Github user ben-craig commented on a diff in the pull request: https://github.com/apache/thrift/pull/357#discussion_r25197742 --- Diff: lib/cpp/src/thrift/transport/THeaderTransport.h --- @@ -0,0 +1,308 @@ +/* + * 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_THEADERTRANSPORT_H_ +#define THRIFT_TRANSPORT_THEADERTRANSPORT_H_ 1 + +#include <tr1/functional> + +#include <thrift/protocol/TBinaryProtocol.h> +#include <thrift/protocol/TProtocolTypes.h> +#include <thrift/transport/TBufferTransports.h> +#include <thrift/transport/TTransport.h> +#include <thrift/transport/TVirtualTransport.h> + +#include <bitset> +#include "boost/scoped_array.hpp" +#include <pwd.h> +#include <unistd.h> + +// Don't include the unknown client. +#define CLIENT_TYPES_LEN 4 + +enum CLIENT_TYPE { + THRIFT_HEADER_CLIENT_TYPE = 0, + THRIFT_FRAMED_DEPRECATED = 1, + THRIFT_UNFRAMED_DEPRECATED = 2, + THRIFT_UNKNOWN_CLIENT_TYPE = 4, +}; + +namespace apache { namespace thrift { namespace transport { + +using apache::thrift::protocol::T_COMPACT_PROTOCOL; + +/** + * Header transport. All writes go into an in-memory buffer until flush is + * called, at which point the transport writes the length of the entire + * binary chunk followed by the data payload. This allows the receiver on the + * other end to always do fixed-length reads. + * + * Subclass TFramedTransport because most of the read/write methods are similar --- End diff -- Within the Thrift code base, nothing passes around pointers to TBufferedTransport objects. Some of the async classes pass around pointers to TBufferBase objects though. If you are trying to make THeaderTransport fit in the async classes, then inheriting from TBufferBase should be enough. If you don't want / don't care about the async classes, then I don't see the benefit in inheriting from the TBuffer classes.
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