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99 lines
3.6 KiB
99 lines
3.6 KiB
/* eslint-disable no-debugger */
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// Flags: --expose_internals
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const cluster = require('cluster');
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const net = require('net');
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const Protocol = require('_debugger').Protocol;
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if (common.isWindows) {
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common.skip('SCHED_RR not reliable on Windows');
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return;
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}
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cluster.schedulingPolicy = cluster.SCHED_RR;
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// Worker sends back a "I'm here" message, then immediately suspends
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// inside the debugger. The master connects to the debug agent first,
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// connects to the TCP server second, then disconnects the worker and
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// unsuspends it again. The ultimate goal of this tortured exercise
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// is to make sure the connection is still sitting in the master's
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// pending handle queue.
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if (cluster.isMaster) {
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let isKilling = false;
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const handles = require('internal/cluster/utils').handles;
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const address = common.hasIPv6 ? '[::1]' : common.localhostIPv4;
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cluster.setupMaster({ execArgv: [`--debug=${address}:${common.PORT}`] });
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const worker = cluster.fork();
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worker.once('exit', common.mustCall((code, signal) => {
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assert.strictEqual(code, 0, 'worker did not exit normally');
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assert.strictEqual(signal, null, 'worker did not exit normally');
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}));
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worker.on('message', common.mustCall((message) => {
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assert.strictEqual(Array.isArray(message), true);
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assert.strictEqual(message[0], 'listening');
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let continueRecv = false;
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const address = message[1];
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const host = address.address;
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const debugClient = net.connect({ host, port: common.PORT });
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const protocol = new Protocol();
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debugClient.setEncoding('utf8');
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debugClient.on('data', (data) => protocol.execute(data));
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debugClient.once('connect', common.mustCall(() => {
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protocol.onResponse = common.mustCall((res) => {
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protocol.onResponse = (res) => {
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// It can happen that the first continue was sent before the break
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// event was received. If that's the case, send also a continue from
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// here so the worker exits
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if (res.body.command === 'continue') {
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continueRecv = true;
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} else if (res.body.event === 'break' && continueRecv) {
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const req = protocol.serialize({ command: 'continue' });
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debugClient.write(req);
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}
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};
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const conn = net.connect({ host, port: address.port });
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conn.once('connect', common.mustCall(() => {
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conn.destroy();
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assert.notDeepStrictEqual(handles, {});
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worker.disconnect();
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assert.deepStrictEqual(handles, {});
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// Always send the continue, as the break event might have already
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// been received.
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const req = protocol.serialize({ command: 'continue' });
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debugClient.write(req);
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}));
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});
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}));
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}));
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process.on('exit', () => assert.deepStrictEqual(handles, {}));
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process.on('uncaughtException', function(ex) {
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// Make sure we clean up so as not to leave a stray worker process running
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// if we encounter a connection or other error
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if (!worker.isDead()) {
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if (!isKilling) {
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isKilling = true;
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worker.once('exit', function() {
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throw ex;
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});
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worker.process.kill();
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}
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return;
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}
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throw ex;
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});
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} else {
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const server = net.createServer((socket) => socket.pipe(socket));
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const cb = () => {
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process.send(['listening', server.address()]);
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debugger;
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};
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if (common.hasIPv6)
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server.listen(0, '::1', cb);
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else
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server.listen(0, common.localhostIPv4, cb);
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process.on('disconnect', process.exit);
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}
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