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deps: upgrade to libuv 1.41.0 #37360

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deps: upgrade to libuv 1.41.0 #37360

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cjihrig
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@cjihrig cjihrig commented Feb 13, 2021

Notable changes:

  • The IBM i platform has been promoted to a Tier 2 platform.
  • libuv is now built with -fno-strict-aliasing, and recommends
    that projects using libuv do the same.
  • uv_fs_mkdir() now returns UV_EINVAL for invalid directory
    names on Windows.
  • uv_uptime() now returns the correct value on OpenVZ containers.
  • Windows 8 is the new minimum supported version of Windows.
  • Bind errors are now reported from uv_tcp_connect().
  • The uv_pipe() function has been added.
  • The uv_socketpair() function has been added.
  • uv_read_start() error handling has been unified across
    Windows and Unix.

Notable changes:

- The IBM i platform has been promoted to a Tier 2 platform.
- libuv is now built with `-fno-strict-aliasing`, and recommends
  that projects using libuv do the same.
- `uv_fs_mkdir()` now returns `UV_EINVAL` for invalid directory
  names on Windows.
- `uv_uptime()` now returns the correct value on OpenVZ containers.
- Windows 8 is the new minimum supported version of Windows.
- Bind errors are now reported from `uv_tcp_connect()`.
- The `uv_pipe()` function has been added.
- The `uv_socketpair()` function has been added.
- `uv_read_start()` error handling has been unified across
  Windows and Unix.
@nodejs-github-bot nodejs-github-bot added the libuv Issues and PRs related to the libuv dependency or the uv binding. label Feb 13, 2021
@aduh95 aduh95 added the notable-change PRs with changes that should be highlighted in changelogs. label Feb 13, 2021
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@santigimeno santigimeno left a comment

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RSLGTM

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@targos targos left a comment

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Rubberstamp LGTM

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nodejs-github-bot commented Feb 14, 2021

@cjihrig cjihrig added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Feb 14, 2021
@jasnell
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jasnell commented Feb 15, 2021

RSLGTM

aduh95 pushed a commit that referenced this pull request Feb 15, 2021
Notable changes:

- The IBM i platform has been promoted to a Tier 2 platform.
- libuv is now built with `-fno-strict-aliasing`, and recommends
  that projects using libuv do the same.
- `uv_fs_mkdir()` now returns `UV_EINVAL` for invalid directory
  names on Windows.
- `uv_uptime()` now returns the correct value on OpenVZ containers.
- Windows 8 is the new minimum supported version of Windows.
- Bind errors are now reported from `uv_tcp_connect()`.
- The `uv_pipe()` function has been added.
- The `uv_socketpair()` function has been added.
- `uv_read_start()` error handling has been unified across
  Windows and Unix.

PR-URL: #37360
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
@aduh95
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aduh95 commented Feb 15, 2021

Landed in 78d6e62

@aduh95 aduh95 closed this Feb 15, 2021
@cjihrig cjihrig deleted the libuv branch February 15, 2021 22:11
danielleadams pushed a commit that referenced this pull request Feb 16, 2021
Notable changes:

- The IBM i platform has been promoted to a Tier 2 platform.
- libuv is now built with `-fno-strict-aliasing`, and recommends
  that projects using libuv do the same.
- `uv_fs_mkdir()` now returns `UV_EINVAL` for invalid directory
  names on Windows.
- `uv_uptime()` now returns the correct value on OpenVZ containers.
- Windows 8 is the new minimum supported version of Windows.
- Bind errors are now reported from `uv_tcp_connect()`.
- The `uv_pipe()` function has been added.
- The `uv_socketpair()` function has been added.
- `uv_read_start()` error handling has been unified across
  Windows and Unix.

