session_storage.h

//                                                                             
//  Copyright (C) 2008-2012  Artyom Beilis (Tonkikh) <artyomtnk@yahoo.com>     
//                                                                             
//  See accompanying file COPYING.TXT file for licensing details.
//
#ifndef CPPCMS_SESSION_STORAGE_H
#define CPPCMS_SESSION_STORAGE_H

#include <cppcms/defs.h>
#include <booster/noncopyable.h>
#include <booster/shared_ptr.h>
#include <string>

namespace cppcms {
namespace json {
        class value;
}
namespace sessions {

        
        class session_storage : public booster::noncopyable
        {
        public:
        
                virtual void save(std::string const &sid,time_t timeout,std::string const &in) = 0;

                virtual bool load(std::string const &sid,time_t &timeout,std::string &out) = 0;
                
                
                virtual void remove(std::string const &sid) = 0;

                virtual bool is_blocking() = 0; 
        

                virtual ~session_storage()
                {
                }
        };

        class session_storage_factory {
        public:
                virtual booster::shared_ptr<session_storage> get() = 0;

                virtual bool requires_gc() = 0;
                virtual void gc_job() {}
                virtual ~session_storage_factory() {}
        };

        extern "C" {
                typedef session_storage_factory *(*cppcms_session_storage_generator_type)(cppcms::json::value const &options);
        }


} // sessions
} // cppcms


#endif