TMapRec

class TMapRec

    public:

                  TMapRec(const char* name, const TObject* obj, Int_t size, void* buf)
                  TMapRec(const TMapRec&)
                  ~TMapRec()
            void* GetBuffer(Long_t offset = 0) const
            Int_t GetBufSize() const
      const char* GetClassName(Long_t offset = 0) const
      const char* GetName(Long_t offset = 0) const
         TMapRec* GetNext(Long_t offset = 0) const
         TObject* GetObject() const
         TMapRec& operator=(const TMapRec&)

Data Members

    private:

         char* fName       object name
         char* fClassName  class name
      TObject* fObject     pointer to original object
         void* fBuffer     buffer containing object of class name
         Int_t fBufSize    buffer size
      TMapRec* fNext       next MapRec in list

Class Description

                                                                      
 TMapFile                                                             
                                                                      
 This class implements a shared memory region mapped to a file.       
 Objects can be placed into this shared memory area using the Add()   
 member function. Whenever the mapped object(s) change(s) call        
 Update() to put a fresh copy in the shared memory. This extra        
 step is necessary since it is not possible to share objects with     
 virtual pointers between processes (the vtbl ptr points to the       
 originators unique address space and can not be used by the          
 consumer process(es)). Consumer processes can map the memory region  
 from this file and access the objects stored in it via the Get()     
 method (which returns a copy of the object stored in the shared      
 memory with correct vtbl ptr set). Only objects of classes with a    
 Streamer() member function defined can be shared.                    
                                                                      

Inline Functions

               void ~TMapRec()
            TMapRec TMapRec(const char* name, const TObject* obj, Int_t size, void* buf)
        const char* GetName(Long_t offset = 0) const
        const char* GetClassName(Long_t offset = 0) const
              void* GetBuffer(Long_t offset = 0) const
              Int_t GetBufSize() const
           TObject* GetObject() const
           TMapRec* GetNext(Long_t offset = 0) const
            TMapRec TMapRec(const TMapRec&)
           TMapRec& operator=(const TMapRec&)