1dd9c9787b
Adds `TRACING_CATEGORY_NODE`, `TRACING_CATEGORY_NODE1` and
`TRACING_CATEGORY_NODE2` helper macros for consistently building
trace event category strings. For instance,
`TRACING_CATEGORY_NODE2(foo, bar)` would generate the category
string `node,node.foo,node.foo.bar`, such that...
```
TRACE_EVENT_NESTABLE_ASYNC_BEGIN0(
TRACING_CATEGORY_NODE2(foo, bar),
"baz", 1);
```
Would emit if trace events are enabled for categories: `node`,
`node.foo`, or `node.foo.bar`.
This allows a natural scoping down of what trace events a user
may want to receive. Enabling the `node` category would receive
everything Node.js produces.
PR-URL: https://github.com/nodejs/node/pull/19155
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
68 lines
2.0 KiB
JavaScript
68 lines
2.0 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const cp = require('child_process');
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const fs = require('fs');
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const CODE =
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'setTimeout(() => { for (var i = 0; i < 100000; i++) { "test" + i } }, 1)';
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const FILE_NAME = 'node_trace.1.log';
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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process.chdir(tmpdir.path);
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const proc = cp.spawn(process.execPath,
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[ '--trace-events-enabled',
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'--trace-event-categories', 'node.async_hooks',
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'-e', CODE ]);
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proc.once('exit', common.mustCall(() => {
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assert(common.fileExists(FILE_NAME));
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fs.readFile(FILE_NAME, common.mustCall((err, data) => {
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const traces = JSON.parse(data.toString()).traceEvents;
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assert(traces.length > 0);
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// V8 trace events should be generated.
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assert(!traces.some((trace) => {
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if (trace.pid !== proc.pid)
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return false;
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if (trace.cat !== 'v8')
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return false;
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if (trace.name !== 'V8.ScriptCompiler')
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return false;
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return true;
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}));
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// C++ async_hooks trace events should be generated.
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assert(traces.some((trace) => {
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if (trace.pid !== proc.pid)
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return false;
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if (trace.cat !== 'node,node.async_hooks')
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return false;
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if (trace.name !== 'TIMERWRAP')
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return false;
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return true;
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}));
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// JavaScript async_hooks trace events should be generated.
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assert(traces.some((trace) => {
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if (trace.pid !== proc.pid)
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return false;
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if (trace.cat !== 'node,node.async_hooks')
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return false;
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if (trace.name !== 'Timeout')
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return false;
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return true;
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}));
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// Check args in init events
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const initEvents = traces.filter((trace) => {
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return (trace.ph === 'b' && !trace.name.includes('_CALLBACK'));
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});
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assert(initEvents.every((trace) => {
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return (trace.args.executionAsyncId > 0 &&
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trace.args.triggerAsyncId > 0);
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}));
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}));
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}));
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