fs: add .ref() and .unref() methods to the StatWatcher and FSWatcher by rickyes · Pull Request #33134 · nodejs/node

rickyes · 2020-04-28T18:04:34Z

add .ref() and .unref() methods to the StatWatcher and FSWatcher classes.

Fixes: #33096

/cc @addaleax

Checklist

make -j4 test (UNIX), or vcbuild test (Windows) passes
documentation is changed or added
commit message follows commit guidelines

…classes

doc/api/fs.md

addaleax · 2020-04-28T18:07:12Z

doc/api/fs.md

+event loop to remain active. If there is no other activity keeping the
+event loop running, the process may exit before the `FSWatcher` object's
+callback is invoked. Calling `watcher.unref()` multiple times will have
+no effect.


These methods should probably also be documented for the return value of .watchFile().

OK, there are other methods like .stop(), I'm not sure if it should be documented in this PR.

lib/fs.js

lib/internal/fs/watchers.js

test/parallel/test-fs-watchfile-ref-unref.js

rickyes · 2020-04-30T09:54:32Z

@addaleax @jasnell I've made some new ones. Please review.

doc/api/fs.md

nodejs-github-bot · 2020-05-07T23:31:48Z

CI: https://ci.nodejs.org/job/node-test-pull-request/31223/

PR-URL: #33134 Fixes: #33096 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>

addaleax · 2020-05-09T05:59:32Z

Landed in be7fd2d :)

PR-URL: #33134 Fixes: #33096 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>

Notable changes: async_hooks: * (SEMVER-MINOR) move PromiseHook handler to JS (Stephen Belanger) #32891 cli: * (SEMVER-MINOR) add `--trace-atomics-wait` flag (Anna Henningsen) #33292 fs: * (SEMVER-MINOR) add .ref() and .unref() methods to watcher classes (rickyes) #33134 http: * (SEMVER-MINOR) expose http.validate-header-name/value (osher) #33119 repl: * (SEMVER-MINOR) deprecate repl._builtinLibs (Ruben Bridgewater) #33294 * (SEMVER-MINOR) remove obsolete completer variable (Ruben Bridgewater) #33294 * (SEMVER-MINOR) deprecate repl.inputStream and repl.outputStream (Ruben Bridgewater) #33294 * (SEMVER-MINOR) improve repl autocompletion for require calls (Ruben Bridgewater) #33282 * (SEMVER-MINOR) replace hard coded core module list with actual list (Ruben Bridgewater) #33282 * (SEMVER-MINOR) show reference errors during preview (Ruben Bridgewater) #33282 * (SEMVER-MINOR) improve repl preview (Ruben Bridgewater) #33282 src: * add support for TLA (Gus Caplan) #30370 test: * (SEMVER-MINOR) refactor test/parallel/test-bootstrap-modules.js (Ruben Bridgewater) #33282 PR-URL: TODO

Notable changes: async_hooks: * (SEMVER-MINOR) move PromiseHook handler to JS (Stephen Belanger) #32891 cli: * (SEMVER-MINOR) add `--trace-atomics-wait` flag (Anna Henningsen) #33292 fs: * (SEMVER-MINOR) add .ref() and .unref() methods to watcher classes (rickyes) #33134 http: * (SEMVER-MINOR) expose http.validate-header-name/value (osher) #33119 repl: * (SEMVER-MINOR) deprecate repl._builtinLibs (Ruben Bridgewater) #33294 * (SEMVER-MINOR) deprecate repl.inputStream and repl.outputStream (Ruben Bridgewater) #33294 * (SEMVER-MINOR) show reference errors during preview (Ruben Bridgewater) #33282 * (SEMVER-MINOR) improve repl preview (Ruben Bridgewater) #33282 src: * add support for TLA (Gus Caplan) #30370 PR-URL: TODO

PR-URL: nodejs/node#33134 Fixes: nodejs/node#33096 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>

fs: add .ref() and .unref() methods to the StatWatcher and FSWatcher …

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…classes

nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. fs Issues and PRs related to the fs subsystem / file system. labels Apr 28, 2020

addaleax added the semver-minor PRs that contain new features and should be released in the next minor version. label Apr 28, 2020

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fs: Add unwatchFile to handle reference counting

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rickyes requested review from addaleax and jasnell April 29, 2020 07:46

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jasnell approved these changes Apr 30, 2020

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doc: document the return value

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addaleax approved these changes May 7, 2020

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addaleax pushed a commit that referenced this pull request May 9, 2020

fs: add .ref() and .unref() methods to watcher classes

be7fd2d

PR-URL: #33134 Fixes: #33096 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>

addaleax closed this May 9, 2020

rickyes deleted the add-unref-ref-in-fswatch branch May 9, 2020 06:00

codebytere pushed a commit that referenced this pull request May 11, 2020

fs: add .ref() and .unref() methods to watcher classes

1dcf66c

PR-URL: #33134 Fixes: #33096 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>

codebytere mentioned this pull request May 18, 2020

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fs: add .ref() and .unref() methods to the StatWatcher and FSWatcher#33134

fs: add .ref() and .unref() methods to the StatWatcher and FSWatcher#33134
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