/**

* Copyright (c) 2021 OceanBase

* SPDX-License-Identifier: Apache-2.0

*/

#ifndef OCEANBASE_OBSERVER_OB_CHECK_PARAMS_

#define OCEANBASE_OBSERVER_OB_CHECK_PARAMS_

#include "deps/oblib/src/lib/file/file_directory_utils.h"

#include "share/ob_define.h"

#include "share/ob_errno.h"

#include <fstream>

#include <sys/resource.h>

namespace oceanbase

{

using namespace common;

namespace observer

{

using namespace common;

class CheckAllParams

{

public:

static int check_all_params(bool strict_check);

private:

static int read_one_line(const char* file_path, char* buffer, size_t buffer_size);

static bool is_path_valid(const char *file_name);

static int check_vm_max_map_count(bool strict_check); // 1

static int check_vm_min_free_kbytes(bool strict_check); // 2

static int check_vm_overcommit_memory(bool strict_check); // 3

static int check_fs_file_max(bool strict_check);

static int check_ulimit_open_files(bool strict_check);

static int check_ulimit_max_user_processes(bool strict_check);

static int check_ulimit_core_file_size(bool strict_check);

static int check_ulimit_stack_size(bool strict_check); // 8

static int check_current_clocksource(bool strict_check); // 9

};

int check_os_params(bool strict_check_params);

} // namespace observer

} // namespace oceanbase

#endif