Convert anything to string, but Buffer, TypedArray and ArrayBuffer
```
var uint8 = new Uint8Array([0xf0, 0x9f, 0x90]);
Buffer.byteLength(uint8); // should be 3, but returns 11
Buffer.byteLength(uint8.buffer); // should be 3, but return 20
```
PR-URL: https://github.com/nodejs/node/pull/5255
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Update example of readInt32LE method. buf.readInt32LE(1) is supposed to
throw an error as it has only four elements and it tries to read 32
bits from three bytes.
Fixes: https://github.com/nodejs/node/issues/5889
PR-URL: https://github.com/nodejs/node/pull/5890
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
This makes several changes:
1. Allow path/filename to be passed in as a Buffer on fs methods
2. Add `options.encoding` to fs.readdir, fs.readdirSync, fs.readlink,
fs.readlinkSync and fs.watch.
3. Documentation updates
For 1... it's now possible to do:
```js
fs.open(Buffer('/fs/foo/bar'), 'w+', (err, fd) => { });
```
For 2...
```js
fs.readdir('/fs/foo/bar', {encoding:'hex'}, (err,list) => { });
fs.readdir('/fs/foo/bar', {encoding:'buffer'}, (err, list) => { });
```
encoding can also be passed as a string
```js
fs.readdir('/fs/foo/bar', 'hex', (err,list) => { });
```
The default encoding is set to UTF8 so this addresses the
discrepency that existed previously between fs.readdir and
fs.watch handling filenames differently.
Fixes: https://github.com/nodejs/node/issues/2088
Refs: https://github.com/nodejs/node/issues/3519
PR-URL: https://github.com/nodejs/node/pull/5616
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/5876
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
In several places throughout the code we write directly to stderr
to report warnings (deprecation, possible eventemitter memory leak).
The current design of simply dumping the text to stderr is less
than ideal. This PR introduces a new "process warnings" mechanism
that emits 'warning' events on the global process object. These are
invoked with a `warning` argument whose value is an Error object.
By default, these warnings will be printed to stderr. This can be
suppressed using the `--no-warnings` and `--no-deprecation` command
line flags. For warnings, the 'warning' event will still be emitted
by the process, allowing applications to handle the warnings in custom
ways. The existing `--no-deprecation` flag will continue to supress
all deprecation output generated by the core lib.
The `--trace-warnings` command line flag will tell Node.js to print
the full stack trace of warnings as part of the default handling.
The existing `--no-deprecation`, `--throw-deprecation` and
`--trace-deprecation` flags continue to work as they currently do,
but the exact output of the warning message is modified to occur
on process.nextTick().
The stack trace for the warnings and deprecations preserve and point
to the correct call site.
A new `process.emitWarning()` API is provided to permit userland
to emit warnings and deprecations using the same consistent
mechanism.
Test cases and documentation are included.
PR-URL: https://github.com/nodejs/node/pull/4782
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Wyatt Preul <wpreul@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Implementing the suggestion in
https://github.com/nodejs/node/issues/4554 this pull request renames
the parameter name in all the places that accept an event name as a parameter.
Previously, the parameter has been called `event` or `type`. Now as suggested
it is consistently called `eventName`.
PR-URL: https://github.com/nodejs/node/pull/5850
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Fail early in require('crypto'), require('tls'),
require('https'), etc when crypto is not available
(rather than depending on an internal try/catch).
Add documentation for detecting when crypto is not available.
PR-URL: https://github.com/nodejs/node/pull/5611
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Fixes a copy typo in the events.md docs.
PR-URL: https://github.com/nodejs/node/pull/5849
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Based on the conversation in #4243 this implements a way to increase
and decrease the size of the thread pool used in v8.
Currently v8 restricts the thread pool size to `kMaxThreadPoolSize`
which at this commit is (4). So it is only possible to
decrease the thread pool size at the time of this commit. However with
changes upstream this could change at a later date.
If set to 0 then v8 would choose an appropriate size of the thread pool
based on the number of online processors.
PR-URL: https://github.com/nodejs/node/pull/4344
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
[Diffie-Hellman](https://en.wikipedia.org/wiki/Diffie%E2%80%93Hellman_key_exchange#Cryptographic_explanation)
keys are composed of a `generator` a `prime` a `secret_key`
and the `public_key` resulting from the math operation:
```
(generator ^ secret_key) mod prime = public_key
```
Diffie-Hellman keypairs will compute a matching shared secret
if and only if the generator and prime match for both
recipients. The generator is usually **2** and the prime is
what is called a [Safe Prime](https://en.wikipedia.org/wiki/Safe_prime).
