DiskIOModule.h

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/*
 * Copyright (C) 1996-2021 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */
 
#ifndef SQUID_DISKIOMODULE_H
#define SQUID_DISKIOMODULE_H
 
#include <vector>
 
/* forward decls */
 
class CacheManager;
 
class DiskIOStrategy;
 
class DiskIOModule
{
 
public:
    static void SetupAllModules();
    static void ModuleAdd(DiskIOModule &);
    static void FreeAllModules();
 
    static DiskIOModule *Find(char const *type);
 
    static DiskIOModule *FindDefault();
    static std::vector<DiskIOModule*> const &Modules();
    typedef std::vector<DiskIOModule*>::iterator iterator;
    typedef std::vector<DiskIOModule*>::const_iterator const_iterator;
    DiskIOModule();
    virtual ~DiskIOModule() {}
 
    virtual void init() = 0;
    //virtual void registerWithCacheManager(void);
    virtual void gracefulShutdown() = 0;
    virtual DiskIOStrategy *createStrategy() = 0;
 
    virtual char const *type () const = 0;
    // Not implemented
    DiskIOModule(DiskIOModule const &);
    DiskIOModule &operator=(DiskIOModule const&);
 
protected:
    //bool initialised;
    static void RegisterAllModulesWithCacheManager(void);
 
private:
    static std::vector<DiskIOModule*> &GetModules();
    static std::vector<DiskIOModule*> *_Modules;
};
 
#endif /* SQUID_DISKIOMODULE_H */