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'use strict';
const common = require('../common');
const assert = require('assert');
const vm = require('vm');
const spawn = require('child_process').spawn;
if (process.platform === 'win32') {
// No way to send CTRL_C_EVENT to processes from JS right now.
common.skip('platform not supported');
return;
}
if (process.argv[2] === 'child') {
const parent = +process.env.REPL_TEST_PPID;
assert.ok(parent);
let firstHandlerCalled = 0;
process.on('SIGINT', common.mustCall(() => {
firstHandlerCalled++;
// Handler attached _before_ execution.
}, 2));
let onceHandlerCalled = 0;
process.once('SIGINT', common.mustCall(() => {
onceHandlerCalled++;
// Handler attached _before_ execution.
}));
assert.throws(() => {
vm.runInThisContext(`process.kill(${parent}, 'SIGUSR2'); while(true) {}`, {
breakOnSigint: true
});
}, /Script execution interrupted/);
assert.strictEqual(firstHandlerCalled, 0);
assert.strictEqual(onceHandlerCalled, 0);
// Keep the process alive for a while so that the second SIGINT can be caught.
const timeout = setTimeout(() => {}, 1000);
let afterHandlerCalled = 0;
process.on('SIGINT', common.mustCall(() => {
// Handler attached _after_ execution.
if (afterHandlerCalled++ == 0) {
// The first time it just bounces back to check that the `once()`
// handler is not called the second time.
process.kill(parent, 'SIGUSR2');
return;
}
assert.strictEqual(onceHandlerCalled, 1);
assert.strictEqual(firstHandlerCalled, 2);
timeout.unref();
}, 2));
process.kill(parent, 'SIGUSR2');
return;
}
process.env.REPL_TEST_PPID = process.pid;
const child = spawn(process.execPath, [ __filename, 'child' ], {
stdio: [null, 'inherit', 'inherit']
});
process.on('SIGUSR2', common.mustCall(() => {
// First kill() breaks the while(true) loop, second one invokes the real
// signal handlers.
process.kill(child.pid, 'SIGINT');
}, 3));
child.on('close', function(code, signal) {
assert.strictEqual(signal, null);
assert.strictEqual(code, 0);
});
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