public class SmbNamedPipe extends SmbFile {

    /**
     * The pipe should be opened read-only.
     */

    public static final int PIPE_TYPE_RDONLY = O_RDONLY;

    /**
     * The pipe should be opened only for writing.
     */

    public static final int PIPE_TYPE_WRONLY = O_WRONLY;

    /**
     * The pipe should be opened for both reading and writing.
     */

        if( isOpen() ) {
            return;
        }
        fid = open0( flags, access, attrs, options );
        opened = true;
        tree_num = tree.tree_num;
    }
    boolean isOpen() {
        boolean ans = opened && isConnected() && tree_num == tree.tree_num;
        return ans;
    }
    void close( int f, long lastWriteTime ) throws SmbException {

        handle.sendrecv(rpc);
        if ( rpc.retval != 0 ) {
            throw new SmbException(rpc.retval, false);
        }
        this.opened = true;
    }


    @Override
    public synchronized void close () throws IOException {
        if ( this.opened ) {
            this.opened = false;
            MsrpcSamrCloseHandle rpc = new MsrpcSamrCloseHandle(this);
            this.handle.sendrecv(rpc);

    /**
     * Get the next set of changes
     * 
     * Will block until the server returns a set of changes that match the given filter. The file will be automatically
     * opened if it is not and should be closed with {@link #close()} when no longer
     * needed.
     * 
     * Closing the context should cancel a pending notify request, but that does not seem to work reliable in all

        }
        file.open( openFlags, access | SmbConstants.FILE_WRITE_DATA, SmbFile.ATTR_NORMAL, 0 );
        this.openFlags &= ~(SmbFile.O_CREAT | SmbFile.O_TRUNC); /* in case close and reopen */
        writeSize = file.tree.session.transport.snd_buf_size - 70;

        useNTSmbs = file.tree.session.transport.hasCapability( ServerMessageBlock.CAP_NT_SMBS );
        if( useNTSmbs ) {

            this.writeSizeFile = sendBufferSize;
            return;
        }

        this.openFlags &= ~ ( SmbConstants.O_CREAT | SmbConstants.O_TRUNC ); /* in case we close and reopen */
        this.writeSize = sendBufferSize - 70;

        this.useNTSmbs = th.hasCapability(SmbConstants.CAP_NT_SMBS);
        if ( !this.useNTSmbs ) {
            log.debug("No support for NT SMBs");
        }

        handle.sendrecv(rpc);
        if ( rpc.retval != 0 ) {
            throw new SmbException(rpc.retval, false);
        }
        this.opened = true;
    }


    @Override
    public synchronized void close () throws IOException {
        if ( this.opened ) {
            this.opened = false;
            MsrpcLsarClose rpc = new MsrpcLsarClose(this);
            this.handle.sendrecv(rpc);
            if ( rpc.retval != 0 ) {

    void close () throws CIFSException;


    /**
     * @throws CIFSException
     * 
     */
    void release () throws CIFSException;


    /**
     * @return the file size when it was opened
     */
    long getInitialSize ();

            pipe.send( req, resp );
            if( resp.status == TransPeekNamedPipeResponse.STATUS_DISCONNECTED ||
                    resp.status == TransPeekNamedPipeResponse.STATUS_SERVER_END_CLOSED ) {
                file.opened = false;
                return 0;
            }
            return resp.available;
        } catch (SmbException se) {
            throw seToIoe(se);
        }
    }
/**

    /**
     * The pipe should be opened read-only.
     */

    public static final int PIPE_TYPE_RDONLY = SmbConstants.O_RDONLY;

    /**
     * The pipe should be opened only for writing.
     */

    public static final int PIPE_TYPE_WRONLY = SmbConstants.O_WRONLY;

    /**
     * The pipe should be opened for both reading and writing.
     */