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/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2017 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* 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
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef RESOURCES_RESOURCEMANAGER_RESOURCEMANAGER_H
#define RESOURCES_RESOURCEMANAGER_RESOURCEMANAGER_H
#include "resources/memorycounter.h"
#include <map>
#include <set>
#include "localconsts.h"
class Resource;
struct SDL_Surface;
struct SDL_RWops;
/**
* A class for loading and managing resources.
*/
class ResourceManager final : public MemoryCounter
{
friend class Resource;
public:
typedef Resource *(*loader)(SDL_RWops *rw,
const std::string &name);
typedef Resource *(&generator)(const void *const data);
ResourceManager();
A_DELETE_COPY(ResourceManager)
/**
* Destructor. Cleans up remaining resources, warning about resources
* that were still referenced.
*/
~ResourceManager();
/**
* Creates a resource and adds it to the resource map.
*
* @param idPath The resource identifier path.
* @param fun A function for generating the resource.
* @param data Extra parameters for the generator.
* @return A valid resource or <code>NULL</code> if the resource could
* not be generated.
*/
Resource *get(const std::string &idPath,
generator fun,
const void *const data) A_WARN_UNUSED;
Resource *getFromCache(const std::string &idPath) A_WARN_UNUSED;
Resource *getFromCache(const std::string &filename,
const int variant) A_WARN_UNUSED;
bool addResource(const std::string &idPath,
Resource *const resource);
/**
* Releases a resource, placing it in the set of orphaned resources.
*/
void release(Resource *const res);
void clearDeleted(const bool full = true);
void decRefDelete(Resource *const res);
/**
* Move resource to deleted resources list.
*/
void moveToDeleted(Resource *const res);
void scheduleDelete(SDL_Surface *const surface);
void clearScheduled();
/**
* Deletes the class instance if it exists.
*/
static void deleteInstance();
int size() const noexcept2 A_WARN_UNUSED
{ return CAST_S32(mResources.size()); }
typedef std::map<std::string, Resource*> Resources;
typedef Resources::iterator ResourceIterator;
typedef Resources::const_iterator ResourceCIterator;
#ifdef DEBUG_DUMP_LEAKS
Resources* getResources() A_WARN_UNUSED
{ return &mResources; }
Resources* getOrphanedResources() A_WARN_UNUSED
{ return &mOrphanedResources; }
#endif // DEBUG_DUMP_LEAKS
bool cleanOrphans(const bool always = false);
void cleanProtected();
bool isInCache(const std::string &idPath) const A_WARN_UNUSED;
Resource *getTempResource(const std::string &idPath) A_WARN_UNUSED;
void clearCache();
int calcMemoryLocal() const override final;
int calcMemoryChilds(const int level) const override final;
std::string getCounterName() const override final
{ return "ResourceManager"; }
static void init();
#ifndef UNITTESTS
private:
#endif // UNITTESTS
/**
* Deletes the resource after logging a cleanup message.
*/
static void cleanUp(Resource *const resource);
static void logResource(const Resource *const res);
std::set<SDL_Surface*> deletedSurfaces;
Resources mResources;
Resources mOrphanedResources;
std::set<Resource*> mDeletedResources;
time_t mOldestOrphan;
bool mDestruction;
};
extern ResourceManager *resourceManager;
#endif // RESOURCES_RESOURCEMANAGER_RESOURCEMANAGER_H
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