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Configuration error
Configuration error
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import type { startGatewayServer } from "../../gateway/server.js";
import { acquireGatewayLock } from "../../infra/gateway-lock.js";
import {
consumeGatewaySigusr1RestartAuthorization,
isGatewaySigusr1RestartExternallyAllowed,
} from "../../infra/restart.js";
import { createSubsystemLogger } from "../../logging/subsystem.js";
import type { defaultRuntime } from "../../runtime.js";
const gatewayLog = createSubsystemLogger("gateway");
type GatewayRunSignalAction = "stop" | "restart";
export async function runGatewayLoop(params: {
start: () => Promise<Awaited<ReturnType<typeof startGatewayServer>>>;
runtime: typeof defaultRuntime;
}) {
const lock = await acquireGatewayLock();
let server: Awaited<ReturnType<typeof startGatewayServer>> | null = null;
let shuttingDown = false;
let restartResolver: (() => void) | null = null;
const cleanupSignals = () => {
process.removeListener("SIGTERM", onSigterm);
process.removeListener("SIGINT", onSigint);
process.removeListener("SIGUSR1", onSigusr1);
};
const request = (action: GatewayRunSignalAction, signal: string) => {
if (shuttingDown) {
gatewayLog.info(`received ${signal} during shutdown; ignoring`);
return;
}
shuttingDown = true;
const isRestart = action === "restart";
gatewayLog.info(`received ${signal}; ${isRestart ? "restarting" : "shutting down"}`);
const forceExitTimer = setTimeout(() => {
gatewayLog.error("shutdown timed out; exiting without full cleanup");
cleanupSignals();
params.runtime.exit(0);
}, 5000);
void (async () => {
try {
await server?.close({
reason: isRestart ? "gateway restarting" : "gateway stopping",
restartExpectedMs: isRestart ? 1500 : null,
});
} catch (err) {
gatewayLog.error(`shutdown error: ${String(err)}`);
} finally {
clearTimeout(forceExitTimer);
server = null;
if (isRestart) {
shuttingDown = false;
restartResolver?.();
} else {
cleanupSignals();
params.runtime.exit(0);
}
}
})();
};
const onSigterm = () => {
gatewayLog.info("signal SIGTERM received");
request("stop", "SIGTERM");
};
const onSigint = () => {
gatewayLog.info("signal SIGINT received");
request("stop", "SIGINT");
};
const onSigusr1 = () => {
gatewayLog.info("signal SIGUSR1 received");
const authorized = consumeGatewaySigusr1RestartAuthorization();
if (!authorized && !isGatewaySigusr1RestartExternallyAllowed()) {
gatewayLog.warn(
"SIGUSR1 restart ignored (not authorized; enable commands.restart or use gateway tool).",
);
return;
}
request("restart", "SIGUSR1");
};
process.on("SIGTERM", onSigterm);
process.on("SIGINT", onSigint);
process.on("SIGUSR1", onSigusr1);
try {
// Keep process alive; SIGUSR1 triggers an in-process restart (no supervisor required).
// SIGTERM/SIGINT still exit after a graceful shutdown.
// eslint-disable-next-line no-constant-condition
while (true) {
server = await params.start();
await new Promise<void>((resolve) => {
restartResolver = resolve;
});
}
} finally {
await lock?.release();
cleanupSignals();
}
}
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