text: //
  // Copyright (c) 2008-2016 the Urho3D project.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  //
  
  #pragma once
  
  #include "../IO/Deserializer.h"
  #include "../IO/Serializer.h"
  
  namespace Urho3D
  {
  
  /// Memory area that can be read and written to as a stream.
  class URHO3D_API MemoryBuffer : public Deserializer, public Serializer
  {
  public:
      /// Construct with a pointer and size.
      MemoryBuffer(void* data, unsigned size);
      /// Construct as read-only with a pointer and size.
      MemoryBuffer(const void* data, unsigned size);
      /// Construct from a vector, which must not go out of scope before MemoryBuffer.
      MemoryBuffer(PODVector<unsigned char>& data);
      /// Construct from a read-only vector, which must not go out of scope before MemoryBuffer.
      MemoryBuffer(const PODVector<unsigned char>& data);
  
      /// Read bytes from the memory area. Return number of bytes actually read.
      virtual unsigned Read(void* dest, unsigned size);
      /// Set position from the beginning of the memory area.
      virtual unsigned Seek(unsigned position);
      /// Write bytes to the memory area.
      virtual unsigned Write(const void* data, unsigned size);
  
      /// Return memory area.
      unsigned char* GetData() { return buffer_; }
  
      /// Return whether buffer is read-only.
      bool IsReadOnly() { return readOnly_; }
  
  private:
      /// Pointer to the memory area.
      unsigned char* buffer_;
      /// Read-only flag.
      bool readOnly_;
  };
  
  }
  