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

1.1       parser      1: /** @file
                      2:        Parser: Stylesheet 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_stylesheet_manager.h,v 1.1 2001/10/22 16:44:42 parser Exp $
1.1       parser      8: 
                      9: 
                     10:        global sql driver manager, must be thread-safe
                     11: */
                     12: 
                     13: #ifndef PA_STYLESHEET_MANAGER_H
                     14: #define PA_STYLESHEET_MANAGER_H
                     15: 
                     16: #include "pa_config_includes.h"
                     17: #include "pa_pool.h"
                     18: #include "pa_hash.h"
                     19: #include "pa_table.h"
                     20: 
                     21: 
                     22: // defines
                     23: 
                     24: 
                     25: // forwards
                     26: 
                     27: class Stylesheet_connection;
                     28: 
                     29: /** XSLT stylesheet driver manager
                     30:                maintains 
                     31:                stylesheet cache expiring unused stylesheets
                     32: */
                     33: class Stylesheet_manager : public Pooled {
1.2     ! paf        34:        friend class Stylesheet_connection;
1.1       parser     35: public:
                     36: 
                     37:        Stylesheet_manager(Pool& pool);
                     38:        ~Stylesheet_manager();
                     39:        /** 
                     40:                check for disk update of "{file_spec}" or "{file_spec}.stamp",
                     41:                if not updated return cached version[if any] otherwise load/compile/return
                     42:        */
                     43:        Stylesheet_connection& get_connection(const String& file_spec);
                     44: 
                     45: private: // cache
                     46: 
                     47:        Stylesheet_connection *get_connection_from_cache(const String& file_spec);
                     48:        void put_connection_to_cache(const String& file_spec, Stylesheet_connection& connection);
                     49:        void maybe_expire_connection_cache();
                     50: private:
                     51:        time_t prev_expiration_pass_time;
                     52: 
                     53: private: // for stylesheet
                     54: 
                     55:        /// caches connection
                     56:        void close_connection(const String& file_spec, Stylesheet_connection& connection);
                     57: 
                     58: private:
                     59: 
                     60:        Hash connection_cache;
                     61: };
                     62: 
                     63: /// global
                     64: extern Stylesheet_manager *stylesheet_manager;
                     65: 
                     66: #endif