PR-URL: #37360
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
danielleadams added a commit that referenced this pull request Feb 16, 2021
Notable Changes:

* crypto:
  * add keyObject.export() 'jwk' format option (Filip Skokan) #37081
* deps:
  * upgrade to libuv 1.41.0 (Colin Ihrig) #37360
* doc:
  * add dmabupt to collaborators (Xu Meng) #37377
  * refactor fs docs structure (James M Snell) #37170
* fs:
  * add fsPromises.watch() (James M Snell) #37179
  * use a default callback for fs.close() (James M Snell) #37174
  * add AbortSignal support to watch (Benjamin Gruenbaum) #37190
* perf_hooks:
  * introduce createHistogram (James M Snell) #37155
* stream:
  * improve Readable.from error handling (Benjamin Gruenbaum) #37158
* timers:
  * introduce setInterval async iterator (linkgoron) #37153
* tls:
  * add ability to get cert/peer cert as X509Certificate object (James M Snell) #37070
This was referenced Feb 16, 2021
danielleadams added a commit that referenced this pull request Feb 17, 2021
Notable Changes:

* crypto:
  * add keyObject.export() 'jwk' format option (Filip Skokan) #37081
* deps:
  * upgrade to libuv 1.41.0 (Colin Ihrig) #37360
* doc:
  * add dmabupt to collaborators (Xu Meng) #37377
  * refactor fs docs structure (James M Snell) #37170
* fs:
  * add fsPromises.watch() (James M Snell) #37179
  * use a default callback for fs.close() (James M Snell) #37174
  * add AbortSignal support to watch (Benjamin Gruenbaum) #37190
* perf_hooks:
  * introduce createHistogram (James M Snell) #37155
* stream:
  * improve Readable.from error handling (Benjamin Gruenbaum) #37158
* timers:
  * introduce setInterval async iterator (linkgoron) #37153
* tls:
  * add ability to get cert/peer cert as X509Certificate object (James M Snell) #37070
danielleadams added a commit that referenced this pull request Feb 17, 2021
Notable Changes:

* crypto:
  * add keyObject.export() jwk format option (Filip Skokan) #37081
* deps:
  * upgrade to libuv 1.41.0 (Colin Ihrig) #37360
* doc:
  * add dmabupt to collaborators (Xu Meng) #37377
  * refactor fs docs structure (James M Snell) #37170
* fs:
  * add fsPromises.watch() (James M Snell) #37179
  * use a default callback for fs.close() (James M Snell) #37174
  * add AbortSignal support to watch (Benjamin Gruenbaum) #37190
* perf_hooks:
  * introduce createHistogram (James M Snell) #37155
* stream:
  * improve Readable.from error handling (Benjamin Gruenbaum) #37158
* timers:
  * introduce setInterval async iterator (linkgoron) #37153
* tls:
  * add ability to get cert/peer cert as X509Certificate object (James M Snell) #37070
danielleadams added a commit that referenced this pull request Feb 17, 2021
PR-URL: #37406

Notable Changes:

* crypto:
  * add keyObject.export() jwk format option (Filip Skokan) #37081
* deps:
  * upgrade to libuv 1.41.0 (Colin Ihrig) #37360
* doc:
  * add dmabupt to collaborators (Xu Meng) #37377
  * refactor fs docs structure (James M Snell) #37170
* fs:
  * add fsPromises.watch() (James M Snell) #37179
  * use a default callback for fs.close() (James M Snell) #37174
  * add AbortSignal support to watch (Benjamin Gruenbaum) #37190
* perf_hooks:
  * introduce createHistogram (James M Snell) #37155
* stream:
  * improve Readable.from error handling (Benjamin Gruenbaum) #37158
* timers:
  * introduce setInterval async iterator (linkgoron) #37153
* tls:
  * add ability to get cert/peer cert as X509Certificate object (James M Snell) #37070
danielleadams added a commit that referenced this pull request Feb 18, 2021
PR-URL: #37406

Notable Changes:

* crypto:
  * add keyObject.export() jwk format option (Filip Skokan) #37081
* deps:
  * upgrade to libuv 1.41.0 (Colin Ihrig) #37360
* doc:
  * add dmabupt to collaborators (Xu Meng) #37377
  * refactor fs docs structure (James M Snell) #37170
* fs:
  * add fsPromises.watch() (James M Snell) #37179
  * use a default callback for fs.close() (James M Snell) #37174
  * add AbortSignal support to watch (Benjamin Gruenbaum) #37190
* perf_hooks:
  * introduce createHistogram (James M Snell) #37155
* stream:
  * improve Readable.from error handling (Benjamin Gruenbaum) #37158
* timers:
  * introduce setInterval async iterator (linkgoron) #37153
* tls:
  * add ability to get cert/peer cert as X509Certificate object (James M Snell) #37070
@Trott
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Trott commented Feb 28, 2021

When this is landed in 14.x, we can close #36439.

