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Annotation of parser3/src/include/pa_stylesheet_manager.h, revision 1.6

1.1       parser      1: /** @file
                      2:        Parser: Stylesheet manager decl.
                      3: 
                      4:        Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.5       paf         5:        Author: Alexander Petrosyan <paf@design.ru> (http://paf.design.ru)
1.1       parser      6: 
1.6     ! paf         7:        $Id: pa_stylesheet_manager.h,v 1.5 2001/11/05 11:46:25 paf 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"
1.6     ! paf        20: #include "pa_cache_managers.h"
1.1       parser     21: 
                     22: // defines
                     23: 
                     24: // forwards
                     25: 
                     26: class Stylesheet_connection;
                     27: 
                     28: /** XSLT stylesheet driver manager
                     29:                maintains 
                     30:                stylesheet cache expiring unused stylesheets
                     31: */
1.6     ! paf        32: class Stylesheet_manager : public Pooled, public Cache_manager {
1.2       paf        33:        friend class Stylesheet_connection;
1.1       parser     34: public:
                     35: 
1.4       paf        36:        Stylesheet_manager(Pool& apool);
1.1       parser     37:        ~Stylesheet_manager();
                     38:        /** 
                     39:                check for disk update of "{file_spec}" or "{file_spec}.stamp",
                     40:                if not updated return cached version[if any] otherwise load/compile/return
                     41:        */
                     42:        Stylesheet_connection& get_connection(const String& file_spec);
                     43: 
                     44: private: // cache
                     45: 
                     46:        Stylesheet_connection *get_connection_from_cache(const String& file_spec);
                     47:        void put_connection_to_cache(const String& file_spec, Stylesheet_connection& connection);
                     48: private:
                     49:        time_t prev_expiration_pass_time;
                     50: 
                     51: private: // for stylesheet
                     52: 
                     53:        /// caches connection
                     54:        void close_connection(const String& file_spec, Stylesheet_connection& connection);
                     55: 
                     56: private:
                     57: 
                     58:        Hash connection_cache;
1.3       paf        59: 
1.6     ! paf        60: public: // Cache_manager
1.3       paf        61: 
                     62:        virtual Value& get_status(Pool& pool, const String *source);
1.6     ! paf        63:        virtual void maybe_expire_cache();
1.3       paf        64: 
1.1       parser     65: };
                     66: 
                     67: /// global
                     68: extern Stylesheet_manager *stylesheet_manager;
                     69: 
                     70: #endif