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'use strict';
const common = require('../common');
const { MessageChannel } = require('worker_threads');
const { createHook } = require('async_hooks');
const { strictEqual } = require('assert');
const handles = [];
createHook({
init(asyncId, type, triggerAsyncId, resource) {
if (type === 'MESSAGEPORT') {
handles.push(resource);
}
}
}).enable();
const { port1, port2 } = new MessageChannel();
strictEqual(handles[0], port1);
strictEqual(handles[1], port2);
strictEqual(handles[0].hasRef(), false);
strictEqual(handles[1].hasRef(), false);
port1.unref();
strictEqual(handles[0].hasRef(), false);
port1.ref();
strictEqual(handles[0].hasRef(), true);
port1.unref();
strictEqual(handles[0].hasRef(), false);
port1.on('message', () => {});
strictEqual(handles[0].hasRef(), true);
port2.unref();
strictEqual(handles[1].hasRef(), false);
port2.ref();
strictEqual(handles[1].hasRef(), true);
port2.unref();
strictEqual(handles[1].hasRef(), false);
port2.on('message', () => {});
strictEqual(handles[0].hasRef(), true);
port1.on('close', common.mustCall(() => {
strictEqual(handles[0].hasRef(), false);
strictEqual(handles[1].hasRef(), false);
}));
port2.close();
strictEqual(handles[0].hasRef(), true);
strictEqual(handles[1].hasRef(), true);
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