Previously calling emitAfter() from _fatalException would skipt the
first asyncId. Instead use the size() of the std::stack to determine how
many times to loop and call emitAfter().
PR-URL: https://github.com/nodejs/node/pull/14914
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
An initial implementation of the Performance Timing API for Node.js.
This is the same Performance Timing API implemented by modern browsers
with a number of Node.js specific properties. The User Timing mark()
and measure() APIs are implemented, garbage collection timing, and
node startup milestone timing.
```js
const { performance } = require('perf_hooks');
performance.mark('A');
setTimeout(() => {
performance.mark('B');
performance.measure('A to B', 'A', 'B');
const entry = performance.getEntriesByName('A to B', 'measure')[0];
console.log(entry.duration);
}, 10000);
```
The implementation is at the native layer and makes use of uv_hrtime().
This should enable *eventual* integration with things like Tracing
and Inspection.
The implementation is extensible and should allow us to add new
performance entry types as we go (e.g. for measuring i/o perf,
etc).
Documentation and a test are provided.
PR-URL: https://github.com/nodejs/node/pull/14680
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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>
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>
Currently when building --without-ssl or --without-inspector there will
be an error when trying to set up the console in bootstrap_node.js:
Can't determine the arch of: 'out/Release/node'
bootstrap_node.js:276
if (!globalConsole.hasOwnProperty(key))
^
TypeError: Cannot read property 'hasOwnProperty' of undefined
at installInspectorConsole (bootstrap_node.js:276:25)
at get (bootstrap_node.js:264:21)
at evalScript (bootstrap_node.js:395:30)
at startup (bootstrap_node.js:125:9)
at bootstrap_node.js:537:3
I think this issue was introduced in commit
3f48ab3042 ("inspector: do not add
'inspector' property").
This commit attempts to fix this.
PR-URL: https://github.com/nodejs/node/pull/12881
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
The file no longer works after the removal of the --debug/--debug-brk
switches in commit 47f8f74 ("src: remove support for --debug".)
This commit also removes several tests that still referenced the
old debugger but were either unit-testing its internals or passing
for the wrong reason (like expecting an operation to fail, which
it did because the debugger is gone.)
PR-URL: https://github.com/nodejs/node/pull/12495
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
bootstrap_node.js was directly parsing process.execArgv to see if
internals should be exposed, even though the argv was already parsed by
node. This is unusual and unnecessary, change it to set the option value
from the parser onto the config binding.
PR-URL: https://github.com/nodejs/node/pull/12245
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Commit c5b07d4 ("lib: fix beforeExit not working with -e") runs the
to-be-evaluated code at a later time than before because it switches
from `process.nextTick()` to `setImmediate()`.
It affects `-e 'process.on("message", ...)'` because there is now a
larger time gap between startup and attaching the event listener,
increasing the chances of missing early messages. I'm reasonably
sure `process.nextTick()` was also susceptible to that, only less
pronounced.
Avoid the problem altogether by evaluating the code synchronously.
Harmonizes the logic with `Module.runMain()` from lib/module.js
which also calls `process._tickCallback()` afterwards.
PR-URL: https://github.com/nodejs/node/pull/11958
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Assigns a static identifier code to all runtime and documentation
only deprecations. The identifier code is included in the emitted
DeprecationWarning.
Also adds a deprecations.md to the API docs to provide a central
location where deprecation codes can be referenced and explained.
PR-URL: https://github.com/nodejs/node/pull/10116
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Michal Zasso <targos@protonmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
* Adds process.versions.cldr, .tz, and .unicode
* Changes how process.versions.icu is loaded
* Lazy loads the process.versions.* values for these
* add an exception to util.js
to cause 'node -p process.versions' to still work
* update process.version docs
Fixes: https://github.com/nodejs/node/issues/9237
Commit 93a44d5 ("src: fix deferred events not working with -e") defers
evaluation of the script to the next tick.
A side effect of that change is that 'beforeExit' listeners run before
the actual script. 'beforeExit' is emitted when the event loop is
empty but process.nextTick() does not ref the event loop.
Fix that by using setImmediate(). Because it is implemented in terms
of a uv_check_t handle, it interacts with the event loop properly.
Fixes: https://github.com/nodejs/node/issues/8534
PR-URL: https://github.com/nodejs/node/pull/8821
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
When node is running with --inspect flag, default console.log,
console.warn and other methods call inspector console methods in
addition to current behaviour (dump formatted message to stderr and
stdout). Inspector console methods forward message to DevTools and
show up in DevTools Console with DevTools formatters. Inspector
console methods not present on Node console will be added into it.
Only own methods on global.console object will be changed while in a
debugging session. User are still able to redefine it, use
console.Console or change original methods on Console.prototype.
PR-URL: https://github.com/nodejs/node/pull/7988
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: jasnell - James M Snell <jasnell@gmail.com>
Reviewed-By: ofrobots - Ali Ijaz Sheikh <ofrobots@google.com>
This change introduces experimental v8-inspector support. This brings
the DevTools debug protocol allowing Node.js to be debugged with
Chrome DevTools native, or through other debuggers supporting that
protocol.
Partial WebSocket support, to the extent required by DevTools, is
included. This is derived from the implementation in Blink.
v8-inspector support can be disabled by the --without-inspector
configure flag.
PR-URL: https://github.com/nodejs/node/pull/6792
Reviewed-By: jasnell - James M Snell <jasnell@gmail.com>
Reviewed-By: addaleax - Anna Henningsen <anna@addaleax.net>
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Bradley Farias