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Annotation of parser3/src/include/pa_stylesheet_manager.h, revision 1.1

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: 
        !             7:        $Id: pa_xslt_stylesheet_manager.h,v 1.4 2001/10/01 10:53:16 parser Exp $
        !             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 {
        !            34:        friend Stylesheet_connection;
        !            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