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更新硬件SDK
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kerwincui
301
sdk/合宙/air780e/csdk/luatos-soc-2022/interface/include/luat_fs.h
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301
sdk/合宙/air780e/csdk/luatos-soc-2022/interface/include/luat_fs.h
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/*
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* Copyright (c) 2022 OpenLuat & AirM2M
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef LUAT_FS_H
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#define LUAT_FS_H
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//#include "luat_base.h"
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#include "stdio.h"
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/**
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* @defgroup luat_fs 文件系统接口
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* @{
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*/
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#ifndef LUAT_WEAK
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#define LUAT_WEAK __attribute__((weak))
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#endif
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typedef struct luat_fs_conf {
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char* busname;
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char* type;
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char* filesystem;
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const char* mount_point;
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} luat_fs_conf_t;
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typedef struct luat_fs_info
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{
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char filesystem[8]; // 文件系统类型
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unsigned char type; // 连接方式, 片上,spi flash, tf卡等
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size_t total_block;
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size_t block_used;
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size_t block_size;
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}luat_fs_info_t;
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/**
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* @brief 文件系统初始化
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* @return int =0成功，其他失败
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*/
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int luat_fs_init(void);
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// int luat_fs_mkfs(luat_fs_conf_t *conf);
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// int luat_fs_mount(luat_fs_conf_t *conf);
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// int luat_fs_umount(luat_fs_conf_t *conf);
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/**
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* @brief 获取文件系统状态
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* @param path[IN] 挂载路径, 通常为 /
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* @param info[OUT] 文件系统信息
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* @return int =0成功，其他失败
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*/
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int luat_fs_info(const char* path, luat_fs_info_t *info);
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/**
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* @brief 打开文件,类似于fopen
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* @param path[IN] 文件路径
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* @param mode[IN] 打开模式,与posix类型, 例如 "r" "rw" "w" "w+" "a"
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* @return FILE* 文件句柄,失败返回NULL
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*/
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FILE* luat_fs_fopen(const char *filename, const char *mode);
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/**
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* @brief 读到单个字节,类似于getc
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* @param stream[IN] 文件句柄
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* @return int >=0读取成功返回, -1失败, 例如读取到文件尾部
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*/
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int luat_fs_getc(FILE* stream);
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/**
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* @brief 设置句柄位置,类似于fseek
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* @param stream[IN] 文件句柄
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* @param offset[IN] 偏移量
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* @param origin[IN] 参考点, 例如 SEEK_SET 绝对坐标, SEEK_END 结尾, SEEK_CUR 当前
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* @return int =0成功,否则失败
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*/
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int luat_fs_fseek(FILE* stream, long int offset, int origin);
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/**
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* @brief 获取句柄位置,类似于ftell
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* @param stream[IN] 文件句柄
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* @return int >=0当前位置, 否则失败
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*/
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int luat_fs_ftell(FILE* stream);
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/**
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* @brief 关闭句柄位置,类似于fclose
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* @param stream[IN] 文件句柄
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* @return int =0成功,否则失败
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*/
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int luat_fs_fclose(FILE* stream);
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/**
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* @brief 是否已经到文件结尾,类似于feof
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* @param stream[IN] 文件句柄
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* @return int =0未到文件尾部,其余为到达文件尾部
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*/
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int luat_fs_feof(FILE* stream);
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/**
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* @brief 是否有文件系统错误,类似于ferror
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* @param stream[IN] 文件句柄
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* @return int =0无错误, 其余为错误值
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*/
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int luat_fs_ferror(FILE *stream);
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/**
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* @brief 读取文件,类似于fread
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* @param ptr[OUT] 存放读取数据的缓冲区
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* @param size[IN] 单次读取大小
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* @param nmemb[IN] 读取次数
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* @param stream[IN] 文件句柄
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* @return int >=0实际读取的数量,<0出错
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*/
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size_t luat_fs_fread(void *ptr, size_t size, size_t nmemb, FILE *stream);
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/**
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* @brief 写入文件,类似于fwrite
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* @param ptr[OUT] 存放写入数据的缓冲区
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* @param size[IN] 单次读取大小
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* @param nmemb[IN] 读取次数
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* @param stream[IN] 文件句柄
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* @return int >=0实际写入的数量,<0出错
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*/
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size_t luat_fs_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);
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/**
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* @brief 删除文件,类似于remove
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* @param filename[IN] 文件路径
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* @return int =0成功,否则失败
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*/
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int luat_fs_remove(const char *filename);
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/**
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* @brief 文件改名,类似于rename
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* @param old_filename[IN] 原文件路径
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* @param new_filename[IN] 新文件路径
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* @return int =0成功,否则失败
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*/
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int luat_fs_rename(const char *old_filename, const char *new_filename);
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/**
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* @brief 文件大小,类似于fsize
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* @param filename[IN] 文件路径
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* @return int >=0文件大小, <0文件存在或者不可访问
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*/
