unleashed-firmware/applications/storage/storage.h
SG ad421a81bc
[FL-1191][FL-1524] Filesystem rework (#568)
* FS-Api: removed datetime manipulation functions and most of the file flags
* Filesystem: common proxy api
* Filesystem: renamed to Storage. Work has begun on a glue layer. Added functions for reentrance.
* Storage: sd mount and sd file open
* Storage: sd file close
* Storage: temporary test app
* Storage: free filedata on close
* Storage: sd file read and write
* Storage: added internal storage (LittleFS)
* Storage: renamed internal commands
* Storage: seek, tell, truncate, size, sync, eof
* Storage: error descriptions
* Storage: directory management api (open, close, read, rewind)
* Storage: common management api (stat, fs_stat, remove, rename, mkdir)
* Dolphin app and Notifications app now use raw storage.
* Storage: storage statuses renamed. Implemented sd card icon.
* Storage: added raw sd-card api.
* Storage settings: work started
* Assets: use new icons approach
* Storage settings: working storage settings
* Storage: completely redesigned api, no longer sticking out FS_Api
* Storage: more simplified api, getting error_id from file is hidden from user, pointer to api is hidden inside file
* Storage: cli info and format commands
* Storage-cli: file list
* Storage: a simpler and more reliable api
* FatFS: slightly lighter and faster config. Also disabled reentrancy and file locking functions. They moved to a storage service.
* Storage-cli: accommodate to the new cli api.
* Storage: filesystem api is separated into internal and common api.
* Cli: added the ability to print the list of free heap blocks
* Storage: uses a list instead of an array to store the StorageFile. Rewrote api calls to use semaphores instead of thread flags.
* Storage settings: added the ability to benchmark the SD card.
* Gui module file select: uses new storage api
* Apps: removed deprecated sd_card_test application
* Args lib: support for enquoted arguments
* Dialogs: a new gui app for simple non-asynchronous apps
* Dialogs: view holder for easy single view work
* File worker: use new storage api
* IButton and lfrrfid apps: save keys to any storage
* Apps: fix ibutton and lfrfid stack, remove sd_card_test.
* SD filesystem: app removed
* File worker: fixed api pointer type
* Subghz: loading assets using the new storage api
* NFC: use the new storage api
* Dialogs: the better api for the message element
* Archive: use new storage api
* Irda: changed assest path, changed app path
* FileWorker: removed unused file_buf_cnt
* Storage: copying and renaming files now works between storages
* Storage cli: read, copy, remove, rename commands
* Archive: removed commented code
* Storage cli: write command
* Applications: add SRV_STORAGE and SRV_DIALOGS
* Internal-storage: removed
* Storage: improved api
* Storage app: changed api pointer from StorageApp to Storage
* Storage: better file_id handling
* Storage: more consistent errors
* Loader: support for NULL icons
* Storage: do nothing with the lfs file or directory if it is not open
* Storage: fix typo
* Storage: minor float usage cleanup, rename some symbols.
* Storage: compact doxygen comments.

