@dioxide-js/silas
Version:
RPC utility for Silas
50 lines (38 loc) • 1.42 kB
JavaScript
import CanceledError from '../cancel/CanceledError.mjs';
import AxiosError from '../core/AxiosError.mjs';
import utils from '../utils.mjs';
const composeSignals = (signals, timeout) => {
const {length} = (signals = signals ? signals.filter(Boolean) : []);
if (timeout || length) {
let controller = new AbortController();
let aborted;
const onabort = function (reason) {
if (!aborted) {
aborted = true;
unsubscribe();
const err = reason instanceof Error ? reason : this.reason;
controller.abort(err instanceof AxiosError ? err : new CanceledError(err instanceof Error ? err.message : err));
}
};
let timer = timeout && setTimeout(() => {
timer = null;
onabort(new AxiosError(`timeout ${timeout} of ms exceeded`, AxiosError.ETIMEDOUT));
}, timeout);
const unsubscribe = () => {
if (signals) {
timer && clearTimeout(timer);
timer = null;
signals.forEach(signal => {
signal.unsubscribe ? signal.unsubscribe(onabort) : signal.removeEventListener('abort', onabort);
});
signals = null;
}
};
signals.forEach((signal) => signal.addEventListener('abort', onabort));
const {signal} = controller;
signal.unsubscribe = () => utils.asap(unsubscribe);
return signal;
}
};
export { composeSignals as default };
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