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filesystem: Cache RegisteredCacheUnion instead of constructing on demand

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Prevents unnecessary re-reads of the metadata and unnecessary temporary objects.
This commit is contained in:
Zach Hilman 2018-11-01 20:24:32 -04:00
parent 97d425c304
commit 8f183a47dd
2 changed files with 11 additions and 4 deletions
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13
src/core/hle/service/filesystem/filesystem.cpp
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@ -319,9 +319,16 @@ ResultVal<FileSys::VirtualDir> OpenSDMC() {
return sdmc_factory->Open();
}
std::unique_ptr<FileSys::RegisteredCacheUnion> GetUnionContents() {
return std::make_unique<FileSys::RegisteredCacheUnion>(std::vector<FileSys::RegisteredCache*>{
GetSystemNANDContents(), GetUserNANDContents(), GetSDMCContents()});
std::shared_ptr<FileSys::RegisteredCacheUnion> registered_cache_union;
std::shared_ptr<FileSys::RegisteredCacheUnion> GetUnionContents() {
if (registered_cache_union == nullptr) {
registered_cache_union =
std::make_shared<FileSys::RegisteredCacheUnion>(std::vector<FileSys::RegisteredCache*>{
GetSystemNANDContents(), GetUserNANDContents(), GetSDMCContents()});
}
return registered_cache_union;
}
FileSys::RegisteredCache* GetSystemNANDContents() {

2
src/core/hle/service/filesystem/filesystem.h
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@ -47,7 +47,7 @@ ResultVal<FileSys::VirtualDir> OpenSaveData(FileSys::SaveDataSpaceId space,
FileSys::SaveDataDescriptor save_struct);
ResultVal<FileSys::VirtualDir> OpenSDMC();
std::unique_ptr<FileSys::RegisteredCacheUnion> GetUnionContents();
std::shared_ptr<FileSys::RegisteredCacheUnion> GetUnionContents();
FileSys::RegisteredCache* GetSystemNANDContents();
FileSys::RegisteredCache* GetUserNANDContents();