1 files changed, 60 insertions, 0 deletions
diff --git a/storage/rocksdb/rocksdb/tools/rdb/db_wrapper.h b/storage/rocksdb/rocksdb/tools/rdb/db_wrapper.h
new file mode 100644
index 00000000..4b57320c
--- /dev/null
+++ b/storage/rocksdb/rocksdb/tools/rdb/db_wrapper.h
@@ -0,0 +1,60 @@
+// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+#ifndef DBWRAPPER_H
+#define DBWRAPPER_H
+
+#include <map>
+#include <node.h>
+
+#include "rocksdb/db.h"
+#include "rocksdb/slice.h"
+#include "rocksdb/options.h"
+
+using namespace v8;
+
+// Used to encapsulate a particular instance of an opened database.
+//
+// This object should not be used directly in C++; it exists solely to provide
+// a mapping from a JavaScript object to a C++ code that can use the RocksDB
+// API.
+class DBWrapper : public node::ObjectWrap {
+  public:
+    static void Init(Handle<Object> exports);
+
+  private:
+    explicit DBWrapper();
+    ~DBWrapper();
+
+    // Helper methods
+    static bool HasFamilyNamed(std::string& name, DBWrapper* db);
+    static bool AddToBatch(ROCKSDB_NAMESPACE::WriteBatch& batch, bool del,
+                           Handle<Array> array);
+    static bool AddToBatch(ROCKSDB_NAMESPACE::WriteBatch& batch, bool del,
+                           Handle<Array> array, DBWrapper* db_wrapper,
+                           std::string cf);
+    static Handle<Value> CompactRangeDefault(const v8::Arguments& args);
+    static Handle<Value> CompactColumnFamily(const Arguments& args);
+    static Handle<Value> CompactOptions(const Arguments& args);
+    static Handle<Value> CompactAll(const Arguments& args);
+
+    // C++ mappings of API methods
+    static Persistent<v8::Function> constructor;
+    static Handle<Value> Open(const Arguments& args);
+    static Handle<Value> New(const Arguments& args);
+    static Handle<Value> Get(const Arguments& args);
+    static Handle<Value> Put(const Arguments& args);
+    static Handle<Value> Delete(const Arguments& args);
+    static Handle<Value> Dump(const Arguments& args);
+    static Handle<Value> WriteBatch(const Arguments& args);
+    static Handle<Value> CreateColumnFamily(const Arguments& args);
+    static Handle<Value> CompactRange(const Arguments& args);
+    static Handle<Value> Close(const Arguments& args);
+
+    // Internal fields
+    ROCKSDB_NAMESPACE::Options options_;
+    ROCKSDB_NAMESPACE::Status status_;
+    ROCKSDB_NAMESPACE::DB* db_;
+    std::unordered_map<std::string, ROCKSDB_NAMESPACE::ColumnFamilyHandle*>
+        columnFamilies_;
+};
+
+#endif