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>
Helper was rewritten to rely on promises instead of manually written
queue and callbacks. This simplifies the code and makes it easier to
maintain and extend.
PR-URL: https://github.com/nodejs/node/pull/14797
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Helper was rewritten to rely on promises instead of manually written
queue and callbacks. This simplifies the code and makes it easier to
maintain and extend.
PR-URL: https://github.com/nodejs/node/pull/14460
Reviewed-By: James M Snell <jasnell@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>
ESLint 4.x has stricter linting than previous versions. We are currently
using the legacy indentation rules in the test directory. This commit
changes the indentation of files to comply with the stricter 4.x linting
and enable stricter linting in the test directory.
PR-URL: https://github.com/nodejs/node/pull/14431
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
* Remove needless RegExp flag
In fixed case, `/g` flag is needless in the boolean context.
* Remove needless RegExp capturing
Use non-capturing grouping or remove capturing completely when:
* capturing is useless per se, e.g. in test() check;
* captured groups are not used afterward at all;
* some of the later captured groups are not used afterward.
* Use test, not match/exec in boolean context
match() and exec() return a complicated object,
unneeded in a boolean context.
* Do not needlessly repeat RegExp creation
This commit takes RegExp creation out of cycles and other repetitions.
As long as the RegExp does not use /g flag and match indices,
we are safe here.
In tests, this fix hardly gives a significant performance gain,
but it increases clarity and maintainability,
reassuring some RegExps to be identical.
RegExp in functions are not taken out of their functions:
while these functions are called many times
and their RegExps are recreated with each call,
the performance gain in test cases
does not seem to be worth decreasing function self-dependency.
PR-URL: https://github.com/nodejs/node/pull/13770
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Test guide describes a conventional layout for test headers, review
inspector tests and reorganize to follow the convention.
PR-URL: https://github.com/nodejs/node/pull/13428
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Start the transition to Array.prototype.includes() and
String.prototype.includes(). This commit refactors most of the
comparisons of Array.prototype.indexOf() and String.prototype.indexOf()
return values with -1 to the former methods in tests.
PR-URL: https://github.com/nodejs/node/pull/12604
Refs: https://github.com/nodejs/node/issues/12586
Reviewed-By: Alexey Orlenko <eaglexrlnk@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Overlooked in commit 47f8f74 ("src: remove support for --debug") from
earlier this month.
PR-URL: https://github.com/nodejs/node/pull/12495
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Currently when node is build --without-ssl and the test are run,
there are a number of failing test due to tests expecting crypto
support to be available. This commit fixes fixes the failure and
instead skips the tests that expect crypto to be available.
PR-URL: https://github.com/nodejs/node/pull/11631
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Formatting changes for upcoming linter update.
PR-URL: https://github.com/nodejs/node/pull/10561
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Make /json/version return an object instead of an object wrapped in an
array.
Fixes: https://github.com/nodejs/node/issues/9760
PR-URL: https://github.com/nodejs/node/pull/9762
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
There are multiple reports of Windows7 not being able to resolve
localhost on some setups (web search also confirms that). This change
will advertise "127.0.0.1" as inspector host name.
Fixes: https://github.com/nodejs/node/issues/9382
Fixes: https://github.com/nodejs/node/issues/9188
PR-URL: https://github.com/nodejs/node/pull/9451
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This implementation switches to V8 inspector from the V8 repository. The
new inspector integration is now using final APIs and exposes a stable
wire protocol, removing the need for pointing the users to specific
devtools version.
PR-URL: https://github.com/nodejs/node/pull/9028
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Fix a nullptr dereference when an invalid path is requested.
Regression introduced in commit 69fc85d ("inspector: generate UUID for
debug targets"), caught by Coverity.
PR-URL: https://github.com/nodejs/node/pull/9184
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
By convention, inspector protocol targets do not advertise connection
URLs when the frontend is already connected as multiple inspector
protocol connections are not supported.
PR-URL: https://github.com/nodejs/node/pull/8919
Reviewed-By: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This test executes a simple debug session over the inspector protocol.
PR-URL: https://github.com/nodejs/node/pull/8429
Reviewed-By: ofrobots - Ali Ijaz Sheikh <ofrobots@google.com>
Jon Moss
Miroslav Bajtoš
Eugene Ostroukhov
Anna Henningsen
Jan Krems
Rich Trott
Sebastiaan Deckers
Vse Mozhet Byt
Sam Roberts
gwer
Ben Noordhuis
Brian White
Daniel Bevenius
Teddy Katz