targos pushed a commit that referenced this pull request Mar 3, 2021
Notable changes:

- The IBM i platform has been promoted to a Tier 2 platform.
- libuv is now built with `-fno-strict-aliasing`, and recommends
  that projects using libuv do the same.
- `uv_fs_mkdir()` now returns `UV_EINVAL` for invalid directory
  names on Windows.
- `uv_uptime()` now returns the correct value on OpenVZ containers.
- Windows 8 is the new minimum supported version of Windows.
- Bind errors are now reported from `uv_tcp_connect()`.
- The `uv_pipe()` function has been added.
- The `uv_socketpair()` function has been added.
- `uv_read_start()` error handling has been unified across
  Windows and Unix.

PR-URL: #37360
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
MylesBorins pushed a commit that referenced this pull request Apr 6, 2021
Notable changes:

- The IBM i platform has been promoted to a Tier 2 platform.
- libuv is now built with `-fno-strict-aliasing`, and recommends
  that projects using libuv do the same.
- `uv_fs_mkdir()` now returns `UV_EINVAL` for invalid directory
  names on Windows.
- `uv_uptime()` now returns the correct value on OpenVZ containers.
- Windows 8 is the new minimum supported version of Windows.
- Bind errors are now reported from `uv_tcp_connect()`.
- The `uv_pipe()` function has been added.
- The `uv_socketpair()` function has been added.
- `uv_read_start()` error handling has been unified across
  Windows and Unix.

PR-URL: #37360
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
danielleadams added a commit that referenced this pull request May 3, 2021
Notable changes:

* assert:
  * change status of legacy asserts (James M Snell) (#38113)
* doc:
  * apply style for legacy status (James M Snell) (#37784)
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: cherry-pick cf71540c684c (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* fs:
  * add promisified readFile benchmark (Nitzan Uziely) (#37608)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* lib:
  * create diagnostics\_channel module (Stephen Belanger) (#34895)
  * implement AbortSignal.abort() (James M Snell) (#37693)
* test:
  * update dom/abort tests (James M Snell) (#37693)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
@danielleadams danielleadams mentioned this pull request May 3, 2021
danielleadams added a commit that referenced this pull request May 3, 2021
PR-URL: #38507

Notable changes:

* assert:
  * change status of legacy asserts (James M Snell) (#38113)
* doc:
  * apply style for legacy status (James M Snell) (#37784)
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: cherry-pick cf71540c684c (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* fs:
  * add promisified readFile benchmark (Nitzan Uziely) (#37608)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* lib:
  * create diagnostics\_channel module (Stephen Belanger) (#34895)
  * implement AbortSignal.abort() (James M Snell) (#37693)
* test:
  * update dom/abort tests (James M Snell) (#37693)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request May 3, 2021
PR-URL: #38507

Notable changes:

* assert:
  * change status of legacy asserts (James M Snell) (#38113)
* doc:
  * apply style for legacy status (James M Snell) (#37784)
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: cherry-pick cf71540c684c (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* fs:
  * add promisified readFile benchmark (Nitzan Uziely) (#37608)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* lib:
  * create diagnostics\_channel module (Stephen Belanger) (#34895)
  * implement AbortSignal.abort() (James M Snell) (#37693)
* test:
  * update dom/abort tests (James M Snell) (#37693)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request May 4, 2021
PR-URL: #38507

Notable changes:

* assert:
  * change status of legacy asserts (James M Snell) (#38113)
* doc:
  * apply style for legacy status (James M Snell) (#37784)
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: cherry-pick cf71540c684c (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* fs:
  * add promisified readFile benchmark (Nitzan Uziely) (#37608)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* lib:
  * create diagnostics\_channel module (Stephen Belanger) (#34895)
  * implement AbortSignal.abort() (James M Snell) (#37693)
* test:
  * update dom/abort tests (James M Snell) (#37693)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request May 7, 2021
PR-URL: #38507

Notable changes:

* assert:
  * change status of legacy asserts (James M Snell) (#38113)
* crypto:
  * implement randomuuid (James M Snell) (#36729)
* doc:
  * apply style for legacy status (James M Snell) (#37784)
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* lib:
  * create diagnostics\_channel module (Stephen Belanger) (#34895)
  * implement AbortSignal.abort() (James M Snell) (#37693)
* test:
  * update dom/abort tests (James M Snell) (#37693)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request May 8, 2021
PR-URL: #38507

