typedef gsk_data_buffer *               (*ptgsk_getcache) ( 
                const unsigned char *   session_id,       
                unsigned int            session_id_length,
                int                     ssl_version);   

typedef gsk_data_buffer *               (*ptgsk_putcache) (  
                gsk_data_buffer *       ssl_session_data,  
                const unsigned char *   session_id,        
                unsigned int            session_id_length, 
                int                     ssl_version);      
                                               
typedef void                            (*ptgsk_deletecache) (           
                const unsigned char *   session_id,        
                unsigned int            session_id_length, 
                int                     ssl_version);  

typedef void                            (*ptgsk_freecache) (              
                gsk_data_buffer *       ssl_session_data); 
                                               
typedef struct _gsk_sidcache_callback {        
                ptgsk_getcache          Get;               
                ptgsk_putcache          Put;               
                ptgsk_deletecache       Delete;            
                ptgsk_freecache         FreeDataBuffer;    
} gsk_sidcache_callback;