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Contents?: true
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Versions: 33
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Stored size: 1.28 KB
Contents
"use strict";
// this spawns a child process that listens for SIGHUP when the
// parent process exits, and after 200ms, sends a SIGKILL to the
// child, in case it did not terminate.
Object.defineProperty(exports, "__esModule", { value: true });
exports.watchdog = void 0;
const child_process_1 = require("child_process");
const watchdogCode = String.raw `
const pid = parseInt(process.argv[1], 10)
process.title = 'node (foreground-child watchdog pid=' + pid + ')'
if (!isNaN(pid)) {
let barked = false
// keepalive
const interval = setInterval(() => {}, 60000)
const bark = () => {
clearInterval(interval)
if (barked) return
barked = true
process.removeListener('SIGHUP', bark)
setTimeout(() => {
try {
process.kill(pid, 'SIGKILL')
setTimeout(() => process.exit(), 200)
} catch (_) {}
}, 500)
})
process.on('SIGHUP', bark)
}
`;
const watchdog = (child) => {
let dogExited = false;
const dog = (0, child_process_1.spawn)(process.execPath, ['-e', watchdogCode, String(child.pid)], {
stdio: 'ignore',
});
dog.on('exit', () => (dogExited = true));
child.on('exit', () => {
if (!dogExited)
dog.kill('SIGTERM');
});
return dog;
};
exports.watchdog = watchdog;
//# sourceMappingURL=watchdog.js.map
Version data entries
33 entries across 33 versions & 1 rubygems