mirror of https://github.com/facebook/rocksdb.git
147 lines
4.1 KiB
C++
147 lines
4.1 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_TBINARYASYNCCHANNEL_H_
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#define THRIFT_ASYNC_TBINARYASYNCCHANNEL_H_ 1
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#include "thrift/lib/cpp/async/TUnframedAsyncChannel.h"
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namespace apache { namespace thrift { namespace async {
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namespace detail {
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/**
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* A class to determine the end of a raw TBinaryProtocol message.
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*/
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class TBinaryACProtocolTraits {
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public:
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TBinaryACProtocolTraits() : strictRead_(true) {}
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// Methods required by TUnframedACReadState
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bool getMessageLength(uint8_t* buffer,
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uint32_t bufferLength,
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uint32_t* messageLength);
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// Methods specific to TBinaryAsyncChannel
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void setStrictRead(bool strictRead) {
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strictRead_ = strictRead;
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}
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bool getStrictRead() const {
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return strictRead_;
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}
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private:
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bool strictRead_;
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};
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} // namespace detail
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/**
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* TBinaryAsyncChannel
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*
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* This is a TAsyncChannel implementation that reads and writes raw (unframed)
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* messages encoded using TBinaryProtocol.
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*/
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class TBinaryAsyncChannel :
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public TUnframedAsyncChannel<detail::TBinaryACProtocolTraits> {
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private:
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typedef TUnframedAsyncChannel<detail::TBinaryACProtocolTraits> Parent;
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public:
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TBinaryAsyncChannel(const boost::shared_ptr<TAsyncTransport>& transport)
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: Parent(transport) {}
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/**
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* Helper function to create a shared_ptr<TBinaryAsyncChannel>.
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*
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* This passes in the correct destructor object, since TBinaryAsyncChannel'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<TBinaryAsyncChannel> newChannel(
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const boost::shared_ptr<TAsyncTransport>& transport) {
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return boost::shared_ptr<TBinaryAsyncChannel>(
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new TBinaryAsyncChannel(transport), Destructor());
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}
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// Note that we inherit setMaxMessageSize() and getMaxMessageSize()
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// from TUnframedAsyncChannel.
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void setStrictRead(bool strictRead) {
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readState_.getProtocolTraits()->setStrictRead(strictRead);
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}
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bool getStrictRead() const {
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return readState_.getProtocolTraits()->getStrictRead();
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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 TBinaryAsyncChannel must never delete it directly. Instead,
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* invoke destroy().
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*/
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virtual ~TBinaryAsyncChannel() { }
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};
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class TBinaryAsyncChannelFactory : public TStreamAsyncChannelFactory {
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public:
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TBinaryAsyncChannelFactory()
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: maxMessageSize_(0x7fffffff)
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, recvTimeout_(0)
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, sendTimeout_(0)
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, strictRead_(true) {}
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void setMaxMessageSize(uint32_t bytes) {
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maxMessageSize_ = bytes;
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}
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void setRecvTimeout(uint32_t milliseconds) {
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recvTimeout_ = milliseconds;
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}
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void setSendTimeout(uint32_t milliseconds) {
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sendTimeout_ = milliseconds;
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}
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void setStrictRead(bool strict) {
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strictRead_ = strict;
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}
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virtual boost::shared_ptr<TAsyncEventChannel> newChannel(
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const boost::shared_ptr<TAsyncTransport>& transport) {
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boost::shared_ptr<TBinaryAsyncChannel> channel(
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TBinaryAsyncChannel::newChannel(transport));
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transport->setSendTimeout(sendTimeout_);
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channel->setMaxMessageSize(maxMessageSize_);
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channel->setRecvTimeout(recvTimeout_);
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channel->setStrictRead(strictRead_);
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return channel;
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}
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private:
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uint32_t maxMessageSize_;
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uint32_t recvTimeout_;
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uint32_t sendTimeout_;
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bool strictRead_;
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};
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}}} // apache::thrift::async
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#endif // THRIFT_ASYNC_TBINARYASYNCCHANNEL_H_
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