77 lines
3.9 KiB
C++
77 lines
3.9 KiB
C++
/****************************************************************************
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* Copyright (C) 2016-2021 Maschell
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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#include "NodeEntries.h"
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#include <coreinit/debug.h>
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std::optional<std::shared_ptr<NodeEntry>> NodeEntries::DeserializeImpl(const std::vector<uint8_t> &pData,
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uint32_t pOffset,
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const std::optional<std::shared_ptr<DirectoryEntry>> &pParent,
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uint32_t pEntryNumber,
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const std::shared_ptr<SectionEntries> &pSectionEntries,
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const std::shared_ptr<StringTable> &pStringTable,
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const SectionBlockSize &pBlockSize) {
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auto nodeEntry = NodeEntry::AutoDeserialize(pData, pOffset, pParent, pEntryNumber, pSectionEntries, pStringTable, pBlockSize);
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if (!nodeEntry.has_value()) {
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DEBUG_FUNCTION_LINE("Failed to AutoDeserialize NodeEntry");
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return {};
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}
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auto asDirEntry = std::dynamic_pointer_cast<DirectoryEntry>(nodeEntry.value());
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if (asDirEntry != nullptr) {
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uint32_t curEntryNumber = asDirEntry->entryNumber + 1;
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while (curEntryNumber < asDirEntry->lastEntryNumber) {
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auto entry = NodeEntries::DeserializeImpl(pData, pOffset + (curEntryNumber - asDirEntry->entryNumber) * NodeEntry::LENGTH,
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asDirEntry, curEntryNumber, pSectionEntries, pStringTable, pBlockSize);
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if (!entry.has_value()) {
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DEBUG_FUNCTION_LINE("Failed to Deserialize child of NodeEntry");
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return {};
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}
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asDirEntry->addChild(entry.value());
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auto childAsDir = std::dynamic_pointer_cast<DirectoryEntry>(entry.value());
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if (childAsDir != nullptr) {
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curEntryNumber = childAsDir->lastEntryNumber;
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} else {
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curEntryNumber++;
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}
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}
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}
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return nodeEntry;
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}
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std::optional<std::unique_ptr<NodeEntries>>
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NodeEntries::make_unique(const std::vector<uint8_t> &data, uint32_t offset, const std::shared_ptr<SectionEntries> &pSectionEntries, const std::shared_ptr<StringTable> &pStringTable,
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const SectionBlockSize &blockSize) {
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auto rootEntry = NodeEntries::DeserializeImpl(data, offset, std::nullopt, 0, pSectionEntries, pStringTable, blockSize);
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if (!rootEntry.has_value()) {
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DEBUG_FUNCTION_LINE("DeserializeImpl for root entry has failed");
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return {};
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}
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auto rootEntryCasted = std::dynamic_pointer_cast<RootEntry>(rootEntry.value());
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if (rootEntryCasted != nullptr) {
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return std::unique_ptr<NodeEntries>(new NodeEntries(rootEntryCasted));
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}
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DEBUG_FUNCTION_LINE("Failed to parse Root");
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return {};
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}
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std::shared_ptr<RootEntry> NodeEntries::getRootEntry() const {
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return rootEntry;
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}
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NodeEntries::NodeEntries(const std::shared_ptr<RootEntry> &pEntry) {
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rootEntry = pEntry;
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}
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