// GetNonBlocking will return the singleton value or nil if not set yet.
func (s *Singleton[T]) GetNonBlocking() *T {
	select {
	case <-s.set:
		return s.v
	default:
		return nil
	}
}

// IsSet will return whether the singleton has been set.
func (s *Singleton[T]) IsSet() bool {
	select {
	case <-s.set:
		return true
	default:
		return false
	}
}

// Set the value and unblock all Get requests.

//
// If no SSE headers are present then IsRequested returns false
// and no Type.
func IsRequested(h http.Header) (Type, bool) {
	switch {
	case S3.IsRequested(h):
		return S3, true
	case S3KMS.IsRequested(h):
		return S3KMS, true
	case SSEC.IsRequested(h):
		return SSEC, true
	default:
		return nil, false
	}
}

// Requested returns whether any type of encryption is requested.

}

// Seek implements the [io.Seeker] interface.
func (r *Reader) Seek(offset int64, whence int) (int64, error) {
	r.prevRune = -1
	var abs int64
	switch whence {
	case io.SeekStart:
		abs = offset
	case io.SeekCurrent:
		abs = r.i + offset
	case io.SeekEnd:
		abs = int64(len(r.s)) + offset
	default:
		return 0, errors.New("bytes.Reader.Seek: invalid whence")
	}
	if abs < 0 {

        if (entry == null)
            return;

        switch (changeType) {
        case FILE_ADDED:
            // Invalidate cache - we need to fetch new file info
            entry.invalidate();
            break;

        case FILE_REMOVED:
            entry.removeChild(childName);
            break;

        case FILE_MODIFIED:
            // Remove from cache to force refresh

        boolean packaged = false;
        for (String phase : getLifecycles(project)) {
            switch (phase) {
                case "clean":
                    packaged = false;
                    break;
                case "package":
                case "install":
                case "deploy":
                    packaged = true;
                    break;
                default:
                    break;

	events := make([]Event, len(objs))
	var newerNoncurrentVersions int
loop:
	for i, obj := range objs {
		event := e.policy.eval(obj, now, newerNoncurrentVersions)
		switch event.Action {
		case DeleteAllVersionsAction, DelMarkerDeleteAllVersionsAction:
			// Skip if bucket has object locking enabled; To prevent the
			// possibility of violating an object retention on one of the
			// noncurrent versions of this object.

            }

            switch (SessionServicePacket.readPacketType(in, header, 0)) {
            case SessionServicePacket.SESSION_KEEP_ALIVE:
                break;
            case SessionServicePacket.SESSION_MESSAGE:
                bip = SessionServicePacket.readLength(header, 0);
                break;
            case -1:
                if (tot > 0) {
                    return tot;
                }

// CSR symbolic names and whether that instruction expects a register
// or an immediate source operand.
func IsRISCV64CSRO(op obj.As) (imm bool, ok bool) {
	switch op {
	case riscv.ACSRRCI, riscv.ACSRRSI, riscv.ACSRRWI:
		imm = true
		fallthrough
	case riscv.ACSRRC, riscv.ACSRRS, riscv.ACSRRW:
		ok = true
	}
	return
}

var riscv64SpecialOperand map[string]riscv.SpecialOperand

			}
			for {
				select {
				case <-nowBlocking:
					return
				case <-st.Done():
				case st.Requests <- []byte{1}:
					time.Sleep(10 * time.Millisecond)
				}
			}
		}()
	}
	// Check that local returned.
	err = st.Results(func(b []byte) error {
		<-st.Done()
		return ctx.Err()
	})
	mu.Lock()
	select {
	case <-nowBlocking:
	default:

    int readDataWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return switch (informationLevel) {
        case SMB_INFO_ALLOCATION -> readSmbInfoAllocationWireFormat(buffer, bufferIndex);
        case SMB_QUERY_FS_SIZE_INFO -> readSmbQueryFSSizeInfoWireFormat(buffer, bufferIndex);
        case SMB_FS_FULL_SIZE_INFORMATION -> readFsFullSizeInformationWireFormat(buffer, bufferIndex);
        default -> 0;
        };
    }