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Add metafilesystem hook to add optimized implementations of compute recursive directory size

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This commit is contained in:
Henrik Rydgård 2021-09-11 17:18:39 +02:00
parent e842d395fa
commit 48310d15a9
11 changed files with 88 additions and 13 deletions
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30
Core/FileSystems/MetaFileSystem.cpp
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@ -500,12 +500,9 @@ bool MetaFileSystem::RemoveFile(const std::string &filename)
std::string of;
IFileSystem *system;
int error = MapFilePath(filename, of, &system);
if (error == 0)
{
if (error == 0) {
return system->RemoveFile(of);
}
else
{
} else {
return false;
}
}
@ -648,17 +645,36 @@ void MetaFileSystem::DoState(PointerWrap &p)
}
}
u64 MetaFileSystem::getDirSize(const std::string &dirPath) {
int64_t MetaFileSystem::RecursiveSize(const std::string &dirPath) {
u64 result = 0;
auto allFiles = GetDirListing(dirPath);
for (auto file : allFiles) {
if (file.name == "." || file.name == "..")
continue;
if (file.type == FILETYPE_DIRECTORY) {
result += getDirSize(dirPath + file.name);
result += RecursiveSize(dirPath + file.name);
} else {
result += file.size;
}
}
return result;
}
int64_t MetaFileSystem::ComputeRecursiveDirectorySize(const std::string &filename) {
std::lock_guard<std::recursive_mutex> guard(lock);
std::string of;
IFileSystem *system;
int error = MapFilePath(filename, of, &system);
if (error == 0) {
int64_t size;
if (system->ComputeRecursiveDirSizeIfFast(of, &size)) {
// Some file systems can optimize this.
return size;
} else {
// Those that can't, we just run a generic implementation.
return RecursiveSize(filename);
}
} else {
return false;
}
}