| # encoding: ascii-8bit |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # |
| |
| module Thrift |
| class BufferedTransport < BaseTransport |
| DEFAULT_BUFFER = 4096 |
| |
| def initialize(transport) |
| @transport = transport |
| @wbuf = '' |
| @rbuf = '' |
| @index = 0 |
| end |
| |
| def open? |
| return @transport.open? |
| end |
| |
| def open |
| @transport.open |
| end |
| |
| def close |
| flush |
| @transport.close |
| end |
| |
| def read(sz) |
| @index += sz |
| ret = @rbuf.slice(@index - sz, sz) || '' |
| |
| if ret.length == 0 |
| @rbuf = @transport.read([sz, DEFAULT_BUFFER].max) |
| @index = sz |
| ret = @rbuf.slice(0, sz) || '' |
| end |
| |
| ret |
| end |
| |
| def write(buf) |
| @wbuf << buf |
| end |
| |
| def flush |
| if @wbuf != '' |
| @transport.write(@wbuf) |
| @wbuf = '' |
| end |
| |
| @transport.flush |
| end |
| end |
| |
| class BufferedTransportFactory < BaseTransportFactory |
| def get_transport(transport) |
| return BufferedTransport.new(transport) |
| end |
| end |
| end |