text: /*
   * 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_PROTOCOL_TBINARYPROTOCOL_H_
  #define THRIFT_PROTOCOL_TBINARYPROTOCOL_H_ 1
  
  #include <thrift/lib/cpp/protocol/TProtocol.h>
  #include <thrift/lib/cpp/protocol/TVirtualProtocol.h>
  
  #include <memory>
  
  namespace apache { namespace thrift { namespace protocol {
  
  /**
   * The default binary protocol for thrift. Writes all data in a very basic
   * binary format, essentially just spitting out the raw bytes.
   *
   */
  template <class Transport_>
  class TBinaryProtocolT
    : public TVirtualProtocol< TBinaryProtocolT<Transport_> > {
  
   public:
    static const int32_t VERSION_MASK = 0xffff0000;
    static const int32_t VERSION_1 = 0x80010000;
    // VERSION_2 (0x80020000)  is taken by TDenseProtocol.
  
    explicit TBinaryProtocolT(const std::shared_ptr<Transport_>& trans) :
      TVirtualProtocol< TBinaryProtocolT<Transport_> >(trans),
      trans_(trans.get()),
      string_limit_(0),
      container_limit_(0),
      strict_read_(false),
      strict_write_(true),
      string_buf_(nullptr),
      string_buf_size_(0) {}
  
    TBinaryProtocolT(const std::shared_ptr<Transport_>& trans,
                     int32_t string_limit,
                     int32_t container_limit,
                     bool strict_read,
                     bool strict_write) :
      TVirtualProtocol< TBinaryProtocolT<Transport_> >(trans),
      trans_(trans.get()),
      string_limit_(string_limit),
      container_limit_(container_limit),
      strict_read_(strict_read),
      strict_write_(strict_write),
      string_buf_(nullptr),
      string_buf_size_(0) {}
  
    /**
     * Construct a TBinaryProtocolT using a raw pointer to the transport.
     *
     * The caller is responsible for ensuring that the transport remains valid
     * for the lifetime of the protocol.
     */
    explicit TBinaryProtocolT(Transport_* trans) :
      TVirtualProtocol< TBinaryProtocolT<Transport_> >(trans),
      trans_(trans),
      string_limit_(0),
      container_limit_(0),
      strict_read_(false),
      strict_write_(true),
      string_buf_(nullptr),
      string_buf_size_(0) {}
  
    ~TBinaryProtocolT() override {
      if (string_buf_ != nullptr) {
        std::free(string_buf_);
        string_buf_size_ = 0;
      }
    }
  
    void setStringSizeLimit(int32_t string_limit) {
      string_limit_ = string_limit;
    }
  
    void setContainerSizeLimit(int32_t container_limit) {
      container_limit_ = container_limit;
    }
  
    int32_t getStringSizeLimit() {
      return string_limit_;
    }
  
    int32_t getContainerSizeLimit() {
      return container_limit_;
    }
  
    void setStrict(bool strict_read, bool strict_write) {
      strict_read_ = strict_read;
      strict_write_ = strict_write;
    }
  
    /**
     * Writing functions.
     */
  
    /*ol*/ uint32_t writeMessageBegin(const std::string& name,
                                      const TMessageType messageType,
                                      const int32_t seqid);
  
    /*ol*/ uint32_t writeMessageEnd();
  
  
    inline uint32_t writeStructBegin(const char* name);
  
    inline uint32_t writeStructEnd();
  
    inline uint32_t writeFieldBegin(const char* name,
                                    const TType fieldType,
                                    const int16_t fieldId);
  
    inline uint32_t writeFieldEnd();
  
    inline uint32_t writeFieldStop();
  
    inline uint32_t writeMapBegin(const TType keyType,
                                  const TType valType,
                                  const uint32_t size);
  
    inline uint32_t writeMapEnd();
  
    inline uint32_t writeListBegin(const TType elemType, const uint32_t size);
  
    inline uint32_t writeListEnd();
  
    inline uint32_t writeSetBegin(const TType elemType, const uint32_t size);
  
    inline uint32_t writeSetEnd();
  
    inline uint32_t writeBool(const bool value);
  
    inline uint32_t writeByte(const int8_t byte);
  
    inline uint32_t writeI16(const int16_t i16);
  
    inline uint32_t writeI32(const int32_t i32);
  
    inline uint32_t writeI64(const int64_t i64);
  
    inline uint32_t writeDouble(const double dub);
  
    inline uint32_t writeFloat(const float flt);
  
    template <typename StrType>
    inline uint32_t writeString(const StrType& str);
  
    inline uint32_t writeBinary(const std::string& str);
  