Usually this matching is accomplished by using
[standard published groups](http://tools.ietf.org/html/rfc3526).
We expose access those groups with the `crypto.getDiffieHellman`
function.
`createDiffieHellman` is trickier to use. The original example
had the user creating 11 bit keys, and creating random groups of
generators and primes. 11 bit keys are very very small, can be
cracked by a single person on a single sheet of paper. A
byproduct of using such small keys were that it was a high
likelihood that two calls of `createDiffieHellman(11)` would
result in using the same 11 bit safe prime.
The original example code would fail when the safe primes generated
at 11 bit lengths did not match for alice and bob.
If you want to use your own generated safe `prime` then the proper
use of `createDiffieHellman` is to pass the `prime` and `generator`
to the recipient's constructor, so that when they compute the shared
secret their `prime` and `generator` match, which is fundamental to
the algorithm.
PR-URL: https://github.com/nodejs/node/pull/5505
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Added a hint saying that node uses the default "Cannot find module"
error when requiring a module for which the "main" file specified in
the package.json is missing.
PR-URL: https://github.com/nodejs/node/pull/5812
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This page is mostly a mirror of the updated manual page.
PR-URL: https://github.com/nodejs/node/pull/5787
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell jasnell@gmail.com>
Reviewed-By: Bryan English <bryan@bryanenglish.com>
Reviewed-By: Robert Lindstädt <robert.lindstaedt@gmail.com>
Added appropriate in-document links. Clarified a bit of
`setImmediate`, including a quick grammar fix (plural possessive
apostrophe).
PR-URL: https://github.com/nodejs/node/pull/5792
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
This uses libuv's mkdtemp function to provide a way to create a
temporary folder, using a prefix as the path. The prefix is appended
six random characters. The callback function will receive the name
of the folder that was created.
Usage example:
fs.mkdtemp('/tmp/foo-', function(err, folder) {
console.log(folder);
// Prints: /tmp/foo-Tedi42
});
The fs.mkdtempSync version is also provided. Usage example:
console.log(fs.mkdtemp('/tmp/foo-'));
// Prints: tmp/foo-Tedi42
This pull request also includes the relevant documentation changes
and tests.
PR-URL: https://github.com/nodejs/node/pull/5333
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Brings tls.markdown into alignment with the node.js
styleguide, specifically regarding the use of
personal pronouns. Also, fixes various typos,
punctuation errors, missing definite/indefinite
articles and other minor grammatical issues.
PR-URL: https://github.com/nodejs/node/pull/5706
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
The need for an overview of blocking vs non-blocking was
identified in the docs WG Q1 roadmap. As there are several
topics also pending creation, this one tries to hit the correct
level of detail based on completion of the others. One
which is referenced is
https://github.com/nodejs/node/pull/4936/files and URLs
within this PR need to change based on where that will land
on the node website.
PR-URL: https://github.com/nodejs/node/pull/5326
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
This commit addresses https://github.com/nodejs/node/issues/5431 by
changing the way that the repl handles assignment to the global _
variable.
Prior to this commit, node sets the result of the last expression
evaluated in the repl to `_`. This causes problems for users of
underscore, lodash and other packages where it is common to assign
`_` to the package, e.g. `_ = require('lodash');`.
Changes in this commit now result in the following behavior.
- If unassigned on the repl, `_` continues to refer to the last
evaluated expression.
- If assigned, the default behavior of assigning `_` to the last
evaluated expression is disabled, and `_` now references whatever
value was explicitly set. A warning is issued on the repl -
'expression assignment to _ now disabled'.
- If `_` is assigned multiple times, the warning is only displayed once.
- When `.clear` is executed in the repl, `_` continues to refer to its
most recent value, whatever that is (this is per existing behavior).
If `_` had been explicitly set prior to `.clear` it will not change
again with the evaluation of the next expression.
PR-URL: https://github.com/nodejs/node/pull/5535
Fixes: https://github.com/nodejs/node/issues/5431
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: James M Snell <jasnell@gmail.com>
The string template was closed after `${buf.length}`
causing a syntax error within the example.
PR-URL: https://github.com/nodejs/node/pull/5781
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Previously, we emitted ip and addressType. This change includes the host
as the last argument to the lookup event.
PR-URL: https://github.com/nodejs/node/pull/5598
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
This commit makes input type checking consistent across all path
functions.
PR-URL: https://github.com/nodejs/node/pull/5348
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Changes the multiline return example commments in querystring
which have the example out-of-comment, into single comment
lines to remain consistent with other docs.
