation message and add a test that checks the mappings of
deprecated properties and their warning messages.
PR-URL: https://github.com/nodejs/node/pull/6344
Reviewed-By: James M Snell <jasnell@gmail.com>
Use new API of Buffer to developers in most documents.
PR-URL: https://github.com/nodejs/node/pull/6367
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
There is no official way to figure out if the socket that you have on
hand is still connecting to the remote host. Introduce
`Socket#connecting`, which is essentially an unprefixed `_connecting`
property that we already had.
PR-URL: https://github.com/nodejs/node/pull/6404
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
This makes sure that `kNoZeroFill` flag is not accidentally set by
moving the all the flag operations directly inside `createBuffer()`.
It safeguards against logical errors like
https://github.com/nodejs/node/issues/6006.
This also ensures that `kNoZeroFill` flag is always restored to 0 using
a try-finally block, as it could be not restored to 0 in cases of failed
or zero-size `Uint8Array` allocation.
It safeguards against errors like
https://github.com/nodejs/node/issues/2930.
It also makes the `size > 0` check not needed there.
PR-URL: https://github.com/nodejs/node-private/pull/30
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Jeremiah Senkpiel
Anna Henningsen
cjihrig
Brian White
Ben Noordhuis
Matt Lavin
Santiago Gimeno
Matteo Collina
Fedor Indutny
Rich Trott
Justin Sprigg
Sakthipriyan Vairamani
Dirceu Pereira Tiegs
James M Snell
Eugene Obrezkov
Blake Embrey
Ali Ijaz Sheikh
Steven R. Loomis
Carl Lei
Rumkin
yorkie
Alexander Makarenko
Patrick Mueller
DavidCai
Jackson Tian
Сковорода Никита Андреевич