    /**
     * Reading functions
     */
  
  
    /*ol*/ uint32_t readMessageBegin(std::string& name,
                                     TMessageType& messageType,
                                     int32_t& seqid);
  
    /*ol*/ uint32_t readMessageEnd();
  
    inline uint32_t readStructBegin(std::string& name);
  
    inline uint32_t readStructEnd();
  
    inline uint32_t readFieldBegin(std::string& name,
                                   TType& fieldType,
                                   int16_t& fieldId);
  
    inline uint32_t readFieldEnd();
  
    inline uint32_t readMapBegin(TType& keyType,
                                 TType& valType,
                                 uint32_t& size,
                                 bool& sizeUnknown);
  
    inline uint32_t readMapEnd();
  
    inline uint32_t readListBegin(TType& elemType, uint32_t& size,
                                  bool& SizeUnknown);
  
    inline uint32_t readListEnd();
  
    inline uint32_t readSetBegin(TType& elemType, uint32_t& size,
                                 bool& sizeUnknown);
  
    inline uint32_t readSetEnd();
  
    inline uint32_t readBool(bool& value);
    // Provide the default readBool() implementation for std::vector<bool>
    using TVirtualProtocol< TBinaryProtocolT<Transport_> >::readBool;
  
    inline uint32_t readByte(int8_t& byte);
  
    inline uint32_t readI16(int16_t& i16);
  
    inline uint32_t readI32(int32_t& i32);
  
    inline uint32_t readI64(int64_t& i64);
  
    inline uint32_t readDouble(double& dub);
  
    inline uint32_t readFloat(float& flt);
  
    template<typename StrType>
    inline uint32_t readString(StrType& str);
  
    inline uint32_t readBinary(std::string& str);
  
   protected:
    template<typename StrType>
    uint32_t readStringBody(StrType& str, int32_t sz);
  
    Transport_* trans_;
  
    int32_t string_limit_;
    int32_t container_limit_;
  
    // Enforce presence of version identifier
    bool strict_read_;
    bool strict_write_;
  
    // Buffer for reading strings, save for the lifetime of the protocol to
    // avoid memory churn allocating memory on every string read
    uint8_t* string_buf_;
    int32_t string_buf_size_;
  
  };
  
  typedef TBinaryProtocolT<transport::TTransport> TBinaryProtocol;
  
  
  class TBinaryProtocolFactoryBase : public TProtocolFactory {};
  
  /**
   * Constructs binary protocol handlers
   */
  template <class Transport_>
  class TBinaryProtocolFactoryT : public TBinaryProtocolFactoryBase {
   public:
    TBinaryProtocolFactoryT() :
      string_limit_(0),
      container_limit_(0),
      strict_read_(false),
      strict_write_(true) {}
  
    TBinaryProtocolFactoryT(int32_t string_limit, int32_t container_limit,
                            bool strict_read, bool strict_write) :
      string_limit_(string_limit),
      container_limit_(container_limit),
      strict_read_(strict_read),
      strict_write_(strict_write) {}
  
    ~TBinaryProtocolFactoryT() override {}
  
    void setStringSizeLimit(int32_t string_limit) {
      string_limit_ = string_limit;
    }
  
    void setContainerSizeLimit(int32_t container_limit) {
      container_limit_ = container_limit;
    }
  
    void setStrict(bool strict_read, bool strict_write) {
      strict_read_ = strict_read;
      strict_write_ = strict_write;
    }
  
    std::shared_ptr<TProtocol> getProtocol(
        std::shared_ptr<transport::TTransport> trans) override {
      std::shared_ptr<Transport_> specific_trans =
        std::dynamic_pointer_cast<Transport_>(trans);
      TProtocol* prot;
      if (specific_trans) {
        prot = new TBinaryProtocolT<Transport_>(specific_trans, string_limit_,
                                                container_limit_, strict_read_,
                                                strict_write_);
      } else {
        prot = new TBinaryProtocol(trans, string_limit_, container_limit_,
                                   strict_read_, strict_write_);
      }
  
      return std::shared_ptr<TProtocol>(prot);
    }
  
   private:
    int32_t string_limit_;
    int32_t container_limit_;
    bool strict_read_;
    bool strict_write_;
  
  };
  
  typedef TBinaryProtocolFactoryT<transport::TTransport> TBinaryProtocolFactory;
  
  }}} // apache::thrift::protocol
  
  #include "TBinaryProtocol.tcc"
  
  #endif // #ifndef THRIFT_PROTOCOL_TBINARYPROTOCOL_H_
  