unleashed-firmware/lib/flipper_format/flipper_format.h
hedger ee36c66572
fbt: doxygen target (#3510)
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Co-authored-by: あく <alleteam@gmail.com>
2024-03-21 01:32:53 +09:00

754 lines
22 KiB
C

/** @file flipper_format.h Flipper File Format helper library.
*
* Flipper File Format is a fairly simple format for storing data in a file.
*
* Flipper file structure:
*
* ~~~~~~~~~~~~~~~~~~~~~
* # Commentary
* Field name: field value
* ~~~~~~~~~~~~~~~~~~~~~
*
* Lines starting with the # character are ignored (considered as comments). The
* separator between the name of the value and the value itself is the string
* ": ".
*
* Currently supported types:
*
* ~~~~~~~~~~~~~~~~~~~~~
* String: text
* Int32: 1 2 -3 4
* Uint32: 1 2 3 4
* Float: 1.0 1234.654
* Hex: A4 B3 C2 D1 12 FF
* ~~~~~~~~~~~~~~~~~~~~~
*
* End of line is LF when writing, but CR is supported when reading.
*
* The library is designed in such a way that comments and field values are
* completely ignored when searching for keys, that is, they do not consume
* memory.
*
* File example:
*
* ~~~~~~~~~~~~~~~~~~~~~
* Filetype: Flipper Test File
* Version: 1
* # Just test file
* String: String value
* UINT: 1234
* Hex: 00 01 FF A3
* ~~~~~~~~~~~~~~~~~~~~~
*
* Writing:
*
* ~~~~~~~~~~~~~~~~~~~~~
* FlipperFormat* format = flipper_format_file_alloc(storage);
*
* do { const uint32_t version = 1; const char* string_value = "String value";
* const uint32_t uint32_value = 1234; const uint16_t array_size = 4; const
* uint8_t* array[array_size] = {0x00, 0x01, 0xFF, 0xA3};
*
* if(!flipper_format_file_open_new(format, EXT_PATH("flipper_format_test")))
* break; if(!flipper_format_write_header_cstr(format, "Flipper Test File",
* version)) break; if(!flipper_format_write_comment_cstr(format,
* "Just test file")) break; if(!flipper_format_write_string_cstr(format,
* "String", string_value)) break; if(!flipper_format_write_uint32(format,
* "UINT", &uint32_value, 1)) break; if(!flipper_format_write_hex(format,
* "Hex Array", array, array_size)) break;
*
* // signal that the file was written successfully } while(0);
*
* flipper_format_free(file);
* ~~~~~~~~~~~~~~~~~~~~~
*
* Reading:
*
* ~~~~~~~~~~~~~~~~~~~~~
* FlipperFormat* file = flipper_format_file_alloc(storage);
*
* do { uint32_t version = 1; FuriString* file_type; FuriString* string_value;
* uint32_t uint32_value = 1; uint16_t array_size = 4; uint8_t*
* array[array_size] = {0}; file_type = furi_string_alloc(); string_value =
* furi_string_alloc();
*
* if(!flipper_format_file_open_existing(file, EXT_PATH("flipper_format_test")))
* break; if(!flipper_format_read_header(file, file_type, &version)) break;
* if(!flipper_format_read_string(file, "String", string_value)) break;
* if(!flipper_format_read_uint32(file, "UINT", &uint32_value, 1)) break;
* if(!flipper_format_read_hex(file, "Hex Array", array, array_size)) break;
*
* // signal that the file was read successfully } while(0);
*
* flipper_format_free(file);
* ~~~~~~~~~~~~~~~~~~~~~
*/
#pragma once
#include <stdint.h>
#include <storage/storage.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct FlipperFormat FlipperFormat;
/** Allocate FlipperFormat as string.
*
* @return FlipperFormat* pointer to a FlipperFormat instance
*/
FlipperFormat* flipper_format_string_alloc(void);
/** Allocate FlipperFormat as file.
*
* @param storage The storage
*
* @return FlipperFormat* pointer to a FlipperFormat instance
*/
FlipperFormat* flipper_format_file_alloc(Storage* storage);
/** Allocate FlipperFormat as file, buffered mode.
