diff options
Diffstat (limited to 'source/fud_c_file.cpp')
| -rw-r--r-- | source/fud_c_file.cpp | 199 |
1 files changed, 42 insertions, 157 deletions
diff --git a/source/fud_c_file.cpp b/source/fud_c_file.cpp index b323847..e2e71bf 100644 --- a/source/fud_c_file.cpp +++ b/source/fud_c_file.cpp @@ -34,186 +34,71 @@ CBinaryFile::CBinaryFile(const String& filename, CFileMode mode, const String& e { } -CBinaryFile::~CBinaryFile() { - close(); -} - -FudStatus CBinaryFile::open() +CBinaryFile::CBinaryFile(CBinaryFile&& rhs) : + m_filename{std::move(rhs.m_filename)}, + m_extraFlags{std::move(rhs.m_extraFlags)}, + m_mode{std::move(rhs.m_mode)}, + m_modeFlags{std::move(rhs.m_modeFlags)}, + m_file{rhs.m_file} { - if (!m_filename.valid()) { - return FudStatus::ObjectInvalid; - } - m_file = fopen(m_filename.c_str(), m_mode.c_str()); - return m_file != nullptr ? FudStatus::Success : FudStatus::Failure; } -void CBinaryFile::close() -{ - if (m_file != nullptr) { - fclose(m_file); - m_file = nullptr; - } +CBinaryFile::~CBinaryFile() { + close(); } -const FILE* CBinaryFile::file() const +CBinaryFile& CBinaryFile::operator=(CBinaryFile&& rhs) { - return m_file; -} + close(); -FILE* CBinaryFile::file() -{ - return m_file; -} + m_filename = std::move(rhs.m_filename); + m_extraFlags = std::move(rhs.m_extraFlags); + m_mode = std::move(rhs.m_mode); + m_modeFlags = std::move(rhs.m_modeFlags); + m_file = rhs.m_file; -bool CBinaryFile::isOpen() const -{ - return m_file != nullptr; + return *this; } -Result<size_t, FudStatus> CBinaryFile::size() const +CTextFile::CTextFile(const String& filename, CFileMode mode) + : m_filename{filename}, + m_mode{CTextFileModeFromFlags(mode)}, + m_modeFlags{mode} { - using RetType = Result<size_t, FudStatus>; - if (!isOpen()) { - return RetType::error(FudStatus::OperationInvalid); - } - - auto seekStatus = fseek(m_file, 0, SEEK_END); - if (seekStatus != 0) { - return RetType::error(FudStatus::Failure); - } - - auto fileSizeResult = ftell(m_file); - if (fileSizeResult < 0) { - return RetType::error(FudStatus::Failure); - } - - auto fileSize = static_cast<size_t>(fileSizeResult); - - auto resetStatus = reset(); - if (resetStatus != FudStatus::Success) { - return RetType::error(resetStatus); - } - - return RetType::okay(fileSize); } -ReadResult CBinaryFile::read(void* destination, size_t destinationSize, size_t length) +CTextFile::CTextFile(const String& filename, CFileMode mode, const String& extraFlags) + : m_filename{filename}, + m_extraFlags{extraFlags}, + m_mode{String(CTextFileModeFromFlags(mode)).catenate(extraFlags)}, + m_modeFlags{mode} { - return read(destination, destinationSize, length, 0); } -ReadResult CBinaryFile::read(void* destination, size_t destinationSize, size_t length, size_t offset) +CTextFile::CTextFile(CTextFile&& rhs) : + m_filename{std::move(rhs.m_filename)}, + m_extraFlags{std::move(rhs.m_extraFlags)}, + m_mode{std::move(rhs.m_mode)}, + m_modeFlags{std::move(rhs.m_modeFlags)}, + m_file{rhs.m_file} { - ReadResult result{}; - if (length == 0) { - return result; - } - - if (destination == nullptr) { - result.status = FudStatus::NullPointer; - return result; - } - - if (offset > LONG_MAX || SIZE_MAX - offset < length || destinationSize < length) { - result.status = FudStatus::InvalidInput; - return result; - } - - auto fileSizeResult = size(); - if (fileSizeResult.isError()) { - result.status = fileSizeResult.getError(); - return result; - } - - auto fileSize = fileSizeResult.getOkay(); - if (offset + length > fileSize) { - result.status = FudStatus::InvalidInput; - return result; - } - - auto seekResult = fseek(m_file, static_cast<long>(offset), SEEK_SET); - if (seekResult != 0) { - result.status = FudStatus::Failure; - return result; - } - - auto* destBytes = static_cast<char*>(destination); - result.bytesRead = fread(destBytes, 1, length, m_file); - static_cast<void>(reset()); - if (result.bytesRead != length) { - result.status = FudStatus::Partial; - } else { - result.status = FudStatus::Success; - } - - return result; } -WriteResult CBinaryFile::write(const void* source, size_t sourceSize, size_t length) -{ - auto offsetResult = size(); - if (offsetResult.isError()) { - return WriteResult{0, offsetResult.getError()}; - } - - return write(source, sourceSize, length, offsetResult.getOkay()); +CTextFile::~CTextFile() { + close(); } -WriteResult CBinaryFile::write(const void* source, size_t sourceSize, size_t length, size_t offset) +CTextFile& CTextFile::operator=(CTextFile&& rhs) { - WriteResult result{}; - if (length == 0) { - return result; - } - - if (source == nullptr) { - result.status = FudStatus::NullPointer; - return result; - } - - if (offset > LONG_MAX || SIZE_MAX - offset < length || sourceSize < length) { - result.status = FudStatus::InvalidInput; - return result; - } - - auto fileSizeResult = size(); - if (fileSizeResult.isError()) { - result.status = fileSizeResult.getError(); - return result; - } - - // TODO: proper way of handling this - auto fileSize = fileSizeResult.getOkay(); - int seekResult; - if (offset > fileSize) { - seekResult = fseek(m_file, 0, SEEK_END); - } else { - seekResult = fseek(m_file, static_cast<long>(offset), SEEK_SET); - } - - if (seekResult != 0) { - result.status = FudStatus::Failure; - return result; - } - - auto* sourceBytes = static_cast<const char*>(source); - result.bytesWritten = fwrite(sourceBytes, 1, length, m_file); - static_cast<void>(reset()); - if (result.bytesWritten != length) { - result.status = FudStatus::Partial; - } else { - result.status = FudStatus::Success; - } - - return result; -} + close(); + + m_filename = std::move(rhs.m_filename); + m_extraFlags = std::move(rhs.m_extraFlags); + m_mode = std::move(rhs.m_mode); + m_modeFlags = std::move(rhs.m_modeFlags); + m_file = rhs.m_file; -FudStatus CBinaryFile::reset() const { - if (!isOpen()) { - return FudStatus::OperationInvalid; - } - auto result = fseek(m_file, 0, SEEK_SET); - return result == 0 ? FudStatus::Success : FudStatus::Failure; + return *this; } } // namespace fud |