*
 * Credits are used to control the flow of messages between
 * RDMA peers to prevent buffer overflow.
 */
public class RdmaCredits {

    private int initialCredits;
    private int creditsGranted;

    /**
     * Create new RDMA credits manager
     */
    public RdmaCredits() {
        this.initialCredits = RdmaCapabilities.DEFAULT_SEND_CREDIT_TARGET;
        this.creditsGranted = 0;
    }

    /**

        props.setProperty("jcifs.smb.client.rdmaMaxSendSize", "131072");
        props.setProperty("jcifs.smb.client.rdmaMaxReceiveSize", "131072");
        props.setProperty("jcifs.smb.client.rdmaCredits", "512");

        PropertyConfiguration config = new PropertyConfiguration(props);

        assertTrue(config.isUseRDMA(), "RDMA should be enabled");

    // Connection state
    /** Current connection state */
    protected volatile RdmaConnectionState state;
    /** Credit management for SMB Direct */
    protected RdmaCredits credits;
    /** Maximum size for fragmented operations */
    protected int maxFragmentedSize;
    /** Maximum size for RDMA read/write operations */
    protected int maxReadWriteSize;

    /**