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51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
#ifndef OPENMW_COMPONENTS_NIFCACHE_H
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#define OPENMW_COMPONENTS_NIFCACHE_H
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#include <components/nif/niffile.hpp>
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#include <boost/shared_ptr.hpp>
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#include <map>
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namespace Nif
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{
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typedef boost::shared_ptr<Nif::NIFFile> NIFFilePtr;
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/// @brief A basic resource manager for NIF files
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class Cache
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{
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public:
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Cache();
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/// Queue this file for background loading. A worker thread will start loading the file.
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/// To get the loaded NIFFilePtr, use the load method, which will wait until the worker thread is finished
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/// and then return the loaded file.
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//void loadInBackground (const std::string& file);
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/// Read and parse the given file. May retrieve from cache if this file has been used previously.
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/// @note If the file is currently loading in the background, this function will block until
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/// the background loading finishes, then return the background loaded file.
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/// @note Returns a SharedPtr to the file and the file will stay loaded as long as the user holds on to this pointer.
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/// When all external SharedPtrs to a file are released, the cache may decide to unload the file.
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NIFFilePtr load (const std::string& filename);
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/// Return instance of this class.
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static Cache& getInstance();
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static Cache* getInstancePtr();
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private:
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static Cache* sThis;
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Cache(const Cache&);
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Cache& operator =(const Cache&);
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typedef std::map<std::string, NIFFilePtr> LoadedMap;
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LoadedMap mLoadedMap;
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};
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}
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#endif
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