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https://github.com/Atmosphere-NX/Atmosphere.git
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fs.mitm: Save memory+time in sibling reconstruction via reverse iteration
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parent
4c920dfe92
commit
83c9747e5f
2 changed files with 14 additions and 24 deletions
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@ -269,18 +269,14 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
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this->file_partition_size += cur_file->size;
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cur_file->entry_offset = entry_offset;
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entry_offset += sizeof(RomFSFileEntry) + ((cur_file->path_len - cur_file->cur_path_ofs + 3) & ~3);
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/* Assign deferred parent/sibling ownership. */
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if (cur_file->parent->file == NULL) {
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cur_file->parent->file = cur_file;
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cur_file->parent->tail = cur_file;
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} else {
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((RomFSBuildFileContext *)cur_file->parent->tail)->sibling = cur_file;
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cur_file->parent->tail = cur_file;
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}
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prev_file = cur_file;
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}
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/* Assign deferred parent/sibling ownership. */
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for (auto it = this->files.rbegin(); it != this->files.rend(); it++) {
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cur_file = it->second;
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cur_file->sibling = cur_file->parent->file;
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cur_file->parent->file = cur_file;
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}
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/* Determine directory offsets. */
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entry_offset = 0;
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@ -288,17 +284,12 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
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cur_dir = it.second;
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cur_dir->entry_offset = entry_offset;
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entry_offset += sizeof(RomFSDirectoryEntry) + ((cur_dir->path_len - cur_dir->cur_path_ofs + 3) & ~3);
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/* Assign deferred parent/sibling ownership. */
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if (cur_dir != this->root) {
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if (cur_dir->parent->child == NULL) {
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cur_dir->parent->child = cur_dir;
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cur_dir->parent->tail = cur_dir;
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} else {
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((RomFSBuildDirectoryContext *)cur_dir->parent->tail)->sibling = cur_dir;
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cur_dir->parent->tail = cur_dir;
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}
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}
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}
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/* Assign deferred parent/sibling ownership. */
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for (auto it = this->directories.rbegin(); it->second != this->root; it++) {
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cur_dir = it->second;
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cur_dir->sibling = cur_dir->parent->child;
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cur_dir->parent->child = cur_dir;
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}
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@ -384,7 +375,7 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
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header->file_table_ofs = header->file_hash_table_ofs + header->file_hash_table_size;
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/* For debugging, uncomment this to get a log of the generated metadata tables. */
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/*
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{
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FsFileSystem sd_fs;
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if (R_SUCCEEDED(fsMountSdcard(&sd_fs))) {
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@ -399,7 +390,7 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
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fsFsClose(&sd_fs);
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}
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}
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*/
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out_infos->emplace_back(header->dir_hash_table_ofs, this->dir_hash_table_size + this->dir_table_size + this->file_hash_table_size + this->file_table_size, metadata, RomFSDataSource::Memory);
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}
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@ -153,7 +153,6 @@ struct RomFSBuildDirectoryContext {
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RomFSBuildDirectoryContext *child = NULL;
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RomFSBuildDirectoryContext *sibling = NULL;
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RomFSBuildFileContext *file = NULL;
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void *tail;
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};
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struct RomFSBuildFileContext {
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