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Annotation of parser3/src/include/pa_charset_manager.h, revision 1.2

1.1       parser      1: /** @file
                      2:        Parser: sql driver manager decl.
                      3: 
                      4:        Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
                      5:        Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
                      6: 
1.2     ! paf         7:        $Id: pa_charset_manager.h,v 1.1 2001/10/01 10:53:16 parser Exp $
1.1       parser      8: 
                      9: 
                     10:        global sql driver manager, must be thread-safe
                     11: */
                     12: 
                     13: #ifndef PA_CHARSET_MANAGER_H
                     14: #define PA_CHARSET_MANAGER_H
                     15: 
                     16: #include "pa_config_includes.h"
                     17: #include "pa_charset_connection.h"
                     18: #include "pa_hash.h"
                     19: 
                     20: // defines
                     21: 
                     22: 
                     23: // forwards
                     24: 
                     25: class Charset_connection;
                     26: 
                     27: /** Charset manager
                     28:                maintains 
                     29:                charset cache
                     30: */
                     31: class Charset_manager : public Pooled {
1.2     ! paf        32:        friend class Charset_connection;
1.1       parser     33: public:
                     34: 
                     35:        Charset_manager(Pool& pool) : Pooled(pool),
                     36:                cache(pool) {
                     37:        }
                     38: 
                     39:        /** 
                     40:                check for disk update of {file_spec}
                     41:                if not updated return cached version[if any] otherwise load/compile/return
                     42:        */
                     43:        Charset_connection& get_connection(
                     44:                const String& request_name, 
                     45:                const String& request_file_spec);
                     46: 
                     47: private: // cache
                     48: 
                     49:        Charset_connection *get_connection_from_cache(const String& file_spec);
                     50:        void put_connection_to_cache(const String& file_spec, Charset_connection& connection);
                     51: 
                     52: private:
                     53: 
                     54:        Hash cache;
                     55: };
                     56: 
                     57: /// global
                     58: extern Charset_manager *charset_manager;
                     59: 
                     60: #endif