Notable changes:

* crypto:
  * implement randomuuid (James M Snell) (#36729)
* doc:
  * apply style for legacy status (James M Snell) (#37784)
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* lib:
  * create diagnostics\_channel module (Stephen Belanger) (#34895)
  * implement AbortSignal.abort() (James M Snell) (#37693)
* test:
  * update dom/abort tests (James M Snell) (#37693)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)
danielleadams added a commit that referenced this pull request May 10, 2021
Notable changes:

Diagnostics channel (experimental module):

`diagnostics_channel` is a new experimental module that provides an API to create named channels to report arbitrary message data for diagnostics purposes.

The module was initially introduced in Node.js v15.1.0 and is backported to v14.17.0
to enable testing it at a larger scale.

With `diagnostics_channel`, Node.js core and module authors can publish contextual data about what they are doing at a given time. This could be the hostname and query string of a mysql query, for example. Just create a named channel with `dc.channel(name)` and call `channel.publish(data)` to send the data to any listeners to that channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

MySQL.prototype.query = function query(queryString, values, callback) {
  // Broadcast query information whenever a query is made
  channel.publish({
    query: queryString,
    host: this.hostname,
  });

  this.doQuery(queryString, values, callback);
};
```

Channels are like one big global event emitter but are split into separate objects to ensure they get the best performance. If nothing is listening to the channel, the publishing overhead should be as close to zero as possible. Consuming channel data is as easy as using `channel.subscribe(listener)` to run a function whenever a message is published to that channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

channel.subscribe(({ query, host }) => {
  console.log(`mysql query to ${host}: ${query}`);
});
```

The data captured can be used to provide context for what an app is doing at a given time. This can be used for things like augmenting tracing data, tracking network and filesystem activity, logging queries, and many other things. It's also a very useful data source for diagnostics tools to provide a clearer picture of exactly what the application is doing at a given point in the data they are presenting.

Contributed by Stephen Belanger (#34895).

UUID support in the crypto module:

The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4 UUID strings:

```js
const { randomUUID } = require('crypto');

console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```

Contributed by James M Snell (#36729.

Experimental support for `AbortController` and `AbortSignal`:

Node.js 14.17.0 adds experimental partial support for `AbortController` and `AbortSignal`.

Both constructors can be enabled globally using the `--experimental-abortcontroller` flag.

Additionally, several Node.js APIs have been updated to support `AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any spec-compliant third-party alternatives
should be compatible.

`AbortSignal` support was added to the following methods:

* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`

Other notable changes:

* doc:
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)

PR-URL: #38507
danielleadams added a commit that referenced this pull request May 11, 2021
Notable Changes:

Diagnostics channel (experimental module):

`diagnostics_channel` is a new experimental module that provides an API
to create named channels to report arbitrary message data for
diagnostics purposes.

The module was initially introduced in Node.js v15.1.0 and is
backported to v14.17.0 to enable testing it at a larger scale.

With `diagnostics_channel`, Node.js core and module authors can publish
contextual data about what they are doing at a given time. This could
be the hostname and query string of a mysql query, for example. Just
create a named channel with `dc.channel(name)` and call
`channel.publish(data)` to send the data to any listeners to that
channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

MySQL.prototype.query = function query(queryString, values, callback) {
  // Broadcast query information whenever a query is made
  channel.publish({
    query: queryString,
    host: this.hostname,
  });

  this.doQuery(queryString, values, callback);
};
```

Channels are like one big global event emitter but are split into
separate objects to ensure they get the best performance. If nothing is
listening to the channel, the publishing overhead should be as close to
zero as possible. Consuming channel data is as easy as using
`channel.subscribe(listener)` to run a function whenever a message is
published to that channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

channel.subscribe(({ query, host }) => {
  console.log(`mysql query to ${host}: ${query}`);
});
```

The data captured can be used to provide context for what an app is
doing at a given time. This can be used for things like augmenting
tracing data, tracking network and filesystem activity, logging
queries, and many other things. It's also a very useful data source
for diagnostics tools to provide a clearer picture of exactly what the
application is doing at a given point in the data they are presenting.

Contributed by Stephen Belanger (#34895).

UUID support in the crypto module:

The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4 UUID strings:

```js
const { randomUUID } = require('crypto');

console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```

Contributed by James M Snell (#36729).

