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5c27e44488
Removes the requirement to use `--trace-events-enabled` to enable
trace events. Tracing is enabled automatically if there are any
enabled categories.
Adds a new `trace_events` module with an API for enabling/disabling
trace events at runtime without a command line flag.
```js
const trace_events = require('trace_events');
const categories = [ 'node.perf', 'node.async_hooks' ];
const tracing = trace_events.createTracing({ categories });
tracing.enable();
// do stuff
tracing.disable();
```
Multiple `Tracing` objects may exist and be enabled at any point
in time. The enabled trace event categories is the union of all
enabled `Tracing` objects and the `--trace-event-categories`
flag.
PR-URL: https://github.com/nodejs/node/pull/19803
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
62 lines
1.6 KiB
Markdown
62 lines
1.6 KiB
Markdown
@// NB(chrisdickinson): if you move this file, be sure to update
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@// tools/doc/html.js to point at the new location.
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<!--introduced_in=v0.10.0-->
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* [About these Docs](documentation.html)
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* [Usage & Example](synopsis.html)
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<div class="line"></div>
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* [Assertion Testing](assert.html)
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* [Async Hooks](async_hooks.html)
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* [Buffer](buffer.html)
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* [C++ Addons](addons.html)
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* [C/C++ Addons - N-API](n-api.html)
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* [Child Processes](child_process.html)
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* [Cluster](cluster.html)
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* [Command Line Options](cli.html)
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* [Console](console.html)
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* [Crypto](crypto.html)
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* [Debugger](debugger.html)
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* [Deprecated APIs](deprecations.html)
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* [DNS](dns.html)
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* [Domain](domain.html)
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* [ECMAScript Modules](esm.html)
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* [Errors](errors.html)
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* [Events](events.html)
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* [File System](fs.html)
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* [Globals](globals.html)
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* [HTTP](http.html)
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* [HTTP/2](http2.html)
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* [HTTPS](https.html)
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* [Inspector](inspector.html)
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* [Internationalization](intl.html)
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* [Modules](modules.html)
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* [Net](net.html)
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* [OS](os.html)
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* [Path](path.html)
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* [Performance Hooks](perf_hooks.html)
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* [Process](process.html)
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* [Punycode](punycode.html)
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* [Query Strings](querystring.html)
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* [Readline](readline.html)
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* [REPL](repl.html)
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* [Stream](stream.html)
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* [String Decoder](string_decoder.html)
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* [Timers](timers.html)
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* [TLS/SSL](tls.html)
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* [Trace Events](tracing.html)
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* [TTY](tty.html)
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* [UDP/Datagram](dgram.html)
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* [URL](url.html)
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* [Utilities](util.html)
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* [V8](v8.html)
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* [VM](vm.html)
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* [ZLIB](zlib.html)
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<div class="line"></div>
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* [GitHub Repo & Issue Tracker](https://github.com/nodejs/node)
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* [Mailing List](https://groups.google.com/group/nodejs)
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