update sources to ceph Nautilus 14.2.1

[ceph.git] / ceph / src / rocksdb / include / rocksdb / types.h

diff --git a/ceph/src/rocksdb/include/rocksdb/types.h b/ceph/src/rocksdb/include/rocksdb/types.h
index 6a477cab89e2f32e37ea422d48bcce50eb7fb67b..0868a74157e2d90cba361c39f10dc64c84e79d85 100644 (file)
--- a/ceph/src/rocksdb/include/rocksdb/types.h
+++ b/ceph/src/rocksdb/include/rocksdb/types.h
@@ -1,12 +1,12 @@
 // Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
 
-#ifndef STORAGE_ROCKSDB_INCLUDE_TYPES_H_
-#define STORAGE_ROCKSDB_INCLUDE_TYPES_H_
+#pragma once
 
 #include <stdint.h>
+#include "rocksdb/slice.h"
 
 namespace rocksdb {
 
@@ -15,6 +15,40 @@ namespace rocksdb {
 // Represents a sequence number in a WAL file.
 typedef uint64_t SequenceNumber;
 
-}  //  namespace rocksdb
+// User-oriented representation of internal key types.
+enum EntryType {
+  kEntryPut,
+  kEntryDelete,
+  kEntrySingleDelete,
+  kEntryMerge,
+  kEntryRangeDeletion,
+  kEntryBlobIndex,
+  kEntryOther,
+};
+
+// <user key, sequence number, and entry type> tuple.
+struct FullKey {
+  Slice user_key;
+  SequenceNumber sequence;
+  EntryType type;
+
+  FullKey()
+      : sequence(0)
+  {}  // Intentionally left uninitialized (for speed)
+  FullKey(const Slice& u, const SequenceNumber& seq, EntryType t)
+      : user_key(u), sequence(seq), type(t) { }
+  std::string DebugString(bool hex = false) const;
 
-#endif //  STORAGE_ROCKSDB_INCLUDE_TYPES_H_
+  void clear() {
+    user_key.clear();
+    sequence = 0;
+    type = EntryType::kEntryPut;
+  }
+};
+
+// Parse slice representing internal key to FullKey
+// Parsed FullKey is valid for as long as the memory pointed to by
+// internal_key is alive.
+bool ParseFullKey(const Slice& internal_key, FullKey* result);
+
+}  //  namespace rocksdb