Brunobkr/llama.cpp_AlgMor24_github

1// this spawns a child process that listens for SIGHUP when the2// parent process exits, and after 200ms, sends a SIGKILL to the3// child, in case it did not terminate.4import { spawn } from 'child_process';5const watchdogCode = String.raw `6const pid = parseInt(process.argv[1], 10)7process.title = 'node (foreground-child watchdog pid=' + pid + ')'8if (!isNaN(pid)) {9  let barked = false10  // keepalive11  const interval = setInterval(() => {}, 60000)12  const bark = () => {13    clearInterval(interval)14    if (barked) return15    barked = true16    process.removeListener('SIGHUP', bark)17    setTimeout(() => {18      try {19        process.kill(pid, 'SIGKILL')20        setTimeout(() => process.exit(), 200)21      } catch (_) {}22    }, 500)23  })24  process.on('SIGHUP', bark)25}26`;27/**28 * Pass in a ChildProcess, and this will spawn a watchdog process that29 * will make sure it exits if the parent does, thus preventing any30 * dangling detached zombie processes.31 *32 * If the child ends before the parent, then the watchdog will terminate.33 */34export const watchdog = (child) => {35    let dogExited = false;36    const dog = spawn(process.execPath, ['-e', watchdogCode, String(child.pid)], {37        stdio: 'ignore',38    });39    dog.on('exit', () => (dogExited = true));40    child.on('exit', () => {41        if (!dogExited)42            dog.kill('SIGKILL');43    });44    return dog;45};46//# sourceMappingURL=watchdog.js.map