1 files changed, 7 insertions, 20 deletions
diff --git a/include/cru/common/platform/unix/UnixFileStream.h b/include/cru/common/platform/unix/UnixFileStream.h
index 43615776..8021f21a 100644
--- a/include/cru/common/platform/unix/UnixFileStream.h
+++ b/include/cru/common/platform/unix/UnixFileStream.h
@@ -17,36 +17,23 @@ class UnixFileStream : public io::Stream {
   UnixFileStream(const char* path, int oflag, mode_t mode = 0660);
   UnixFileStream(int fd, bool can_seek, bool can_read, bool can_write,
                  bool auto_close);
-
-  CRU_DELETE_COPY(UnixFileStream)
-  CRU_DELETE_MOVE(UnixFileStream)
-
   ~UnixFileStream() override;
 
  public:
-  bool CanSeek() override;
-  Index Seek(Index offset, SeekOrigin origin = SeekOrigin::Current) override;
-
-  bool CanRead() override;
-  Index Read(std::byte* buffer, Index offset, Index size) override;
-  using Stream::Read;
-
-  bool CanWrite() override;
-  Index Write(const std::byte* buffer, Index offset, Index size) override;
-  using Stream::Write;
-
-  void Close() override;
+  CRU_STREAM_IMPLEMENT_CLOSE_BY_DO_CLOSE
 
   int GetFileDescriptor() const { return file_descriptor_; }
 
+ protected:
+  Index DoSeek(Index offset, SeekOrigin origin = SeekOrigin::Current) override;
+  Index DoRead(std::byte* buffer, Index offset, Index size) override;
+  Index DoWrite(const std::byte* buffer, Index offset, Index size) override;
+
  private:
-  void CheckClosed();
+  void DoClose();
 
  private:
   int file_descriptor_;  // -1 for no file descriptor
-  bool can_seek_;
-  bool can_read_;
-  bool can_write_;
   bool auto_close_;
 };
 }  // namespace cru::platform::unix