io.h

/* Copyright (c) 2021 OceanBase and/or its affiliates. All rights reserved.
miniob is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:
         http://license.coscl.org.cn/MulanPSL2
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 PSL v2 for more details. */
 
//
// Created by Longda on 2010
//
 
#pragma once
 
#include <vector>
 
#include "common/defs.h"
#include "common/lang/string.h"
#include "common/lang/vector.h"
 
namespace common {
 
int readFromFile(const string &fileName, char *&data, size_t &fileSize);
 
int writeToFile(const string &fileName, const char *data, uint32_t dataSize, const char *openMode);
 
int getFileLines(const string &fileName, uint64_t &lineNum);
 
int getFileList(vector<string> &fileList, const string &path, const string &pattern, bool recursive);
int getFileNum(uint64_t &fileNum, const string &path, const string &pattern, bool recursive);
int getDirList(vector<string> &dirList, const string &path, const string &pattern);
 
int touch(const string &fileName);
 
int getFileSize(const char *filePath, uint64_t &fileLen);
 
int writen(int fd, const void *buf, int size);
 
int readn(int fd, void *buf, int size);
 
}  // namespace common