1 files changed, 39 insertions, 0 deletions
diff --git a/include/cru/base/platform/unix/UnixFileStream.h b/include/cru/base/platform/unix/UnixFileStream.h
new file mode 100644
index 00000000..8021f21a
--- /dev/null
+++ b/include/cru/base/platform/unix/UnixFileStream.h
@@ -0,0 +1,39 @@
+#pragma once
+
+#include "../../PreConfig.h"
+
+#ifndef CRU_PLATFORM_UNIX
+#error "This file can only be included on unix."
+#endif
+
+#include "../../io/Stream.h"
+
+namespace cru::platform::unix {
+class UnixFileStream : public io::Stream {
+ private:
+  static constexpr auto kLogTag = u"cru::platform::unix::UnixFileStream";
+
+ public:
+  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);
+  ~UnixFileStream() override;
+
+ public:
+  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 DoClose();
+
+ private:
+  int file_descriptor_;  // -1 for no file descriptor
+  bool auto_close_;
+};
+}  // namespace cru::platform::unix