Experimental support for `AbortController` and `AbortSignal`:

Node.js 14.17.0 adds experimental partial support for `AbortController`
and `AbortSignal`.

Both constructors can be enabled globally using the
`--experimental-abortcontroller` flag.

Additionally, several Node.js APIs have been updated to support
`AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any
spec-compliant third-party alternatives should be compatible.

`AbortSignal` support was added to the following methods:

* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`

Other notable changes:

* doc:
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)

PR-URL: #38507
danielleadams added a commit that referenced this pull request May 11, 2021
Notable Changes:

Diagnostics channel (experimental module):

`diagnostics_channel` is a new experimental module that provides an API
to create named channels to report arbitrary message data for
diagnostics purposes.

The module was initially introduced in Node.js v15.1.0 and is
backported to v14.17.0 to enable testing it at a larger scale.

With `diagnostics_channel`, Node.js core and module authors can publish
contextual data about what they are doing at a given time. This could
be the hostname and query string of a mysql query, for example. Just
create a named channel with `dc.channel(name)` and call
`channel.publish(data)` to send the data to any listeners to that
channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

MySQL.prototype.query = function query(queryString, values, callback) {
  // Broadcast query information whenever a query is made
  channel.publish({
    query: queryString,
    host: this.hostname,
  });

  this.doQuery(queryString, values, callback);
};
```

Channels are like one big global event emitter but are split into
separate objects to ensure they get the best performance. If nothing is
listening to the channel, the publishing overhead should be as close to
zero as possible. Consuming channel data is as easy as using
`channel.subscribe(listener)` to run a function whenever a message is
published to that channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

channel.subscribe(({ query, host }) => {
  console.log(`mysql query to ${host}: ${query}`);
});
```

The data captured can be used to provide context for what an app is
doing at a given time. This can be used for things like augmenting
tracing data, tracking network and filesystem activity, logging
queries, and many other things. It's also a very useful data source
for diagnostics tools to provide a clearer picture of exactly what the
application is doing at a given point in the data they are presenting.

Contributed by Stephen Belanger (#34895).

UUID support in the crypto module:

The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4
UUID strings:

```js
const { randomUUID } = require('crypto');

console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```

Contributed by James M Snell (#36729).

Experimental support for `AbortController` and `AbortSignal`:

Node.js 14.17.0 adds experimental partial support for `AbortController`
and `AbortSignal`.

Both constructors can be enabled globally using the
`--experimental-abortcontroller` flag.

Additionally, several Node.js APIs have been updated to support
`AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any
spec-compliant third-party alternatives should be compatible.

`AbortSignal` support was added to the following methods:

* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`

Other notable changes:

* doc:
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)

PR-URL: #38507
danielleadams added a commit that referenced this pull request May 11, 2021
Notable Changes:

Diagnostics channel (experimental module):

`diagnostics_channel` is a new experimental module that provides an API
to create named channels to report arbitrary message data for
diagnostics purposes.

The module was initially introduced in Node.js v15.1.0 and is
backported to v14.17.0 to enable testing it at a larger scale.

With `diagnostics_channel`, Node.js core and module authors can publish
contextual data about what they are doing at a given time. This could
be the hostname and query string of a mysql query, for example. Just
create a named channel with `dc.channel(name)` and call
`channel.publish(data)` to send the data to any listeners to that
channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

MySQL.prototype.query = function query(queryString, values, callback) {
  // Broadcast query information whenever a query is made
  channel.publish({
    query: queryString,
    host: this.hostname,
  });

  this.doQuery(queryString, values, callback);
};
```

Channels are like one big global event emitter but are split into
separate objects to ensure they get the best performance. If nothing is
listening to the channel, the publishing overhead should be as close to
zero as possible. Consuming channel data is as easy as using
`channel.subscribe(listener)` to run a function whenever a message is
published to that channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

channel.subscribe(({ query, host }) => {
  console.log(`mysql query to ${host}: ${query}`);
});
```

The data captured can be used to provide context for what an app is
doing at a given time. This can be used for things like augmenting
tracing data, tracking network and filesystem activity, logging
queries, and many other things. It's also a very useful data source
for diagnostics tools to provide a clearer picture of exactly what the
application is doing at a given point in the data they are presenting.

Contributed by Stephen Belanger (#34895).

UUID support in the crypto module:

The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4
UUID strings:

```js
const { randomUUID } = require('crypto');

console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```

Contributed by James M Snell (#36729).

