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/*
* 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.
*/
#ifndef _THRIFT_TRANSPORT_TNONBLOCKINGSERVERTRANSPORT_H_
#define _THRIFT_TRANSPORT_TNONBLOCKINGSERVERTRANSPORT_H_ 1
#include <thrift/transport/TSocket.h>
#include <thrift/transport/TTransportException.h>
#include <thrift/stdcxx.h>
namespace apache {
namespace thrift {
namespace transport {
/**
* Server transport framework. A server needs to have some facility for
* creating base transports to read/write from. The server is expected
* to keep track of TTransport children that it creates for purposes of
* controlling their lifetime.
*/
class TNonblockingServerTransport {
public:
virtual ~TNonblockingServerTransport() {}
/**
* Starts the server transport listening for new connections. Prior to this
* call most transports will not return anything when accept is called.
*
* @throws TTransportException if we were unable to listen
*/
virtual void listen() {}
/**
* Gets a new dynamically allocated transport object and passes it to the
* caller. Note that it is the explicit duty of the caller to free the
* allocated object. The returned TTransport object must always be in the
* opened state. NULL should never be returned, instead an Exception should
* always be thrown.
*
* @return A new TTransport object
* @throws TTransportException if there is an error
*/
stdcxx::shared_ptr<TSocket> accept() {
stdcxx::shared_ptr<TSocket> result = acceptImpl();
if (!result) {
throw TTransportException("accept() may not return NULL");
}
return result;
}
/**
* Utility method
*
* @return server socket file descriptor
* @throw TTransportException If an error occurs
*/
virtual THRIFT_SOCKET getSocketFD() = 0;
virtual int getPort() = 0;
virtual int getListenPort() = 0;
/**
* Closes this transport such that future calls to accept will do nothing.
*/
virtual void close() = 0;
protected:
TNonblockingServerTransport() {}
/**
* Subclasses should implement this function for accept.
*
* @return A newly allocated TTransport object
* @throw TTransportException If an error occurs
*/
virtual stdcxx::shared_ptr<TSocket> acceptImpl() = 0;
};
}
}
} // apache::thrift::transport
#endif // #ifndef _THRIFT_TRANSPORT_TNONBLOCKINGSERVERTRANSPORT_H_
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