PR-URL: https://github.com/nodejs/node/pull/5705
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
The format of certain code comments in the `path` documentation results
in the code blocks being invalid. I also find it confusing at least as
formatted on the website. This change is intended to improve those
comments.
PR-URL: https://github.com/nodejs/node/pull/5670
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
Document that util._extend was never intended to be used
and should be considered deprecated.
PR-URL: https://github.com/nodejs/node/pull/4903
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Uses better troff formatting.
Removes v8 options from the man page.
Also edits `node -h` in node.cc slightly.
PR-URL: https://github.com/nodejs/node/pull/5497
Reviewed-By: James Snell <jasnell@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Several changes:
* Soft-Deprecate Buffer() constructors
* Add `Buffer.from()`, `Buffer.alloc()`, and `Buffer.allocUnsafe()`
* Add `--zero-fill-buffers` command line option
* Add byteOffset and length to `new Buffer(arrayBuffer)` constructor
* buffer.fill('') previously had no effect, now zero-fills
* Update the docs
PR-URL: https://github.com/nodejs/node/pull/4682
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
`Console` constructor checks that `stdout.write()` is a function but
does not do an equivalent check for `stderr.write()`. If `stderr` is not
specified in the constructor, then `stderr` is set to be `stdout`.
However, if `stderr` is specified, but `stderr.write()` is not a
function, then an exception is not thrown until `console.error()` is
called.
This change adds the same check for 'stderr' in the constructor that is
there for `stdout`. If `stderr` fails the check, then a `TypeError` is
thrown.
Took the opportunity to copyedit the `console` doc a little too.
PR-URL: https://github.com/nodejs/node/pull/5635
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rod Vagg <rod@vagg.org>
Per https://github.com/nodejs/node/issues/1817, there are many modules
that currently abuse the private `_events` property on EventEmitter.
One of the ways it is used is to determine if a particular event is
being listened for. This adds a simple `eventNames()` method that
returns an array of the events with currently registered listeners.
PR-URL: https://github.com/nodejs/node/pull/5617
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
The current documentation for Convenience Methods specifies that
the first argument can be either
`string or buffer`, `string` or `raw Buffer`.
This commit replaces all these instances with `Buffer or string`.
PR-URL: https://github.com/nodejs/node/pull/5685
Reviewed-By: Claudio Rodriguez <cjrodr@yahoo.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
The current documentation for writable.write only specifies that the
callback is called "once the data has been fully handled". It is
ambiguous whether this means "successfully handled" and, if so,
whether the callback is called if the data can not be successfully
handled (i.e. an error occurs).
The ambiguity is not only in the documentation. The stream class
implementations differ on this point. stream.Writable invokes the
callback with any errors that occur during parameter checking or
during calls to _write. However, not all classes return all errors
to _write. zlib.Zlib does pass argument and state errors to the
_write (_transform) callback, but does not pass data errors.
http.OutgoingMessage passes argument type errors and some other types
of errors, but not all.
This inconsistency is behind issue #1746 and, I suspect, other issues
in client code which passes a callback to write.
This commit takes no position on whether the callback error behavior
should changed, but simply attempts to document the current behavior
in a way that is open to changes so that users are not caught by
surprise.
PR-URL: https://github.com/nodejs/node/pull/4810
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremy Whitlock <jwhitlock@apache.org>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/5678
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/5678
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/5678
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit updates events doc to describe removeListener behaviour
when it is called within a listener. An example is added to make
it more evident.
A test is also incuded to make this behaviour consistent in future
releases.
Fixes: nodejs/node#4759
PR-URL: https://github.com/nodejs/node/pull/5201
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
We recently sandboxed the release CI jobs to their own Jenkins instance
This commit updates the links found in `doc/releases.md` to point
people in the right direction.
PR-URL: https://github.com/nodejs/node/pull/5632
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>
Reviewed-By: James M Snell <jasnell@gmail.com>
Jackson Tian
ghaiklor
James M Snell
Jeremiah Senkpiel
Benjamin Gruenbaum
John Eversole
Corey Kosak
Tom Gallacher
Bill Automata
Rod Vagg
Jackson Tian
Wolfgang Steiner
Mithun Patel
Bryan English
Florian MARGAINE
Stefano Vozza
Jarrett Widman
Lance Ball
Andrea Giammarchi
HUANG Wei
Brian White
Claudio Rodriguez
Rich Trott
Felix Böhm
Kirill Fomichev
Kevin Locke
Daijiro Wachi
Kári Tristan Helgason
Vaibhav
Robert C Jensen
Myles Borins