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size_t luat_fs_fsize(const char *filename);
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/**
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* @brief 文件是否存在,类似于fexist
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* @param filename[IN] 文件路径
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* @return int =0不存在,否则存在
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*/
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int luat_fs_fexist(const char *filename);
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/**
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* @brief 截断文件,类似于ftruncate
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* @param fp[IN] 文件句柄
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* @return int >=0截断后的文件大小,否则失败
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*/
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// int luat_fs_ftruncate(FILE* fp, size_t len);
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/**
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* @brief 截断文件,类似于truncate
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* @param filename[IN] 文件路径
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* @return int >=0截断后的文件大小,否则失败
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*/
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int luat_fs_truncate(const char* filename, size_t len);
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// int luat_fs_readline(char * buf, int bufsize, FILE * stream);
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// 文件夹相关的API
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typedef struct luat_fs_dirent
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{
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unsigned char d_type; //0:文件；1：文件夹(EC618不支持创建目录操作，所以理论上不会出现为1的情况)
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char d_name[255];
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}luat_fs_dirent_t;
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/**
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* @brief 创建文件夹,当前EC618不支持
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* @param dir[IN] 文件夹路径
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* @return int =0成功,否则失败
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*/
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int luat_fs_mkdir(char const* dir);
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/**
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* @brief 删除文件夹,必须为空文件夹
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* @param dir[IN] 文件夹路径
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* @return int =0成功,否则失败
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*/
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int luat_fs_rmdir(char const* dir);
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/**
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* @brief 遍历文件夹
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* @param dir[IN] 文件夹路径
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* @param ents[OUT] 文件列表,必须已分配内存,且不小于len个元素
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* @param offset[IN] 跳过多少个文件
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* @param len[IN] 最多读取多少个文件
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* @return int =>0读取到文件个数,否则失败
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*/
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int luat_fs_lsdir(char const* dir, luat_fs_dirent_t* ents, size_t offset, size_t len);
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/**
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* @brief 文件系统是否已经就绪
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* @return int 0未就绪, >0已就绪
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*/
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int luat_fs_ready(void);
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#if LUAT_USE_FS_VFS
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#ifndef LUAT_VFS_FILESYSTEM_MAX
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#define LUAT_VFS_FILESYSTEM_MAX 4
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#endif
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#ifndef LUAT_VFS_FILESYSTEM_MOUNT_MAX
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#define LUAT_VFS_FILESYSTEM_MOUNT_MAX 4
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#endif
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#ifndef LUAT_VFS_FILESYSTEM_FD_MAX
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#define LUAT_VFS_FILESYSTEM_FD_MAX 16
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#endif
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struct luat_vfs_file_opts {
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FILE* (*fopen)(void* fsdata, const char *filename, const char *mode);
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int (*getc)(void* fsdata, FILE* stream);
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int (*fseek)(void* fsdata, FILE* stream, long int offset, int origin);
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int (*ftell)(void* fsdata, FILE* stream);
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int (*fclose)(void* fsdata, FILE* stream);
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int (*feof)(void* fsdata, FILE* stream);
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int (*ferror)(void* fsdata, FILE *stream);
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size_t (*fread)(void* fsdata, void *ptr, size_t size, size_t nmemb, FILE *stream);
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size_t (*fwrite)(void* fsdata, const void *ptr, size_t size, size_t nmemb, FILE *stream);
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};
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struct luat_vfs_filesystem_opts {
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int (*remove)(void* fsdata, const char *filename);
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int (*rename)(void* fsdata, const char *old_filename, const char *new_filename);
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size_t (*fsize)(void* fsdata, const char *filename);
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int (*fexist)(void* fsdata, const char *filename);
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int (*mkfs)(void* fsdata, luat_fs_conf_t *conf);
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int (*mount)(void** fsdata, luat_fs_conf_t *conf);
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int (*umount)(void* fsdata, luat_fs_conf_t *conf);
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int (*info)(void* fsdata, const char* path, luat_fs_info_t *conf);
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int (*mkdir)(void* fsdata, char const* _DirName);
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int (*rmdir)(void* fsdata, char const* _DirName);
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int (*lsdir)(void* fsdata, char const* _DirName, luat_fs_dirent_t* ents, size_t offset, size_t len);
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};
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typedef struct luat_vfs_filesystem {
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char name[16];
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struct luat_vfs_filesystem_opts opts;
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struct luat_vfs_file_opts fopts;
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}luat_vfs_filesystem_t;
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typedef struct luat_vfs_mount {
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struct luat_vfs_filesystem *fs;
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void *userdata;
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char prefix[16];
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int ok;
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} luat_vfs_mount_t;
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typedef struct luat_vfs_fd{
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FILE* fd;
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luat_vfs_mount_t *fsMount;
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}luat_vfs_fd_t;
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typedef struct luat_vfs
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{
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struct luat_vfs_filesystem* fsList[LUAT_VFS_FILESYSTEM_MAX];
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luat_vfs_mount_t mounted[LUAT_VFS_FILESYSTEM_MOUNT_MAX];
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luat_vfs_fd_t fds[LUAT_VFS_FILESYSTEM_FD_MAX+1];
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}luat_vfs_t;
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int luat_vfs_init(void* params);
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int luat_vfs_reg(const struct luat_vfs_filesystem* fs);
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FILE* luat_vfs_add_fd(FILE* fd, luat_vfs_mount_t * mount);
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int luat_vfs_rm_fd(FILE* fd);
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const char* luat_vfs_mmap(FILE* fd);
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#endif
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/** @}*/
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#endif
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