2 files changed, 77 insertions, 0 deletions
diff --git a/include/cru/common/io/MemoryStream.hpp b/include/cru/common/io/MemoryStream.hpp
new file mode 100644
index 00000000..96eea226
--- /dev/null
+++ b/include/cru/common/io/MemoryStream.hpp
@@ -0,0 +1,41 @@
+#pragma once
+
+#include "Stream.hpp"
+
+namespace cru::io {
+class CRU_BASE_API MemoryStream : public Stream {
+ public:
+  MemoryStream() = default;
+  MemoryStream(std::byte* buffer, Index size, bool read_only = false,
+               bool auto_release = false)
+      : buffer_(buffer),
+        size_(size),
+        read_only_(read_only),
+        auto_release_(auto_release) {}
+
+  CRU_DELETE_COPY(MemoryStream)
+  CRU_DELETE_MOVE(MemoryStream)
+
+  ~MemoryStream() override;
+
+ public:
+  bool CanSeek() override;
+  Index Tell() override;
+  void Seek(Index offset, SeekOrigin origin = SeekOrigin::Current) override;
+
+  bool CanRead() override;
+  Index Read(std::byte* buffer, Index offset, Index size) override;
+
+  bool CanWrite() override;
+  Index Write(const std::byte* buffer, Index offset, Index size) override;
+
+  void Flush() override;
+
+ private:
+  std::byte* buffer_ = nullptr;
+  Index size_ = 0;
+  Index position_ = 0;
+  bool auto_release_ = false;
+  bool read_only_ = false;
+};
+}  // namespace cru::io
diff --git a/include/cru/common/io/Stream.hpp b/include/cru/common/io/Stream.hpp
new file mode 100644
index 00000000..e13e5388
--- /dev/null
+++ b/include/cru/common/io/Stream.hpp
@@ -0,0 +1,36 @@
+#pragma once
+
+#include "../Base.hpp"
+
+#include <cstddef>
+
+namespace cru::io {
+class CRU_BASE_API Stream : public Object {
+ public:
+  enum class SeekOrigin { Current, Begin, End };
+
+  Stream() = default;
+
+  CRU_DELETE_COPY(Stream)
+  CRU_DELETE_MOVE(Stream)
+
+  ~Stream() override = default;
+
+ public:
+  virtual bool CanSeek() = 0;
+  virtual Index Tell() = 0;
+  virtual void Seek(Index offset, SeekOrigin origin = SeekOrigin::Current) = 0;
+  virtual void Rewind();
+  virtual Index GetSize();
+
+  virtual bool CanRead() = 0;
+  virtual Index Read(std::byte* buffer, Index offset, Index size) = 0;
+  virtual Index Read(std::byte* buffer, Index size);
+
+  virtual bool CanWrite() = 0;
+  virtual Index Write(const std::byte* buffer, Index offset, Index size) = 0;
+  virtual Index Write(const std::byte* buffer, Index size);
+
+  virtual void Flush() = 0;
+};
+}  // namespace cru::io