[opensource] add clog tool

tools/ob_admin/clog_tool/ob_func_utils.h

@@ -0,0 +1,49 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OCEANBASE_LOG_TOOL_OB_FUN_H
+#define OCEANBASE_LOG_TOOL_OB_FUN_H
+
+#include <bitset>
+#include <libgen.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include "share/ob_define.h"
+#include "common/storage/ob_freeze_define.h"
+#include "common/cell/ob_cell_reader.h"
+#include "clog/ob_log_entry.h"
+#include "clog/ob_log_type.h"
+#include "storage/transaction/ob_trans_log.h"
+#include "storage/memtable/ob_memtable_mutator.h"
+
+using namespace oceanbase;
+using namespace oceanbase::clog;
+using namespace oceanbase::common;
+using namespace oceanbase::transaction;
+using namespace oceanbase::memtable;
+using namespace oceanbase::storage;
+
+// get the type of clog entry
+const char* get_log_type(const enum ObLogType log_type);
+const char* get_submit_log_type(const int64_t submit_log_type);
+const char* get_freeze_type(ObFreezeType freeze_type);
+
+// this func is used to parse file name
+int file_name_parser(const char* path, uint64_t& file_id);
+const char* get_row_dml_type_str(const ObRowDml& dml_type);
+
+bool is_ofs_file(const char* path);
+
+const int64_t LOG_FILE_MAX_SIZE = 64 * 1024 * 1024;
+
+#endif  // OCEANBASE_LOG_TOOL_OB_FUN_H