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/*
* $Id$
*
*
* SQUID Web Proxy Cache http://www.squid-cache.org/
* ----------------------------------------------------------
*
* Squid is the result of efforts by numerous individuals from
* the Internet community; see the CONTRIBUTORS file for full
* details. Many organizations have provided support for Squid's
* development; see the SPONSORS file for full details. Squid is
* Copyrighted (C) 2001 by the Regents of the University of
* California; see the COPYRIGHT file for full details. Squid
* incorporates software developed and/or copyrighted by other
* sources; see the CREDITS file for full details.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
* Copyright (c) 2003, Robert Collins <robertc@squid-cache.org>
*/
#ifndef SQUID_REMOVALPOLICY_H
#define SQUID_REMOVALPOLICY_H
#include "squid.h"
#include "cbdata.h"
class RemovalPolicyWalker;
class RemovalPurgeWalker;
class RemovalPolicySettings
{
public:
RemovalPolicySettings() : type(NULL), args(NULL) {};
char *type;
wordlist *args;
};
class RemovalPolicyNode
{
public:
RemovalPolicyNode() : data(NULL) {}
void *data;
};
class RemovalPolicy
{
public:
const char *_type;
void *_data;
void (*Free) (RemovalPolicy * policy);
void (*Add) (RemovalPolicy * policy, StoreEntry * entry, RemovalPolicyNode * node);
void (*Remove) (RemovalPolicy * policy, StoreEntry * entry, RemovalPolicyNode * node);
void (*Referenced) (RemovalPolicy * policy, const StoreEntry * entry, RemovalPolicyNode * node);
void (*Dereferenced) (RemovalPolicy * policy, const StoreEntry * entry, RemovalPolicyNode * node);
RemovalPolicyWalker *(*WalkInit) (RemovalPolicy * policy);
RemovalPurgeWalker *(*PurgeInit) (RemovalPolicy * policy, int max_scan);
void (*Stats) (RemovalPolicy * policy, StoreEntry * entry);
private:
CBDATA_CLASS2(RemovalPolicy);
};
class RemovalPolicyWalker
{
public:
RemovalPolicy *_policy;
void *_data;
const StoreEntry *(*Next) (RemovalPolicyWalker * walker);
void (*Done) (RemovalPolicyWalker * walker);
private:
CBDATA_CLASS2(RemovalPolicyWalker);
};
class RemovalPurgeWalker
{
public:
RemovalPolicy *_policy;
void *_data;
int scanned, max_scan, locked;
StoreEntry *(*Next) (RemovalPurgeWalker * walker);
void (*Done) (RemovalPurgeWalker * walker);
private:
CBDATA_CLASS2(RemovalPurgeWalker);
};
extern RemovalPolicy *createRemovalPolicy(RemovalPolicySettings * settings);
typedef RemovalPolicy *REMOVALPOLICYCREATE(wordlist * args);
#endif /* SQUID_REMOVALPOLICY_H */
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