// Default is recursive, if delimiter is set then list non recursive.
		objects := merged.fileInfos(bucket, prefix, delimiter)
		loi.IsTruncated = err == nil && len(objects) > 0
		if limitTo > 0 && len(objects) > limitTo {
			objects = objects[:limitTo]
			loi.IsTruncated = true
		}
		for _, obj := range objects {
			if obj.IsDir && obj.ModTime.IsZero() && delimiter != "" {
				// Only add each once.

            // The rate limiter should still be functional after concurrent access
            assertTrue(concurrentLimiter.checkAttempt("finaluser", "192.168.3.1"),
                    "Rate limiter should still be functional after concurrent operations");

            // Verify that the rate limiter tracked some activity

     * @return true if attempt is allowed, false if rate limited
     * @throws SmbException if account is locked out
     */
    public boolean checkAttempt(String username, String sourceIp) throws SmbException {
        if (closed.get()) {
            throw new IllegalStateException("Rate limiter is closed");
        }

        // Check global rate limit
        if (!checkGlobalRateLimit()) {

    # since we're creating a new limiter for each call, any non-zero limit
    # works (1 is arbitrary)
    exit_limiter = CapacityLimiter(1)
    try:
        yield await run_in_threadpool(cm.__enter__)
    except Exception as e:
        ok = bool(
            await anyio.to_thread.run_sync(
                cm.__exit__, type(e), e, e.__traceback__, limiter=exit_limiter
            )
        )

		return 0
	}
	if limit >= 100*humanize.TiByte {
		// No limit set, or unreasonably high. Ignore
		return 0
	}
	return limit
}

func availableMemory() (available uint64) {
	available = 2048 * blockSizeV2 * 2 // Default to 4 GiB when we can't find the limits.

	if runtime.GOOS == "linux" {
		// Honor cgroup limits if set.
		limit := cgroupMemLimit()
		if limit > 0 {

	m.tlock.RLock()
	defer m.tlock.RUnlock()
	return m.bucketsThrottle[opts]
}

// SetBandwidthLimit sets the bandwidth limit for a bucket
func (m *Monitor) SetBandwidthLimit(bucket, arn string, limit int64) {
	m.tlock.Lock()
	defer m.tlock.Unlock()
	limitBytes := limit / int64(m.NodeCount)
	throttle, ok := m.bucketsThrottle[BucketOptions{Name: bucket, ReplicationARN: arn}]
	if !ok {
		throttle = &bucketThrottle{}

    }

    /**
     * Set the key rotation bytes limit
     *
     * @param limit number of bytes to encrypt before rotating keys
     */
    public void setKeyRotationBytesLimit(long limit) {
        this.keyRotationBytesLimit = limit;
    }

    /**
     * Set the key rotation time limit
     *
     * @param limit time in milliseconds before rotating keys
     */

            return "Free up disk space or use a different location";
        case QUOTA:
            return "Contact administrator to increase quota limits";
        case LOCK:
            return "Release existing locks or wait for them to be released";
        case BUFFER:
            return "Reduce buffer usage or increase buffer pool size";
        case THREAD_POOL:
            return "Reduce concurrent operations or increase thread pool size";

// This will ensure that at most n bytes are returned and EOF is reached.
func HardLimitReader(r io.Reader, n int64) io.Reader { return &HardLimitedReader{r, n} }

// A HardLimitedReader reads from R but limits the amount of
// data returned to just N bytes. Each call to Read
// updates N to reflect the new amount remaining.
// Read returns EOF when N <= 0 or when the underlying R returns EOF.
type HardLimitedReader struct {

 *
 * Performance optimizations:
 * - Uses ConcurrentLinkedQueue for O(1) operations
 * - Lock-free operations for better concurrency
 * - Proper buffer validation and limits
 */
public class BufferCache {

    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    private BufferCache() {
        // Utility class - not instantiable
    }