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LibCore: Add option to Stream::File to not close the file on destruction

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davidot 2022-10-12 11:31:34 +02:00 • committed by Andrew Kaster
parent 279121fa10
commit e0cccaa583
2 changed files with 16 additions and 5 deletions
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17
Userland/Libraries/LibCore/Stream.h
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@ -183,6 +183,11 @@ enum class OpenMode : unsigned {
Nonblocking = 64,
};
enum class ShouldCloseFileDescriptor {
Yes,
No,
};
AK_ENUM_BITWISE_OPERATORS(OpenMode)
class File final : public SeekableStream {
@ -190,7 +195,7 @@ class File final : public SeekableStream {
public:
static ErrorOr<NonnullOwnPtr<File>> open(StringView filename, OpenMode, mode_t = 0644);
static ErrorOr<NonnullOwnPtr<File>> adopt_fd(int fd, OpenMode);
static ErrorOr<NonnullOwnPtr<File>> adopt_fd(int fd, OpenMode, ShouldCloseFileDescriptor = ShouldCloseFileDescriptor::Yes);
static bool exists(StringView filename);
static ErrorOr<NonnullOwnPtr<File>> open_file_or_standard_stream(StringView filename, OpenMode mode);
@ -219,13 +224,18 @@ public:
virtual ErrorOr<off_t> seek(i64 offset, SeekMode) override;
virtual ErrorOr<void> truncate(off_t length) override;
virtual ~File() override { close(); }
virtual ~File() override
{
if (m_should_close_file_descriptor == ShouldCloseFileDescriptor::Yes)
close();
}
static int open_mode_to_options(OpenMode mode);
private:
File(OpenMode mode)
File(OpenMode mode, ShouldCloseFileDescriptor should_close = ShouldCloseFileDescriptor::Yes)
: m_mode(mode)
, m_should_close_file_descriptor(should_close)
{
}
@ -234,6 +244,7 @@ private:
OpenMode m_mode { OpenMode::NotOpen };
int m_fd { -1 };
bool m_last_read_was_eof { false };
ShouldCloseFileDescriptor m_should_close_file_descriptor { ShouldCloseFileDescriptor::Yes };
};
class PosixSocketHelper {