*
     * @return true if valid, false if invalidated
     */
    public boolean isValid() {
        return valid;
    }

    /**
     * Invalidate this memory region
     *
     * After invalidation, the region cannot be used for RDMA operations.
     */
    public abstract void invalidate();

    /**
     * Generate local key for this memory region
     *

        }
        buf.readOctetArray(contextHandle, 0, 20);
    }

    /**
     * Checks if the context handle has been invalidated (all zeros).
     * A successful unregistration typically results in a zeroed context handle.
     *
     * @return true if the context handle has been invalidated
     */
    public boolean isContextHandleInvalidated() {
        if (contextHandle == null) {
            return true;

    }

    @Override
    public void invalidate() {
        if (valid && memoryRegister != null) {
            try {
                // In real implementation, this would deregister the memory:
                // memoryRegister.deregisterMemory();

                log.debug("DiSNI memory region invalidated");
            } catch (Exception e) {

    }

    /**
     * Repositions this stream to the position at the time the mark method was last called.
     *
     * @throws IOException if this stream has not been marked or if the mark has been invalidated
     */
    @Override
    public synchronized void reset() throws IOException {
        inputStream.reset();
    }

    /**
     * Skips over and discards n bytes of data from this input stream.

        excludeFilterCache.invalidate(sessionId);
    }

    /**
     * Deletes all URL filters for the specified session.
     *
     * @param sessionId The session ID.
     */
    @Override
    public void delete(final String sessionId) {
        deleteBySessionId(sessionId);
        includeFilterCache.invalidate(sessionId);
        excludeFilterCache.invalidate(sessionId);
    }

    /**

    }

    /**
     * Extracts the filename from the parameters.
     *
     * <p>Note: The input stream is validated for consistency with the Extractor interface,
     * but is not actually read. Only the resource name from the parameters is used.</p>
     *
     * @param in The input stream (validated but not read)
     * @param params The parameters map, expected to contain ExtractData.RESOURCE_NAME_KEY

	<script type="text/javascript" src="${fe:url('/js/suggestor.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/search.js')}"></script>
</body>
${fe:html(false)}

	<script type="text/javascript" src="${fe:url('/js/suggestor.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/search.js')}"></script>
</body>
${fe:html(false)}

	<script type="text/javascript" src="${fe:url('/js/suggestor.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/search.js')}"></script>
</body>
${fe:html(false)}

     * @param access access permissions (ignored for TCP)
     */
    public TcpMemoryRegion(ByteBuffer buffer, EnumSet<RdmaAccess> access) {
        super(buffer, access);
    }

    @Override
    public void invalidate() {
        // No real invalidation needed for TCP
        valid = false;
    }

    @Override
    protected int generateLocalKey() {
        return keyGenerator.getAndIncrement();
    }

    @Override