e5a1f20fd4
* Storage: more unit tests * Storage: blocking dir open, differentiate file and dir when freed. Co-authored-by: あく <alleteam@gmail.com>
311 lines
9.4 KiB
C
311 lines
9.4 KiB
C
#pragma once
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#include <stdint.h>
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#include <m-string.h>
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#include "filesystem_api_defines.h"
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#include "storage_sd_api.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct Storage Storage;
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/** Allocates and initializes a file descriptor
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* @return File*
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*/
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File* storage_file_alloc(Storage* storage);
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/** Frees the file descriptor. Closes the file if it was open.
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*/
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void storage_file_free(File* file);
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typedef enum {
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StorageEventTypeCardMount,
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StorageEventTypeCardUnmount,
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StorageEventTypeCardMountError,
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StorageEventTypeFileClose,
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StorageEventTypeDirClose,
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} StorageEventType;
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typedef struct {
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StorageEventType type;
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} StorageEvent;
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/**
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* Get storage pubsub.
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* Storage will send StorageEvent messages.
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* @param storage
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* @return FuriPubSub*
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*/
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FuriPubSub* storage_get_pubsub(Storage* storage);
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/******************* File Functions *******************/
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/** Opens an existing file or create a new one.
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* @param file pointer to file object.
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* @param path path to file
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* @param access_mode access mode from FS_AccessMode
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* @param open_mode open mode from FS_OpenMode
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* @return success flag. You need to close the file even if the open operation failed.
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*/
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bool storage_file_open(
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File* file,
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const char* path,
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FS_AccessMode access_mode,
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FS_OpenMode open_mode);
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/** Close the file.
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* @param file pointer to a file object, the file object will be freed.
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* @return success flag
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*/
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bool storage_file_close(File* file);
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/** Tells if the file is open
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* @param file pointer to a file object
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* @return bool true if file is open
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*/
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bool storage_file_is_open(File* file);
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/** Tells if the file is a directory
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* @param file pointer to a file object
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* @return bool true if file is a directory
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*/
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bool storage_file_is_dir(File* file);
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/** Reads bytes from a file into a buffer
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* @param file pointer to file object.
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* @param buff pointer to a buffer, for reading
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* @param bytes_to_read how many bytes to read. Must be less than or equal to the size of the buffer.
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* @return uint16_t how many bytes were actually readed
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*/
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uint16_t storage_file_read(File* file, void* buff, uint16_t bytes_to_read);
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/** Writes bytes from a buffer to a file
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* @param file pointer to file object.
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* @param buff pointer to buffer, for writing
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* @param bytes_to_write how many bytes to write. Must be less than or equal to the size of the buffer.
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* @return uint16_t how many bytes were actually written
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*/
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uint16_t storage_file_write(File* file, const void* buff, uint16_t bytes_to_write);
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/** Moves the r/w pointer
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* @param file pointer to file object.
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* @param offset offset to move the r/w pointer
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* @param from_start set an offset from the start or from the current position
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* @return success flag
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*/
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bool storage_file_seek(File* file, uint32_t offset, bool from_start);
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/** Gets the position of the r/w pointer
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* @param file pointer to file object.
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* @return uint64_t position of the r/w pointer
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*/
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uint64_t storage_file_tell(File* file);
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/** Truncates the file size to the current position of the r/w pointer
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* @param file pointer to file object.
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* @return bool success flag
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*/
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bool storage_file_truncate(File* file);
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/** Gets the size of the file
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* @param file pointer to file object.
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* @return uint64_t size of the file
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*/
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uint64_t storage_file_size(File* file);
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/** Writes file cache to storage
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* @param file pointer to file object.
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* @return bool success flag
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*/
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bool storage_file_sync(File* file);
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/** Checks that the r/w pointer is at the end of the file
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* @param file pointer to file object.
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* @return bool success flag
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*/
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bool storage_file_eof(File* file);
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/******************* Dir Functions *******************/
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/** Opens a directory to get objects from it
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* @param app pointer to the api
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* @param file pointer to file object.
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* @param path path to directory
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* @return bool success flag. You need to close the directory even if the open operation failed.
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*/
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bool storage_dir_open(File* file, const char* path);
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/** Close the directory. Also free file handle structure and point it to the NULL.
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* @param file pointer to a file object.
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* @return bool success flag
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*/
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bool storage_dir_close(File* file);
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/** Reads the next object in the directory
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* @param file pointer to file object.
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* @param fileinfo pointer to the readed FileInfo, may be NULL
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* @param name pointer to name buffer, may be NULL
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* @param name_length name buffer length
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* @return success flag (if the next object does not exist, it also returns false and sets the file error id to FSE_NOT_EXIST)
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*/
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bool storage_dir_read(File* file, FileInfo* fileinfo, char* name, uint16_t name_length);
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/** Rewinds the read pointer to first item in the directory
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* @param file pointer to file object.
