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c64c9149ad
Previously we assume that the objects are GC'ed after one global.gc() returns, which is not necessarily always the case. Use gcUntil() to run GC multiple times if they are not GC'ed in the first time around. PR-URL: https://github.com/nodejs/node/pull/49053 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
// Flags: --expose-gc
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'use strict';
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const common = require('../common');
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const onGC = require('../common/ongc');
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const assert = require('assert');
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const async_hooks = require('async_hooks');
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const domain = require('domain');
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const EventEmitter = require('events');
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const isEnumerable = Function.call.bind(Object.prototype.propertyIsEnumerable);
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// This test makes sure that the (async id → domain) map which is part of the
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// domain module does not get in the way of garbage collection.
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// See: https://github.com/nodejs/node/issues/23862
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let d = domain.create();
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let resourceGCed = false; let domainGCed = false; let
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emitterGCed = false;
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d.run(() => {
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const resource = new async_hooks.AsyncResource('TestResource');
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const emitter = new EventEmitter();
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d.remove(emitter);
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d.add(emitter);
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emitter.linkToResource = resource;
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assert.strictEqual(emitter.domain, d);
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assert.strictEqual(isEnumerable(emitter, 'domain'), false);
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assert.strictEqual(resource.domain, d);
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assert.strictEqual(isEnumerable(resource, 'domain'), false);
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// This would otherwise be a circular chain now:
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// emitter → resource → async id ⇒ domain → emitter.
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// Make sure that all of these objects are released:
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onGC(resource, { ongc: common.mustCall(() => { resourceGCed = true; }) });
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onGC(d, { ongc: common.mustCall(() => { domainGCed = true; }) });
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onGC(emitter, { ongc: common.mustCall(() => { emitterGCed = true; }) });
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});
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d = null;
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async function main() {
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await common.gcUntil(
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'All objects garbage collected',
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() => resourceGCed && domainGCed && emitterGCed);
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}
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main();
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