1 files changed, 45 insertions, 0 deletions
diff --git a/src/crimson/os/cyanstore/cyan_object.h b/src/crimson/os/cyanstore/cyan_object.h
new file mode 100644
index 000000000..f19b87212
--- /dev/null
+++ b/src/crimson/os/cyanstore/cyan_object.h
@@ -0,0 +1,45 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#pragma once
+
+#include <cstddef>
+#include <map>
+#include <string>
+#include <boost/intrusive_ptr.hpp>
+#include <boost/smart_ptr/intrusive_ref_counter.hpp>
+
+#include "include/buffer.h"
+
+namespace crimson::os {
+
+struct Object : public boost::intrusive_ref_counter<
+  Object,
+  boost::thread_unsafe_counter>
+{
+  using bufferlist = ceph::bufferlist;
+
+  bufferlist data;
+  // use transparent comparator for better performance, see
+  // https://en.cppreference.com/w/cpp/utility/functional/less_void
+  std::map<std::string,bufferptr,std::less<>> xattr;
+  bufferlist omap_header;
+  std::map<std::string,bufferlist> omap;
+
+  typedef boost::intrusive_ptr<Object> Ref;
+
+  Object() = default;
+
+  // interface for object data
+  size_t get_size() const;
+  ceph::bufferlist read(uint64_t offset, uint64_t len);
+  int write(uint64_t offset, const bufferlist &bl);
+  int clone(Object *src, uint64_t srcoff, uint64_t len,
+	     uint64_t dstoff);
+  int truncate(uint64_t offset);
+
+  void encode(bufferlist& bl) const;
+  void decode(bufferlist::const_iterator& p);
+};
+using ObjectRef = boost::intrusive_ptr<Object>;
+
+}