*
* @param storage The storage
*
* @return FlipperFormat* pointer to a FlipperFormat instance
*/
FlipperFormat* flipper_format_buffered_file_alloc(Storage* storage);
/** Open existing file. Use only if FlipperFormat allocated as a file.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param path File path
*
* @return True on success
*/
bool flipper_format_file_open_existing(FlipperFormat* flipper_format, const char* path);
/** Open existing file, buffered mode. Use only if FlipperFormat allocated as a
* buffered file.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param path File path
*
* @return True on success
*/
bool flipper_format_buffered_file_open_existing(FlipperFormat* flipper_format, const char* path);
/** Open existing file for writing and add values to the end of file. Use only if
* FlipperFormat allocated as a file.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param path File path
*
* @return True on success
*/
bool flipper_format_file_open_append(FlipperFormat* flipper_format, const char* path);
/** Open file. Creates a new file, or deletes the contents of the file if it
* already exists. Use only if FlipperFormat allocated as a file.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param path File path
*
* @return True on success
*/
bool flipper_format_file_open_always(FlipperFormat* flipper_format, const char* path);
/** Open file. Creates a new file, or deletes the contents of the file if it
* already exists, buffered mode. Use only if FlipperFormat allocated as a
* buffered file.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param path File path
*
* @return True on success
*/
bool flipper_format_buffered_file_open_always(FlipperFormat* flipper_format, const char* path);
/** Open file. Creates a new file, fails if file already exists. Use only if
* FlipperFormat allocated as a file.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param path File path
*
* @return True on success
*/
bool flipper_format_file_open_new(FlipperFormat* flipper_format, const char* path);
/** Closes the file, use only if FlipperFormat allocated as a file.
*
* @param flipper_format The flipper format
*
* @return true
* @return false
*/
bool flipper_format_file_close(FlipperFormat* flipper_format);
/** Closes the file, use only if FlipperFormat allocated as a buffered file.
*
* @param flipper_format The flipper format
*
* @return true
* @return false
*/
bool flipper_format_buffered_file_close(FlipperFormat* flipper_format);
/** Free FlipperFormat.
*
* @param flipper_format Pointer to a FlipperFormat instance
*/
void flipper_format_free(FlipperFormat* flipper_format);
/** Set FlipperFormat mode.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param strict_mode True obligates not to skip valid fields. False by
* default.
*/
void flipper_format_set_strict_mode(FlipperFormat* flipper_format, bool strict_mode);
/** Rewind the RW pointer.
*
* @param flipper_format Pointer to a FlipperFormat instance
*
* @return True on success
*/
bool flipper_format_rewind(FlipperFormat* flipper_format);
/** Move the RW pointer at the end. Can be useful if you want to add some data
* after reading.
*
* @param flipper_format Pointer to a FlipperFormat instance
*
* @return True on success
*/
bool flipper_format_seek_to_end(FlipperFormat* flipper_format);
/** Check if the key exists.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
*
* @return true key exists
* @return false key is not exists
*/
bool flipper_format_key_exist(FlipperFormat* flipper_format, const char* key);
/** Read the header (file type and version).
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param filetype File type string
* @param version Version Value
*
* @return True on success
*/
bool flipper_format_read_header(
FlipperFormat* flipper_format,
FuriString* filetype,
uint32_t* version);
/** Write the header (file type and version).