Experimental support for `AbortController` and `AbortSignal`:

Node.js 14.17.0 adds experimental partial support for `AbortController`
and `AbortSignal`.

Both constructors can be enabled globally using the
`--experimental-abortcontroller` flag.

Additionally, several Node.js APIs have been updated to support
`AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any
spec-compliant third-party alternatives should be compatible.

`AbortSignal` support was added to the following methods:

* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`

Other notable changes:

* doc:
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)

PR-URL: #38507
danielleadams added a commit that referenced this pull request May 11, 2021
Notable Changes:

Diagnostics channel (experimental module):

`diagnostics_channel` is a new experimental module that provides an API
to create named channels to report arbitrary message data for
diagnostics purposes.

The module was initially introduced in Node.js v15.1.0 and is
backported to v14.17.0 to enable testing it at a larger scale.

With `diagnostics_channel`, Node.js core and module authors can publish
contextual data about what they are doing at a given time. This could
be the hostname and query string of a mysql query, for example. Just
create a named channel with `dc.channel(name)` and call
`channel.publish(data)` to send the data to any listeners to that
channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

MySQL.prototype.query = function query(queryString, values, callback) {
  // Broadcast query information whenever a query is made
  channel.publish({
    query: queryString,
    host: this.hostname,
  });

  this.doQuery(queryString, values, callback);
};
```

Channels are like one big global event emitter but are split into
separate objects to ensure they get the best performance. If nothing is
listening to the channel, the publishing overhead should be as close to
zero as possible. Consuming channel data is as easy as using
`channel.subscribe(listener)` to run a function whenever a message is
published to that channel.

```js
const dc = require('diagnostics_channel');
const channel = dc.channel('mysql.query');

channel.subscribe(({ query, host }) => {
  console.log(`mysql query to ${host}: ${query}`);
});
```

The data captured can be used to provide context for what an app is
doing at a given time. This can be used for things like augmenting
tracing data, tracking network and filesystem activity, logging
queries, and many other things. It's also a very useful data source
for diagnostics tools to provide a clearer picture of exactly what the
application is doing at a given point in the data they are presenting.

Contributed by Stephen Belanger (#34895).

UUID support in the crypto module:

The new `crypto.randomUUID()` method now allows to generate random
[RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) Version 4
UUID strings:

```js
const { randomUUID } = require('crypto');

console.log(randomUUID());
// 'aa7c91a1-f8fc-4339-b9db-f93fc7233429'
```

Contributed by James M Snell (#36729).

Experimental support for `AbortController` and `AbortSignal`:

Node.js 14.17.0 adds experimental partial support for `AbortController`
and `AbortSignal`.

Both constructors can be enabled globally using the
`--experimental-abortcontroller` flag.

Additionally, several Node.js APIs have been updated to support
`AbortSignal` for cancellation.
It is not mandatory to use the built-in constructors with them. Any
spec-compliant third-party alternatives should be compatible.

`AbortSignal` support was added to the following methods:

* `child_process.exec`
* `child_process.execFile`
* `child_process.fork`
* `child_process.spawn`
* `dgram.createSocket`
* `events.on`
* `events.once`
* `fs.readFile`
* `fs.watch`
* `fs.writeFile`
* `http.request`
* `https.request`
* `http2Session.request`
* The promisified variants of `setImmediate` and `setTimeout`

Other notable changes:

* doc:
  * revoke deprecation of legacy url, change status to legacy (James M Snell) (#37784)
  * add legacy status to stability index (James M Snell) (#37784)
  * upgrade stability status of report API (Gireesh Punathil) (#35654)
* deps:
  * V8: Backport various patches for Apple Silicon support (BoHong Li) (#38051)
  * update ICU to 68.1 (Michaël Zasso) (#36187)
  * upgrade to libuv 1.41.0 (Colin Ihrig) (#37360)
* http:
  * add http.ClientRequest.getRawHeaderNames() (simov) (#37660)
  * report request start and end with diagnostics\_channel (Stephen Belanger) (#34895)
* util:
  * add getSystemErrorMap() impl (eladkeyshawn) (#38101)

PR-URL: #38507
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