Return to pa_db_manager.h CVS log

Up to [parser3project] / parser3 / src / include

Annotation of parser3/src/include/pa_db_manager.h, revision 1.5

1.1       parser      1: /** @file
                      2:        Parser: sql driver manager decl.
                      3:        global sql driver manager, must be thread-safe
                      4: 
                      5:        Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
                      6:        Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
                      7: 
1.5     ! paf         8:        $Id: pa_db_manager.h,v 1.4 2001/10/26 13:48:18 paf Exp $
1.1       parser      9: */
                     10: 
1.3       paf        11: #ifndef PA_DB_MANAGER_H
                     12: #define PA_DB_MANAGER_H
1.1       parser     13: 
                     14: #include "pa_config_includes.h"
                     15: #include "pa_pool.h"
                     16: #include "pa_hash.h"
1.4       paf        17: #include "pa_db_connection.h"
1.5     ! paf        18: 
1.1       parser     19: // defines
                     20: 
                     21: // forwards
                     22: 
                     23: /// sql driver manager
                     24: class DB_Manager : public Pooled {
                     25:        friend DB_Connection;
                     26: public:
                     27: 
                     28:        DB_Manager(Pool& pool);
                     29:        ~DB_Manager();
                     30: 
                     31:        /** 
1.3       paf        32:                connect to specified db_home, 
1.1       parser     33:                using driver dynamic library found in table, if not loaded yet
                     34:                checks driver version
                     35:        */
1.4       paf        36:        DB_Connection_ptr get_connection_ptr(const String& db_home, const String *source);
1.1       parser     37: 
1.3       paf        38: private: // connection cache, never expires
1.1       parser     39: 
1.3       paf        40:        DB_Connection *get_connection_from_cache(const String& db_home);
                     41:        void put_connection_to_cache(const String& db_home, DB_Connection& connection);
1.1       parser     42:        void maybe_expire_connection_cache();
                     43: private:
                     44:        time_t prev_expiration_pass_time;
                     45: 
                     46: private: // for DB_Connection
                     47: 
                     48: private:
                     49: 
                     50:        Hash connection_cache;
                     51: 
                     52: };
                     53: 
                     54: /// global
                     55: extern DB_Manager *DB_manager;
                     56: 
                     57: #endif