Implement a special async_hooks listener that forwards information
about async tasks to V8Inspector asyncTask* API, thus enabling
DevTools feature "async stack traces".
The feature is enabled only on 64bit platforms due to a technical
limitation of V8 Inspector: inspector uses a pointer as a task id,
while async_hooks use 64bit numbers as ids.
To avoid performance penalty of async_hooks when not debugging,
the new listener is enabled only when the process enters a debug mode:
- When the process is started with `--inspect` or `--inspect-brk`,
the listener is enabled immediately and async stack traces
lead all the way to the first tick of the event loop.
- When the debug mode is enabled via SIGUSR1 or `_debugProcess()`,
the listener is enabled together with the debugger. As a result,
only async operations started after the signal was received
will be correctly observed and reported to V8 Inspector. For example,
a `setInterval()` called in the first tick of the event will not be
shown in the async stack trace when the callback is invoked. This
behaviour is consistent with Chrome DevTools.
Last but not least, this commit fixes handling of InspectorAgent's
internal property `enabled_` to ensure it's set back to `false`
after the debugger is deactivated (typically via `process._debugEnd()`).
Fixes: https://github.com/nodejs/node/issues/11370
PR-URL: https://github.com/nodejs/node/pull/13870
Reviewed-by: Timothy Gu <timothygu99@gmail.com>
Reviewed-by: Anna Henningsen <anna@addaleax.net>
The global `process` object had its prototype replaced with a
fresh object that had `EventEmitter.prototype` as its prototype.
With this change, the original `process.constructor.prototype` is
modified to have `EventEmitter.prototype` as its prototype, reflecting
that `process` objects are also `EventEmitter`s.
Fixes: https://github.com/nodejs/node/issues/14699
PR-URL: https://github.com/nodejs/node/pull/14715
Reviewed-By: Anna Henningsen <anna@addaleax.net>
* id values of -1 are allowed. They indicate that the id was never
correctly assigned to the async resource. These will appear in any
call graph, and will only be apparent to those using the async_hooks
module, then reported in an issue.
* ids < -1 are still not allowed and will cause the application to
exit the process; because there is no scenario where this should ever
happen.
* Add asyncId range checks to emitAfterScript().
* Fix emitBeforeScript() range checks which should have been || not &&.
* Replace errors with entries in internal/errors.
* Fix async_hooks tests that check for exceptions to match new
internal/errors entries.
NOTE: emit{Before,After,Destroy}() must continue to exit the process
because in the case of an exception during hook execution the state of
the application is unknowable. For example, an exception could cause a
memory leak:
const id_map = new Map();
before(id) {
id_map.set(id, /* data object or similar */);
},
after(id) {
throw new Error('id never dies!');
id_map.delete(id);
}
Allowing a recoverable exception may also cause an abort because of a
stack check in Environment::AsyncHooks::pop_ids() that verifies the
async id and pop'd ids match. This case would be more difficult to debug
than if fatalError() (lib/async_hooks.js) was called immediately.
try {
async_hooks.emitBefore(null, NaN);
} catch (e) { }
// do something
async_hooks.emitAfter(5);
It also allows an edge case where emitBefore() could be called twice and
not have the pop_ids() CHECK fail:
try {
async_hooks.emitBefore(5, NaN);
} catch (e) { }
async_hooks.emitBefore(5);
// do something
async_hooks.emitAfter(5);
There is the option of allowing mismatches in the stack and ignoring the
check if no async hooks are enabled, but I don't believe going this far
is necessary.
PR-URL: https://github.com/nodejs/node/pull/14722
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
This patch adds support for CIDR notation to the output of the
`networkInterfaces()` method
PR-URL: https://github.com/nodejs/node/pull/14307
Fixes: https://github.com/nodejs/node/issues/14006
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
This fixes a typo in the util.inspect output of Http2Stream. It
previously had writeableSate instead of writableState.
PR-URL: https://github.com/nodejs/node/pull/14753
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
The variable deprecationWarned currently looks a little misplaced. It is
used in emitWarning but declared after it. This commit suggest moving
the var to the beginning of the function.
PR-URL: https://github.com/nodejs/node/pull/14769
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Alexey Orlenko <eaglexrlnk@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
By passing a single string rather than many small ones and
a single block allocation for passing headers, save expensive
interactions with JS values and memory allocations.
PR-URL: https://github.com/nodejs/node/pull/14723
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
The value of `this` for callbacks of `nextTick()` can vary depending on
the number of arguments. Make it consistent.
PR-URL: https://github.com/nodejs/node/pull/14645
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Fix situations in which the handle passed along with a message
that has a large payload and can’t be read entirely by a single
`recvmsg()` call isn’t associated with the message to which it
belongs.
PR-URL: https://github.com/nodejs/node/pull/14588
Fixes: https://github.com/nodejs/node/issues/13778
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Some parts were written by Timothy Gu <timothygu99@gmail.com>.
PR-URL: https://github.com/nodejs/node/pull/8837
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Aleksei Koziatinskii <ak239spb@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Also split up the tests.
PR-URL: https://github.com/nodejs/node/pull/14489
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Rather than using the `'fetchTrailers'` event to collect trailers,
a new `getTrailers` callback option is supported. If not set, the
internals will skip calling out for trailers at all. Expands the
test to make sure trailers work from the client side also.
PR-URL: https://github.com/nodejs/node/pull/14239
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
* respondWithFD now supports optional statCheck
* respondWithFD and respondWithFile both support offset/length for
range requests
* Fix linting nits following most recent update
PR-URL: https://github.com/nodejs/node/pull/14239
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Fixes: https://github.com/nodejs/http2/issues/179
Was fixing issue #179 and encountered a segault that was
happening somewhat randomly on session destruction. Both
should be fixed
PR-URL: https://github.com/nodejs/node/pull/14239
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Fixes: https://github.com/nodejs/http2/issues/184
Refines the `'socketError'` event a bit and adds a test for the
emission of the `'socketError'` event on the server. Client side
is tested separately
PR-URL: https://github.com/nodejs/node/pull/14239
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
At long last: The initial *experimental* implementation of HTTP/2.
