TAO: Base_Compressor.h Source File

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00001 // -*- C++ -*-
00002 
00003 // ===================================================================
00004 /**
00005  *  @file   Base_Compressor.h
00006  *
00007  *  $Id: Base_Compressor.h 82521 2008-08-06 07:46:16Z johnnyw $
00008  *
00009  *  @author Johnny Willemsen  <jwillemsen@remedy.nl>
00010  */
00011 // ===================================================================
00012 
00013 #ifndef TAO_BASE_COMPRESSOR_H
00014 #define TAO_BASE_COMPRESSOR_H
00015 
00016 #include /**/ "ace/pre.h"
00017 
00018 #include "tao/Compression/compression_export.h"
00019 
00020 #if !defined (ACE_LACKS_PRAGMA_ONCE)
00021 # pragma once
00022 #endif /* ACE_LACKS_PRAGMA_ONCE */
00023 
00024 #include "tao/Compression/Compression.h"
00025 #include "tao/LocalObject.h"
00026 
00027 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
00028 
00029 namespace TAO
00030 {
00031   /**
00032    * This class is a helper to implement real compressors
00033    */
00034   class TAO_Compression_Export BaseCompressor :
00035     public virtual ::Compression::Compressor,
00036     public virtual ::CORBA::LocalObject
00037   {
00038   public:
00039     BaseCompressor (::Compression::CompressionLevel compression_level,
00040                     ::Compression::CompressorFactory_ptr compressor_factory);
00041 
00042     virtual void compress (const ::Compression::Buffer &source,
00043                            ::Compression::Buffer &target) = 0;
00044 
00045     virtual void decompress (const ::Compression::Buffer &source,
00046                              ::Compression::Buffer &target) = 0;
00047 
00048     virtual ::Compression::CompressorFactory_ptr compressor_factory (void);
00049 
00050     virtual ::Compression::CompressionLevel compression_level (void);
00051 
00052     virtual ::CORBA::ULongLong compressed_bytes (void);
00053 
00054     virtual ::CORBA::ULongLong uncompressed_bytes (void);
00055 
00056     virtual ::Compression::CompressionRatio compression_ratio (void);
00057 
00058   protected:
00059     void update_stats (::CORBA::ULongLong compressed_bytes,
00060                        ::CORBA::ULongLong uncompressed_bytes);
00061 
00062     TAO_SYNCH_MUTEX mutex_;
00063     ::Compression::CompressionLevel compression_level_;
00064     ::Compression::CompressorFactory_var compressor_factory_;
00065     ::CORBA::ULongLong compressed_bytes_;
00066     ::CORBA::ULongLong uncompressed_bytes_;
00067   };
00068 }
00069 
00070 TAO_END_VERSIONED_NAMESPACE_DECL
00071 
00072 #include /**/ "ace/post.h"
00073 
00074 #endif /* TAO_BASE_COMPRESSOR_H */
00075