Summary: First draft. Unit tests pass. Test Plan: unit tests attached Reviewers: heyongqiang Reviewed By: heyongqiang Differential Revision: https://reviews.facebook.net/D3969
165 lines
4.7 KiB
C++
165 lines
4.7 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef THRIFT_ASYNC_TZLIBASYNCCHANNEL_H_
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#define THRIFT_ASYNC_TZLIBASYNCCHANNEL_H_ 1
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#include "thrift/lib/cpp/async/TAsyncEventChannel.h"
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#include "thrift/lib/cpp/transport/TZlibTransport.h"
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namespace apache { namespace thrift { namespace async {
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class TZlibAsyncChannel : public TAsyncEventChannel {
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public:
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TZlibAsyncChannel(const boost::shared_ptr<TAsyncEventChannel>& channel);
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/**
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* Helper function to create a shared_ptr<TZlibAsyncChannel>.
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*
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* This passes in the correct destructor object, since TZlibAsyncChannel's
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* destructor is protected and cannot be invoked directly.
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*/
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static boost::shared_ptr<TZlibAsyncChannel> newChannel(
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const boost::shared_ptr<TAsyncEventChannel>& channel) {
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return boost::shared_ptr<TZlibAsyncChannel>(
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new TZlibAsyncChannel(channel), Destructor());
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}
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virtual bool readable() const {
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return channel_->readable();
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}
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virtual bool good() const {
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return channel_->good();
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}
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virtual bool error() const {
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return channel_->error();
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}
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virtual bool timedOut() const {
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return channel_->timedOut();
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}
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virtual bool isIdle() const {
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return channel_->isIdle();
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}
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virtual void sendMessage(const VoidCallback& cob,
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const VoidCallback& errorCob,
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transport::TMemoryBuffer* message);
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virtual void recvMessage(const VoidCallback& cob,
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const VoidCallback& errorCob,
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transport::TMemoryBuffer* message);
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virtual void sendAndRecvMessage(const VoidCallback& cob,
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const VoidCallback& errorCob,
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transport::TMemoryBuffer* sendBuf,
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transport::TMemoryBuffer* recvBuf);
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virtual boost::shared_ptr<TAsyncTransport> getTransport() {
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return channel_->getTransport();
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}
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virtual void attachEventBase(TEventBase* eventBase) {
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channel_->attachEventBase(eventBase);
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}
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virtual void detachEventBase() {
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channel_->detachEventBase();
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}
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virtual uint32_t getRecvTimeout() const {
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return channel_->getRecvTimeout();
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}
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virtual void setRecvTimeout(uint32_t milliseconds) {
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channel_->setRecvTimeout(milliseconds);
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}
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protected:
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/**
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* Protected destructor.
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*
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* Users of TZlibAsyncChannel must never delete it directly. Instead,
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* invoke destroy().
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*/
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virtual ~TZlibAsyncChannel() { }
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private:
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class SendRequest {
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public:
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SendRequest();
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bool isSet() const {
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return static_cast<bool>(callback_);
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}
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void set(const VoidCallback& callback,
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const VoidCallback& errorCallback,
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transport::TMemoryBuffer* message);
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void send(TAsyncEventChannel* channel);
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private:
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void invokeCallback(VoidCallback callback);
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void sendSuccess();
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void sendError();
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boost::shared_ptr<transport::TMemoryBuffer> compressedBuffer_;
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transport::TZlibTransport zlibTransport_;
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VoidCallback sendSuccess_;
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VoidCallback sendError_;
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VoidCallback callback_;
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VoidCallback errorCallback_;
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};
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class RecvRequest {
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public:
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RecvRequest();
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bool isSet() const {
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return static_cast<bool>(callback_);
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}
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void set(const VoidCallback& callback,
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const VoidCallback& errorCallback,
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transport::TMemoryBuffer* message);
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void recv(TAsyncEventChannel* channel);
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private:
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void invokeCallback(VoidCallback callback);
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void recvSuccess();
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void recvError();
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boost::shared_ptr<transport::TMemoryBuffer> compressedBuffer_;
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transport::TZlibTransport zlibTransport_;
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VoidCallback recvSuccess_;
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VoidCallback recvError_;
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VoidCallback callback_;
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VoidCallback errorCallback_;
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transport::TMemoryBuffer *callbackBuffer_;
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};
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boost::shared_ptr<TAsyncEventChannel> channel_;
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// TODO: support multiple pending send requests
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SendRequest sendRequest_;
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RecvRequest recvRequest_;
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};
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}}} // apache::thrift::async
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#endif // THRIFT_ASYNC_TZLIBASYNCCHANNEL_H_
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