Method compute

3ds/source/backupsize.cpp:129–170

}

void BackupSizeCache::compute(u64 cacheKey, std::u16string rootPath)
{
    const std::string root = StringUtils::UTF16toUTF8(rootPath);
    u64 total              = 0;
    std::vector<std::pair<std::u16string, u64>> perBackup;

    DIR* dir = opendir(root.c_str());
    if (dir) {
        struct dirent* ent;
        while (!mAbort.load() && (ent = readdir(dir)) != nullptr) {
            if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) {
                continue;
            }
            std::string full = root + "/" + ent->d_name;
            struct stat st;
            if (stat(full.c_str(), &st) != 0) {
                continue;
            }
            if (S_ISDIR(st.st_mode)) {
                u64 sz = walk(full);
                total += sz;
                perBackup.emplace_back(rootPath + u"/" + StringUtils::UTF8toUTF16(ent->d_name), sz);
            }
            else {
                total += (u64)st.st_size;
            }
        }
        closedir(dir);
    }

    std::lock_guard<std::mutex> lock(mMutex);
    mPending.erase(cacheKey);
    // Discard a partial result produced while shutting down.
    if (mAbort.load()) {
        return;
    }
    mTotals[cacheKey] = total;
    for (auto& pb : perBackup) {
        mBackupSizes[pb.first] = pb.second;
    }
    mGeneration.fetch_add(1);
}