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* @return bool success flag
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*/
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bool storage_dir_rewind(File* file);
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/******************* Common Functions *******************/
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/** Retrieves information about a file/directory
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* @param app pointer to the api
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* @param path path to file/directory
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* @param fileinfo pointer to the readed FileInfo, may be NULL
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* @return FS_Error operation result
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*/
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FS_Error storage_common_stat(Storage* storage, const char* path, FileInfo* fileinfo);
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/** Removes a file/directory from the repository, the directory must be empty and the file/directory must not be open
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* @param app pointer to the api
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* @param path
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* @return FS_Error operation result
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*/
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FS_Error storage_common_remove(Storage* storage, const char* path);
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/** Renames file/directory, file/directory must not be open
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* @param app pointer to the api
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* @param old_path old path
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* @param new_path new path
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* @return FS_Error operation result
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*/
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FS_Error storage_common_rename(Storage* storage, const char* old_path, const char* new_path);
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/** Copy file, file must not be open
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* @param app pointer to the api
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* @param old_path old path
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* @param new_path new path
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* @return FS_Error operation result
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*/
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FS_Error storage_common_copy(Storage* storage, const char* old_path, const char* new_path);
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/** Creates a directory
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* @param app pointer to the api
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* @param path directory path
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* @return FS_Error operation result
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*/
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FS_Error storage_common_mkdir(Storage* storage, const char* path);
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/** Gets general information about the storage
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* @param app pointer to the api
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* @param fs_path the path to the storage of interest
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* @param total_space pointer to total space record, will be filled
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* @param free_space pointer to free space record, will be filled
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* @return FS_Error operation result
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*/
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FS_Error storage_common_fs_info(
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Storage* storage,
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const char* fs_path,
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uint64_t* total_space,
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uint64_t* free_space);
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/******************* Error Functions *******************/
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/** Retrieves the error text from the error id
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* @param error_id error id
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* @return const char* error text
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*/
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const char* storage_error_get_desc(FS_Error error_id);
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/** Retrieves the error id from the file object
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* @param file pointer to file object. Pointer must not point to NULL. YOU CANNOT RETREIVE THE ERROR ID IF THE FILE HAS BEEN CLOSED
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* @return FS_Error error id
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*/
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FS_Error storage_file_get_error(File* file);
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/** Retrieves the internal (storage-specific) error id from the file object
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* @param file pointer to file object. Pointer must not point to NULL. YOU CANNOT RETREIVE THE INTERNAL ERROR ID IF THE FILE HAS BEEN CLOSED
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* @return FS_Error error id
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*/
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int32_t storage_file_get_internal_error(File* file);
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/** Retrieves the error text from the file object
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* @param file pointer to file object. Pointer must not point to NULL. YOU CANNOT RETREIVE THE ERROR TEXT IF THE FILE HAS BEEN CLOSED
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* @return const char* error text
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*/
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const char* storage_file_get_error_desc(File* file);
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/******************* SD Card Functions *******************/
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/** Formats SD Card
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* @param api pointer to the api
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* @return FS_Error operation result
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*/
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FS_Error storage_sd_format(Storage* api);
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/** Will unmount the SD card
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* @param api pointer to the api
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* @return FS_Error operation result
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*/
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FS_Error storage_sd_unmount(Storage* api);
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/** Retrieves SD card information
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* @param api pointer to the api
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* @param info pointer to the info
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* @return FS_Error operation result
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*/
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FS_Error storage_sd_info(Storage* api, SDInfo* info);
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/** Retrieves SD card status
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* @param api pointer to the api
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* @return FS_Error operation result
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*/
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FS_Error storage_sd_status(Storage* api);
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/***************** Simplified Functions ******************/
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/**
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* Removes a file/directory from the repository, the directory must be empty and the file/directory must not be open
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* @param storage pointer to the api
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* @param path
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* @return true on success or if file/dir is not exist
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*/
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bool storage_simply_remove(Storage* storage, const char* path);
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/**
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* Removes a file/directory from the repository, the directory can be not empty
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* @param storage pointer to the api
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* @param path
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* @return true on success or if file/dir is not exist
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*/
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bool storage_simply_remove_recursive(Storage* storage, const char* path);
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/**
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* Creates a directory
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* @param storage
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* @param path
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* @return true on success or if directory is already exist
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*/
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bool storage_simply_mkdir(Storage* storage, const char* path);
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/**
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* @brief Get next free filename.
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*
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* @param storage
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* @param dirname
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* @param filename
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* @param fileextension
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* @param nextfilename return name
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*/
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void storage_get_next_filename(
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Storage* storage,
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const char* dirname,
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const char* filename,
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const char* fileextension,
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string_t nextfilename);
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#ifdef __cplusplus
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}
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#endif
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