This is an accumulation of the work that has been done in the nodejs/http2
repository, squashed down to a couple of commits. The original commit
history has been preserved in the nodejs/http2 repository.
This PR introduces the nghttp2 C library as a new dependency. This library
provides the majority of the HTTP/2 protocol implementation, with the rest
of the code here providing the mapping of the library into a usable JS API.
Within src, a handful of new node_http2_*.c and node_http2_*.h files are
introduced. These provide the internal mechanisms that interface with nghttp
and define the `process.binding('http2')` interface.
The JS API is defined within `internal/http2/*.js`.
There are two APIs provided: Core and Compat.
The Core API is HTTP/2 specific and is designed to be as minimal and as
efficient as possible.
The Compat API is intended to be as close to the existing HTTP/1 API as
possible, with some exceptions.
Tests, documentation and initial benchmarks are included.
The `http2` module is gated by a new `--expose-http2` command line flag.
When used, `require('http2')` will be exposed to users. Note that there
is an existing `http2` module on npm that would be impacted by the introduction
of this module, which is the main reason for gating this behind a flag.
When using `require('http2')` the first time, a process warning will be
emitted indicating that an experimental feature is being used.
To run the benchmarks, the `h2load` tool (part of the nghttp project) is
required: `./node benchmarks/http2/simple.js benchmarker=h2load`. Only
two benchmarks are currently available.
Additional configuration options to enable verbose debugging are provided:
```
$ ./configure --debug-http2 --debug-nghttp2
$ NODE_DEBUG=http2 ./node
```
The `--debug-http2` configuration option enables verbose debug statements
from the `src/node_http2_*` files. The `--debug-nghttp2` enables the nghttp
library's own verbose debug output. The `NODE_DEBUG=http2` enables JS-level
debug output.
The following illustrates as simple HTTP/2 server and client interaction:
(The HTTP/2 client and server support both plain text and TLS connections)
```jt client = http2.connect('http://localhost:80');
const req = client.request({ ':path': '/some/path' });
req.on('data', (chunk) => { /* do something with the data */ });
req.on('end', () => {
client.destroy();
});
// Plain text (non-TLS server)
const server = http2.createServer();
server.on('stream', (stream, requestHeaders) => {
stream.respond({ ':status': 200 });
stream.write('hello ');
stream.end('world');
});
server.listen(80);
```
```js
const http2 = require('http2');
const client = http2.connect('http://localhost');
```
Author: Anna Henningsen <anna@addaleax.net>
Author: Colin Ihrig <cjihrig@gmail.com>
Author: Daniel Bevenius <daniel.bevenius@gmail.com>
Author: James M Snell <jasnell@gmail.com>
Author: Jun Mukai
Author: Kelvin Jin
Author: Matteo Collina <matteo.collina@gmail.com>
Author: Robert Kowalski <rok@kowalski.gd>
Author: Santiago Gimeno <santiago.gimeno@gmail.com>
Author: Sebastiaan Deckers <sebdeckers83@gmail.com>
Author: Yosuke Furukawa <yosuke.furukawa@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/14239
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
All of this code is internal-only, and the changed variables/methods
are not generally useful to userland code.
When backporting this to release branches, it might be appropriate to
add non-enumerable aliases to be 100 % sure.
PR-URL: https://github.com/nodejs/node/pull/14449
Reviewed-By: Alexey Orlenko <eaglexrlnk@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Provide an (initially experimental) implementation of the WHATWG Encoding
Standard API (`TextDecoder` and `TextEncoder`). The is the same API
implemented on the browser side.
By default, with small-icu, only the UTF-8, UTF-16le and UTF-16be decoders
are supported. With full-icu enabled, every encoding other than iso-8859-16
is supported.
This provides a basic test, but does not include the full web platform
tests. Note: many of the web platform tests for this would fail by default
because we ship with small-icu by default.
A process warning will be emitted on first use to indicate that the
API is still experimental. No runtime flag is required to use the
feature.
Refs: https://encoding.spec.whatwg.org/
PR-URL: https://github.com/nodejs/node/pull/13644
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Change error message from the form this format:
The "time" array must have a length of 2. Received length 0
...to this format:
The array "time" (length 0) must be of length 2.
PR-URL: https://github.com/nodejs/node/pull/14324
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/13476
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
* internal/errors - assert should already be in place when calling any
of the message generating functions.
* No lazy load if not necessary.
* Replace function calls with `if`s.
PR-URL: https://github.com/nodejs/node/pull/14167
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Migrate tls.js to use internal/errors.js as per
https://github.com/nodejs/node/issues/11273
PR-URL: https://github.com/nodejs/node/pull/13994
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
In preparation for stricter indentation linting and to increase code
clarity, update indentation for ternaries in lib.
PR-URL: https://github.com/nodejs/node/pull/14247
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Miroslav Bajtoš
Pini Houri
Jimmy Thomson
Trevor Norris
Weijia Wang
Mudit Ameta
Evan Lucas
Daniel Bevenius
Tristian Flanagan
Anna Henningsen
Rich Trott
Jan Krems
Timothy Gu
James M Snell
Matteo Collina
alexbostock
Ruben Bridgewater
Sebastiaan Deckers
Vse Mozhet Byt
Bougarfaoui El houcine
Bidisha Pyne
Gunar C. Gessner
Michael Dawson
cornholio