value.hpp

OSB-PIK-OpenVXI-3.0.0源代码 “中国XML论坛 - 专业的XML技术讨论区--XML在语音技术中的应用”

 /****************License************************************************
  *
  * Copyright 2000-2003.  ScanSoft, Inc.    
  *
  * Use of this software is subject to notices and obligations set forth 
  * in the SpeechWorks Public License - Software Version 1.2 which is 
  * included with this software. 
  *
  * ScanSoft is a registered trademark of ScanSoft, Inc., and OpenSpeech, 
  * SpeechWorks and the SpeechWorks logo are registered trademarks or 
  * trademarks of SpeechWorks International, Inc. in the United States 
  * and other countries.
  *
  ***********************************************************************/
 

 #ifndef _VALUE_HPP
 #define _VALUE_HPP
 
 // Forward declarations, required because we mask out the struct definitions
 // in VXIvalue.h with the define below
 class VXIValue;
 class VXIBoolean;
 class VXIInteger;
 class VXIFloat;
 class VXIPtr;
 class VXIString;
 class VXIContent;
 class VXIMap;
 class VXIVector;
 class VXIMapIterator;
 class VXIContentData;
 
 #define VXIVALUE_REAL_STRUCTS
 #include "VXIvalue.h"
 
 #ifndef WIN32
 extern "C" struct VXItrdMutex;
 #endif
 
 
 /**
  * VXIValue base class
  */
 class VXIValue {
  public:
   // Constructor and destructor
   VXIValue (VXIvalueType t) : type(t) { }
   virtual ~VXIValue( ) { }
 
   // Get the value type
   VXIvalueType GetType( ) const { return type; }
 
  private:
   VXIvalueType type;
 };
 
 /**
  * Basic VXIValue based data types
  */
 class VXIBoolean : public VXIValue {
  public:
   // Constructor and destructor
   VXIBoolean (VXIbool v) : VXIValue (VALUE_BOOLEAN), value(v) { }
   virtual ~VXIBoolean( ) { }
 
   // Get the value
   VXIbool GetValue( ) const { return value; }
 
  private:
   VXIbool  value;
 };
 
 class VXIInteger : public VXIValue {
  public:
   // Constructor and destructor
   VXIInteger (VXIint32 v) : VXIValue (VALUE_INTEGER), value(v) { }
   virtual ~VXIInteger( ) { }
 
   // Get the value
   VXIint32 GetValue( ) const { return value; }
 
  private:
   VXIint32  value;
 };
 
 class VXIFloat : public VXIValue {
  public:
   // Constructor and destructor
   VXIFloat (VXIflt32 v) : VXIValue (VALUE_FLOAT), value(v) { }
   virtual ~VXIFloat( ) { }
 
   // Get the value
   VXIflt32 GetValue( ) const { return value; }
 
  private:
   VXIflt32  value;
 };
 
 class VXIPtr : public VXIValue {
  public:
   // Constructor and destructor
   VXIPtr (VXIptr v) : VXIValue (VALUE_PTR), value(v) { }
   virtual ~VXIPtr( ) { }
 
   // Get the value
   VXIptr GetValue( ) const { return value; }
 
  private:
   VXIptr        value;
 };
 
 // Helper class for VXIContent, non-public
 class VXIContentData {
  public:
   // Constructors and destructor
   VXIContentData (const VXIchar  *ct,
 		  VXIbyte        *c,
 		  VXIulong        csb,
 		  void          (*Destroy)(VXIbyte **content, void *userData),
 		  void           *ud);
   virtual ~VXIContentData( );
 
   // Add and remove references
   static void AddRef  (VXIContentData *data);
   static void Release (VXIContentData **data);
 
   // Get the data
   const VXIchar  *GetContentType( ) const { return contentType; }
   const VXIbyte  *GetContent( ) const { return content; }
   const VXIulong  GetContentSizeBytes( ) const { return contentSizeBytes; }
 
  private:
   // Disabled copy constructor and assignment operator
   VXIContentData (const VXIContent &c);
   VXIContent &operator= (const VXIContent &c);
 
  private:
 #ifdef WIN32
   long         refCount;
 #else
   VXItrdMutex *mutex;
   VXIulong     refCount;
 #endif
 
   VXIchar     *contentType;
   VXIbyte     *content;
   VXIulong     contentSizeBytes;
   void       (*Destroy)(VXIbyte **content, void *userData);
   void        *userData;
 };
 
 class VXIContent : public VXIValue {
  public:
   // Constructors and destructor
   VXIContent (const VXIchar  *contentType,
 	      VXIbyte        *content,
 	      VXIulong        contentSizeBytes,
 	      void          (*Destroy)(VXIbyte **content, void *userData),
 	      void           *userData) : 
     VXIValue(VALUE_CONTENT), details(NULL) {
     details = new VXIContentData (contentType, content, contentSizeBytes,
 				  Destroy, userData); }
   VXIContent (const VXIContent &c) : 
     VXIValue(VALUE_CONTENT), details(c.details) { 
     VXIContentData::AddRef (details); }
   virtual ~VXIContent( ) { VXIContentData::Release (&details); }
 
   // Get the data
   const VXIchar  *GetContentType( ) const {
     return (details ? details->GetContentType( ) : NULL); }
   const VXIbyte  *GetContent( ) const {
     return (details ? details->GetContent( ) : NULL); }
   const VXIulong  GetContentSizeBytes( ) const {
     return (details ? details->GetContentSizeBytes( ) : 0); }
 
   // Assignment operator
   VXIContent &operator= (const VXIContent &c) {
     if ( &c != this ) {
       VXIContentData::Release (&details);
       details = c.details;
       VXIContentData::AddRef (details);
     }
     return *this;
   }
 
  private:
   VXIContentData  *details;
 };
 
 #endif  /* include guard */