Co-authored-by: あく <alleteam@gmail.com>
2021-07-23 15:20:19 +03:00

235 lines
7.4 KiB
C

#pragma once
#include <furi.h>
#include "filesystem-api-defines.h"
#include "storage-sd-api.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct Storage Storage;
/** Allocates and initializes a file descriptor
* @return File*
*/
File* storage_file_alloc(Storage* storage);
/** Frees the file descriptor. Closes the file if it was open.
*/
void storage_file_free(File* file);
/******************* File Functions *******************/
/** Opens an existing file or create a new one.
* @param file pointer to file object.
* @param path path to file
* @param access_mode access mode from FS_AccessMode
* @param open_mode open mode from FS_OpenMode
* @return success flag. You need to close the file even if the open operation failed.
*/
bool storage_file_open(
File* file,
const char* path,
FS_AccessMode access_mode,
FS_OpenMode open_mode);
/** Close the file.
* @param file pointer to a file object, the file object will be freed.
* @return success flag
*/
bool storage_file_close(File* file);
/** Tells if the file is open
* @param file pointer to a file object
* @return bool true if file is open
*/
bool storage_file_is_open(File* file);
/** Reads bytes from a file into a buffer
* @param file pointer to file object.
* @param buff pointer to a buffer, for reading
* @param bytes_to_read how many bytes to read. Must be less than or equal to the size of the buffer.
* @return uint16_t how many bytes were actually readed
*/
uint16_t storage_file_read(File* file, void* buff, uint16_t bytes_to_read);
/** Writes bytes from a buffer to a file
* @param file pointer to file object.
* @param buff pointer to buffer, for writing
* @param bytes_to_write how many bytes to write. Must be less than or equal to the size of the buffer.
* @return uint16_t how many bytes were actually written
*/
uint16_t storage_file_write(File* file, const void* buff, uint16_t bytes_to_write);
/** Moves the r/w pointer
* @param file pointer to file object.
* @param offset offset to move the r/w pointer
* @param from_start set an offset from the start or from the current position
* @return success flag
*/
bool storage_file_seek(File* file, uint32_t offset, bool from_start);
/** Gets the position of the r/w pointer
* @param file pointer to file object.
* @return uint64_t position of the r/w pointer
*/
uint64_t storage_file_tell(File* file);
/** Truncates the file size to the current position of the r/w pointer
* @param file pointer to file object.
* @return bool success flag
*/
bool storage_file_truncate(File* file);
/** Gets the size of the file
* @param file pointer to file object.
* @return uint64_t size of the file
*/
uint64_t storage_file_size(File* file);
/** Writes file cache to storage
* @param file pointer to file object.
* @return bool success flag
*/
bool storage_file_sync(File* file);
/** Checks that the r/w pointer is at the end of the file
* @param file pointer to file object.
* @return bool success flag
*/
bool storage_file_eof(File* file);
/******************* Dir Functions *******************/
/** Opens a directory to get objects from it
* @param app pointer to the api
* @param file pointer to file object.
* @param path path to directory
* @return bool success flag. You need to close the directory even if the open operation failed.
*/
bool storage_dir_open(File* file, const char* path);
/** Close the directory. Also free file handle structure and point it to the NULL.
* @param file pointer to a file object.
* @return bool success flag
*/
bool storage_dir_close(File* file);
/** Reads the next object in the directory
* @param file pointer to file object.
* @param fileinfo pointer to the readed FileInfo, may be NULL
* @param name pointer to name buffer, may be NULL
* @param name_length name buffer length
* @return success flag (if the next object does not exist, it also returns false and sets the file error id to FSE_NOT_EXIST)
*/
bool storage_dir_read(File* file, FileInfo* fileinfo, char* name, uint16_t name_length);
/** Rewinds the read pointer to first item in the directory
* @param file pointer to file object.
* @return bool success flag
*/
bool storage_dir_rewind(File* file);
/******************* Common Functions *******************/
/** Retrieves information about a file/directory
* @param app pointer to the api
* @param path path to file/directory
* @param fileinfo pointer to the readed FileInfo, may be NULL
* @return FS_Error operation result
*/
FS_Error storage_common_stat(Storage* storage, const char* path, FileInfo* fileinfo);
/** Removes a file/directory from the repository, the directory must be empty and the file/directory must not be open
* @param app pointer to the api
* @param path
* @return FS_Error operation result
*/
FS_Error storage_common_remove(Storage* storage, const char* path);
/** Renames file/directory, file/directory must not be open
* @param app pointer to the api
* @param old_path old path
* @param new_path new path
* @return FS_Error operation result
*/
FS_Error storage_common_rename(Storage* storage, const char* old_path, const char* new_path);
/** Copy file, file must not be open
* @param app pointer to the api
* @param old_path old path
* @param new_path new path
* @return FS_Error operation result
*/
FS_Error storage_common_copy(Storage* storage, const char* old_path, const char* new_path);
/** Creates a directory
* @param app pointer to the api
* @param path directory path
* @return FS_Error operation result
*/
FS_Error storage_common_mkdir(Storage* storage, const char* path);
/** Gets general information about the storage
* @param app pointer to the api
* @param fs_path the path to the storage of interest
* @param total_space pointer to total space record, will be filled
* @param free_space pointer to free space record, will be filled
* @return FS_Error operation result
*/
FS_Error storage_common_fs_info(
Storage* storage,
const char* fs_path,
uint64_t* total_space,
uint64_t* free_space);
/******************* Error Functions *******************/
/** Retrieves the error text from the error id
* @param error_id error id
* @return const char* error text
*/
const char* storage_error_get_desc(FS_Error error_id);
/** Retrieves the error id from the file object
* @param file pointer to file object. Pointer must not point to NULL. YOU CANNOT RETREIVE THE ERROR ID IF THE FILE HAS BEEN CLOSED
* @return FS_Error error id
*/
FS_Error storage_file_get_error(File* file);
/** Retrieves the error text from the file object
* @param file pointer to file object. Pointer must not point to NULL. YOU CANNOT RETREIVE THE ERROR TEXT IF THE FILE HAS BEEN CLOSED
* @return const char* error text
*/
const char* storage_file_get_error_desc(File* file);
/******************* SD Card Functions *******************/
/** Formats SD Card
* @param api pointer to the api
* @return FS_Error operation result
*/
FS_Error storage_sd_format(Storage* api);
/** Will unmount the SD card
* @param api pointer to the api
* @return FS_Error operation result
*/
FS_Error storage_sd_unmount(Storage* api);
/** Retrieves SD card information
* @param api pointer to the api
* @param info pointer to the info
* @return FS_Error operation result
*/
FS_Error storage_sd_info(Storage* api, SDInfo* info);
/** Retrieves SD card status
* @param api pointer to the api
* @return FS_Error operation result
*/
FS_Error storage_sd_status(Storage* api);
#ifdef __cplusplus
}
#endif