*/
    public boolean canSend() {
        return sendCredits.get() > 0 && state == RdmaConnectionState.ESTABLISHED;
    }

    /**
     * Consume a send credit
     */
    public void consumeSendCredit() {
        sendCredits.decrementAndGet();
    }

    /**
     * Grant a send credit
     */
    public void grantSendCredit() {
        sendCredits.incrementAndGet();
    }

    /**