@earendil-works/pi-ai/dist/utils/abort-signals.js

Unified LLM API with automatic model discovery and provider configuration

export function combineAbortSignals(signals) {
    const activeSignals = signals.filter((signal) => signal !== undefined);
    if (activeSignals.length === 0) {
        return { cleanup: () => { } };
    }
    if (activeSignals.length === 1) {
        return { signal: activeSignals[0], cleanup: () => { } };
    }
    const controller = new AbortController();
    const listeners = [];
    const abort = (signal) => {
        if (!controller.signal.aborted) {
            controller.abort(signal.reason);
        }
    };
    for (const signal of activeSignals) {
        if (signal.aborted) {
            abort(signal);
            break;
        }
        const listener = () => abort(signal);
        signal.addEventListener("abort", listener, { once: true });
        listeners.push({ signal, listener });
    }
    return {
        signal: controller.signal,
        cleanup: () => {
            for (const { signal, listener } of listeners) {
                signal.removeEventListener("abort", listener);
            }
        },
    };
}
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