Method initDataFileHandle

src/storage/storage_manager.cpp:56–83

StorageManager::~StorageManager() = default;

void StorageManager::initDataFileHandle(VirtualFileSystem* vfs, main::ClientContext* context) {
    if (inMemory) {
        dataFH = memoryManager.getBufferManager()->getFileHandle(databasePath,
            FileHandle::O_PERSISTENT_FILE_IN_MEM, vfs, context);
    } else {
        auto flag = readOnly ? FileHandle::O_PERSISTENT_FILE_READ_ONLY :
                               FileHandle::O_PERSISTENT_FILE_CREATE_NOT_EXISTS;
        if (!readOnly) {
            flag |= FileHandle::O_LOCKED_PERSISTENT_FILE;
        }
        dataFH = memoryManager.getBufferManager()->getFileHandle(databasePath, flag, vfs, context);
        if (dataFH->getNumPages() == 0) {
            if (!readOnly) {
                // Reserve the first page for the database header.
                dataFH->getPageManager()->allocatePage();
                // Write a dummy database header page.
                const auto* initialHeader = getOrInitDatabaseHeader(*context);
                auto headerWriter =
                    std::make_shared<InMemFileWriter>(*MemoryManager::Get(*context));
                Serializer headerSerializer(headerWriter);
                initialHeader->serialize(headerSerializer);
                dataFH->getFileInfo()->writeFile(headerWriter->getPage(0).data(), LBUG_PAGE_SIZE,
                    StorageConstants::DB_HEADER_PAGE_IDX);
                dataFH->getFileInfo()->syncFile();
            }
        }
    }
}

void StorageManager::closeFileHandle() {
    if (dataFH != nullptr) {