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OpenVulkano/openVulkanoCpp/IO/Archive/ArchiveReader.hpp
2021-02-28 11:12:13 +01:00

75 lines
2.1 KiB
C++

/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
#pragma once
#include "ArchiveBase.hpp"
#include "Data/Containers/Array.hpp"
#include <string_view>
#include <optional>
#include <functional>
#include <ostream>
namespace openVulkanoCpp
{
class ArchiveReader final : public ArchiveBase
{
bool m_open = false;
bool m_eof = false;
public:
explicit ArchiveReader(const std::shared_ptr<spdlog::logger>& logger = nullptr);
explicit ArchiveReader(const char* archiveFile, const std::shared_ptr<spdlog::logger>& logger = nullptr);
explicit ArchiveReader(const std::string& archiveFile, const std::shared_ptr<spdlog::logger>& logger = nullptr);
ArchiveReader(const void* archiveBuffer, size_t size, const std::shared_ptr<spdlog::logger>& logger = nullptr);
~ArchiveReader() override;
bool Open(const char* archiveFile);
bool Open(const std::string& archiveFile);
bool OpenMemory(const void* archiveBuffer, size_t size);
bool Open(const std::vector<std::string>& archiveFiles);
bool Open(const std::filesystem::path& dir, const std::string& fileNamePattern);
[[nodiscard]] bool IsOpen() const { return m_open; }
size_t ExtractRemaining(std::string_view targetDir);
// Element wise operations
[[nodiscard]] bool HasNext() const;
void SkipNext();
bool SkipTill(std::filesystem::file_type type = std::filesystem::file_type::regular);
[[nodiscard]] FileDescription GetNextDescription() const;
std::optional<FileDescription> GetNextDirectory();
std::optional<FileDescription> ExtractNext(std::string_view targetDir);
std::optional<std::pair<FileDescription, Array<char>>> GetNextFile();
std::optional<std::pair<FileDescription, std::vector<char>>> GetNextFileAsVector();
std::optional<FileDescription> StreamNextFile(std::ostream& stream);
bool GetNextFileAsStream(const std::function<void(const FileDescription&, std::istream&)>& streamReader);
private:
void ReadNextHeader();
void PrepOpen();
};
}