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import * as os from 'node:os';
// availableParallelism available only since node v19, for older versions use
// cpus() cpus() can return an empty list if /proc is not mounted, use 1 in
// this case
/* c8 ignore start */
const defLimit = 'availableParallelism' in os
    ? Math.max(1, os.availableParallelism() - 1)
    : Math.max(1, os.cpus().length - 1);
export const callLimit = (queue, { limit = defLimit, rejectLate } = {}) => new Promise((res, rej) => {
    let active = 0;
    let current = 0;
    const results = [];
    // Whether or not we rejected, distinct from the rejection just in case the rejection itself is falsey
    let rejected = false;
    let rejection;
    const reject = (er) => {
        if (rejected)
            return;
        rejected = true;
        rejection ??= er;
        if (!rejectLate)
            rej(rejection);
    };
    let resolved = false;
    const resolve = () => {
        if (resolved || active > 0)
            return;
        resolved = true;
        res(results);
    };
    const run = () => {
        const c = current++;
        if (c >= queue.length)
            return rejected ? reject() : resolve();
        active++;
        const step = queue[c];
        /* c8 ignore start */
        if (!step)
            throw new Error('walked off queue');
        /* c8 ignore stop */
        results[c] = step()
            .then(result => {
            active--;
            results[c] = result;
            return result;
        }, er => {
            active--;
            reject(er);
        })
            .then(result => {
            if (rejected && active === 0)
                return rej(rejection);
            run();
            return result;
        });
    };
    for (let i = 0; i < limit; i++)
        run();
});
//# sourceMappingURL=index.js.map

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	index.js	1.77 KB	lrw-r--r--	2026-02-23 03:24:43	Edit Download recursive recursive
	package.json	23 B	lrw-r--r--	2026-02-23 03:24:43	Edit Download recursive recursive