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. 2005 ;)

/** @file
	Parser: cache managers center decl.

	Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com)
	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)

	$Date: 2005/08/05 13:02:58 $
*/

#ifndef PA_CACHE_MANAGERS_H
#define PA_CACHE_MANAGERS_H

static const char * const IDENT_CACHE_MANAGERS_H="$Date: 2005/08/05 13:02:58 $";

#include "pa_hash.h"
#include "pa_value.h"

// defines

/// can return status and can expire it contents
class Cache_manager: public PA_Object {
public:
	/// if filter_server_id not null, returns status only Cachable -s with matching cacheable_item_server_id()
	virtual Value* get_status() =0;
	virtual void maybe_expire_cache() {}
	virtual ~Cache_manager() {}
};

/// maintains name=>Cache_manager association, can expire its contents
class Cache_managers: public Hash<const String::Body, Cache_manager*> {
public:
	Cache_managers();
	virtual ~Cache_managers();

	/// maybe-expires all caches it contains, each cache manager desides it itself
	void maybe_expire();

};

/// global
extern Cache_managers* cache_managers;

#endif