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What fix is there for loopRunning and signal.addEventListener abort?
sobes.tech AI
Answer from AI
The issue with loopRunning and signal.addEventListener('abort', ...) is often related to the event handler not properly stopping the loop or cleaning up resources when the operation is canceled, which can lead to hangs or leaks.
The fix usually involves:
- Setting a flag in the
abortevent handler (loopRunning = false) to ensure the loop terminates correctly. - Ensuring the event handler is removed after it fires to avoid repeated calls.
- If the loop is asynchronous, using
awaitand checking the flag's state inside the loop.
Example:
let loopRunning = true;
const controller = new AbortController();
const signal = controller.signal;
signal.addEventListener('abort', () => {
loopRunning = false;
});
async function runLoop() {
while (loopRunning) {
// Perform work
await doWork();
if (signal.aborted) break;
}
}
runLoop();
// To cancel
controller.abort();
Thus, the fix is proper management of the loop state via a flag and correct handling of the abort event.