1 files changed, 62 insertions, 0 deletions
diff --git a/src/rocksdb/logging/logging.h b/src/rocksdb/logging/logging.h
new file mode 100644
index 000000000..0fa882a78
--- /dev/null
+++ b/src/rocksdb/logging/logging.h
@@ -0,0 +1,62 @@
+//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  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).
+//
+// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+//
+// Must not be included from any .h files to avoid polluting the namespace
+// with macros.
+
+#pragma once
+
+// Helper macros that include information about file name and line number
+#define ROCKS_LOG_STRINGIFY(x) #x
+#define ROCKS_LOG_TOSTRING(x) ROCKS_LOG_STRINGIFY(x)
+#define ROCKS_LOG_PREPEND_FILE_LINE(FMT) \
+  ("[%s:" ROCKS_LOG_TOSTRING(__LINE__) "] " FMT)
+
+inline const char* RocksLogShorterFileName(const char* file) {
+  // 18 is the length of "logging/logging.h".
+  // If the name of this file changed, please change this number, too.
+  return file + (sizeof(__FILE__) > 18 ? sizeof(__FILE__) - 18 : 0);
+}
+
+// Don't inclide file/line info in HEADER level
+#define ROCKS_LOG_HEADER(LGR, FMT, ...) \
+  ROCKSDB_NAMESPACE::Log(InfoLogLevel::HEADER_LEVEL, LGR, FMT, ##__VA_ARGS__)
+
+#define ROCKS_LOG_AT_LEVEL(LGR, LVL, FMT, ...)                           \
+  ROCKSDB_NAMESPACE::Log((LVL), (LGR), ROCKS_LOG_PREPEND_FILE_LINE(FMT), \
+                         RocksLogShorterFileName(__FILE__), ##__VA_ARGS__)
+
+#define ROCKS_LOG_DEBUG(LGR, FMT, ...) \
+  ROCKS_LOG_AT_LEVEL((LGR), InfoLogLevel::DEBUG_LEVEL, FMT, ##__VA_ARGS__)
+
+#define ROCKS_LOG_INFO(LGR, FMT, ...) \
+  ROCKS_LOG_AT_LEVEL((LGR), InfoLogLevel::INFO_LEVEL, FMT, ##__VA_ARGS__)
+
+#define ROCKS_LOG_WARN(LGR, FMT, ...) \
+  ROCKS_LOG_AT_LEVEL((LGR), InfoLogLevel::WARN_LEVEL, FMT, ##__VA_ARGS__)
+
+#define ROCKS_LOG_ERROR(LGR, FMT, ...) \
+  ROCKS_LOG_AT_LEVEL((LGR), InfoLogLevel::ERROR_LEVEL, FMT, ##__VA_ARGS__)
+
+#define ROCKS_LOG_FATAL(LGR, FMT, ...) \
+  ROCKS_LOG_AT_LEVEL((LGR), InfoLogLevel::FATAL_LEVEL, FMT, ##__VA_ARGS__)
+
+#define ROCKS_LOG_BUFFER(LOG_BUF, FMT, ...)                                 \
+  ROCKSDB_NAMESPACE::LogToBuffer(LOG_BUF, ROCKS_LOG_PREPEND_FILE_LINE(FMT), \
+                                 RocksLogShorterFileName(__FILE__),         \
+                                 ##__VA_ARGS__)
+
+#define ROCKS_LOG_BUFFER_MAX_SZ(LOG_BUF, MAX_LOG_SIZE, FMT, ...) \
+  ROCKSDB_NAMESPACE::LogToBuffer(                                \
+      LOG_BUF, MAX_LOG_SIZE, ROCKS_LOG_PREPEND_FILE_LINE(FMT),   \
+      RocksLogShorterFileName(__FILE__), ##__VA_ARGS__)
+
+#define ROCKS_LOG_DETAILS(LGR, FMT, ...) \
+  ;  // due to overhead by default skip such lines
+// ROCKS_LOG_DEBUG(LGR, FMT, ##__VA_ARGS__)