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LibCore: Extract Stream::OpenMode conversion helper into static function

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kleines Filmröllchen 2022-04-10 18:17:31 +02:00 • committed by Andreas Kling
parent f1d44da422
commit 1b67e19bd6
2 changed files with 19 additions and 12 deletions
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29
Userland/Libraries/LibCore/Stream.cpp
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@ -117,32 +117,37 @@ ErrorOr<NonnullOwnPtr<File>> File::adopt_fd(int fd, OpenMode mode)
return file;
}
ErrorOr<void> File::open_path(StringView filename, mode_t permissions)
int File::open_mode_to_options(OpenMode mode)
{
VERIFY(m_fd == -1);
int flags = 0;
if (has_flag(m_mode, OpenMode::ReadWrite)) {
if (has_flag(mode, OpenMode::ReadWrite)) {
flags |= O_RDWR | O_CREAT;
} else if (has_flag(m_mode, OpenMode::Read)) {
} else if (has_flag(mode, OpenMode::Read)) {
flags |= O_RDONLY;
} else if (has_flag(m_mode, OpenMode::Write)) {
} else if (has_flag(mode, OpenMode::Write)) {
flags |= O_WRONLY | O_CREAT;
bool should_truncate = !has_any_flag(m_mode, OpenMode::Append | OpenMode::MustBeNew);
bool should_truncate = !has_any_flag(mode, OpenMode::Append | OpenMode::MustBeNew);
if (should_truncate)
flags |= O_TRUNC;
}
if (has_flag(m_mode, OpenMode::Append))
if (has_flag(mode, OpenMode::Append))
flags |= O_APPEND;
if (has_flag(m_mode, OpenMode::Truncate))
if (has_flag(mode, OpenMode::Truncate))
flags |= O_TRUNC;
if (has_flag(m_mode, OpenMode::MustBeNew))
if (has_flag(mode, OpenMode::MustBeNew))
flags |= O_EXCL;
if (!has_flag(m_mode, OpenMode::KeepOnExec))
if (!has_flag(mode, OpenMode::KeepOnExec))
flags |= O_CLOEXEC;
if (!has_flag(m_mode, OpenMode::Nonblocking))
if (!has_flag(mode, OpenMode::Nonblocking))
flags |= O_NONBLOCK;
return flags;
}
ErrorOr<void> File::open_path(StringView filename, mode_t permissions)
{
VERIFY(m_fd == -1);
auto flags = open_mode_to_options(m_mode);
m_fd = TRY(System::open(filename.characters_without_null_termination(), flags, permissions));
return {};