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tools: acrn-crashlog: file system utils for acrn-crashlog

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This file provides file system operations for acrn-crashlog.

Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
This commit is contained in:
Liu Xinwu
2018-05-08 11:03:53 +08:00
committed by lijinxia
parent 88ba420af1
commit 87b8968314
3 changed files with 720 additions and 1 deletions
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92
tools/acrn-crashlog/common/include/fsutils.h Normal file
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/*
* Copyright (C) 2018 Intel Corporation
* SPDX-License-Identifier: BSD-3-Clause
*/
/*
* Copyright (C) 2018 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __FSUTILS_H__
#define __FSUTILS_H__
#include <sys/stat.h>
#include <dirent.h>
#include <stdio.h>
#include <errno.h>
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#define MIN(a, b) (((a) > (b)) ? (b) : (a))
#define KB (1024)
#define MB (KB * KB)
#define MAXLINESIZE (4 * KB)
#define CPBUFFERSIZE (4 * KB)
#define PAGE_SIZE (4 * KB)
struct mm_file_t {
char *path;
int fd;
char *begin;
int size;
};
static inline int file_exists(const char *filename)
{
struct stat info;
return (stat(filename, &info) == 0);
}
static inline int directory_exists(char *path)
{
struct stat info;
return (stat(path, &info) == 0 && S_ISDIR(info.st_mode));
}
static inline int get_file_size(const char *filepath)
{
struct stat info;
if (filepath == NULL)
return -ENOENT;
if (stat(filepath, &info) < 0)
return -errno;
return info.st_size;
}
char *mm_get_line(struct mm_file_t *mfile, int line);
int mkdir_p(char *path);
int mm_count_lines(struct mm_file_t *mfile);
struct mm_file_t *mmap_file(const char *path);
void unmap_file(struct mm_file_t *mfile);
int do_copy_tail(char *src, char *dest, int limit);
int do_mv(char *src, char *dest);
int append_file(char *filename, char *text);
int mm_replace_str_line(struct mm_file_t *mfile, char *replace,
int line);
int replace_file_head(char *filename, char *text);
int overwrite_file(char *filename, char *value);
int readline(int fd, char buffer[MAXLINESIZE]);
int file_read_string(const char *file, char *string, int size);
void file_reset_init(const char *filename);
int file_read_int(const char *filename, unsigned int *pcurrent);
int file_update_int(const char *filename, unsigned int current,
unsigned int max);
#endif