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param filetype File type string
* @param version Version Value
*
* @return True on success
*/
bool flipper_format_write_header(
FlipperFormat* flipper_format,
FuriString* filetype,
const uint32_t version);
/** Write the header (file type and version). Plain C string version.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param filetype File type string
* @param version Version Value
*
* @return True on success
*/
bool flipper_format_write_header_cstr(
FlipperFormat* flipper_format,
const char* filetype,
const uint32_t version);
/** Get the count of values by key
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key The key
* @param count The count
*
* @return bool
*/
bool flipper_format_get_value_count(
FlipperFormat* flipper_format,
const char* key,
uint32_t* count);
/** Read a string by key
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
*
* @return True on success
*/
bool flipper_format_read_string(FlipperFormat* flipper_format, const char* key, FuriString* data);
/** Write key and string
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
*
* @return True on success
*/
bool flipper_format_write_string(FlipperFormat* flipper_format, const char* key, FuriString* data);
/** Write key and string. Plain C string version.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
*
* @return True on success
*/
bool flipper_format_write_string_cstr(
FlipperFormat* flipper_format,
const char* key,
const char* data);
/** Read array of uint64 in hex format by key
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_read_hex_uint64(
FlipperFormat* flipper_format,
const char* key,
uint64_t* data,
const uint16_t data_size);
/** Write key and array of uint64 in hex format
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_write_hex_uint64(
FlipperFormat* flipper_format,
const char* key,
const uint64_t* data,
const uint16_t data_size);
/** Read array of uint32 by key
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_read_uint32(
FlipperFormat* flipper_format,
const char* key,
uint32_t* data,
const uint16_t data_size);
/** Write key and array of uint32
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_write_uint32(
FlipperFormat* flipper_format,
const char* key,
const uint32_t* data,
const uint16_t data_size);
/** Read array of int32 by key
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_read_int32(
FlipperFormat* flipper_format,
const char* key,
int32_t* data,
const uint16_t data_size);
/** Write key and array of int32
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_write_int32(
FlipperFormat* flipper_format,
const char* key,
const int32_t* data,
const uint16_t data_size);
/** Read array of bool by key
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_read_bool(
FlipperFormat* flipper_format,
const char* key,
bool* data,
const uint16_t data_size);
/** Write key and array of bool
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_write_bool(
FlipperFormat* flipper_format,
const char* key,
const bool* data,
const uint16_t data_size);
/** Read array of float by key
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_read_float(
FlipperFormat* flipper_format,
const char* key,
float* data,
const uint16_t data_size);
/** Write key and array of float
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_write_float(
FlipperFormat* flipper_format,
const char* key,
const float* data,
const uint16_t data_size);
/** Read array of hex-formatted bytes by key
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_read_hex(
FlipperFormat* flipper_format,
const char* key,
uint8_t* data,
const uint16_t data_size);
/** Write key and array of hex-formatted bytes
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param data_size Values count
*
* @return True on success
*/
bool flipper_format_write_hex(
FlipperFormat* flipper_format,
const char* key,
const uint8_t* data,
const uint16_t data_size);
/** Write comment
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param data Comment text
*
* @return True on success
*/
bool flipper_format_write_comment(FlipperFormat* flipper_format, FuriString* data);
/** Write comment. Plain C string version.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param data Comment text
*
* @return True on success
*/
bool flipper_format_write_comment_cstr(FlipperFormat* flipper_format, const char* data);
/** Removes the first matching key and its value. Sets the RW pointer to a
* position of deleted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
*
* @return True on success
*/
bool flipper_format_delete_key(FlipperFormat* flipper_format, const char* key);
/** Updates the value of the first matching key to a string value. Sets the RW
* pointer to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
*
* @return True on success
*/
bool flipper_format_update_string(FlipperFormat* flipper_format, const char* key, FuriString* data);
/** Updates the value of the first matching key to a string value. Plain C
* version. Sets the RW pointer to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
*
* @return True on success
*/
bool flipper_format_update_string_cstr(
FlipperFormat* flipper_format,
const char* key,
const char* data);
/** Updates the value of the first matching key to a uint32 array value. Sets the
* RW pointer to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_update_uint32(
FlipperFormat* flipper_format,
const char* key,
const uint32_t* data,
const uint16_t data_size);
/** Updates the value of the first matching key to a int32 array value. Sets the
* RW pointer to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_update_int32(
FlipperFormat* flipper_format,
const char* key,
const int32_t* data,
const uint16_t data_size);
/** Updates the value of the first matching key to a bool array value. Sets the
* RW pointer to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_update_bool(
FlipperFormat* flipper_format,
const char* key,
const bool* data,
const uint16_t data_size);
/** Updates the value of the first matching key to a float array value. Sets the
* RW pointer to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_update_float(
FlipperFormat* flipper_format,
const char* key,
const float* data,
const uint16_t data_size);
/** Updates the value of the first matching key to an array of hex-formatted
* bytes. Sets the RW pointer to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_update_hex(
FlipperFormat* flipper_format,
const char* key,
const uint8_t* data,
const uint16_t data_size);
/** Updates the value of the first matching key to a string value, or adds the
* key and value if the key did not exist. Sets the RW pointer to a position at
* the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
*
* @return True on success
*/
bool flipper_format_insert_or_update_string(
FlipperFormat* flipper_format,
const char* key,
FuriString* data);
/** Updates the value of the first matching key to a string value, or adds the
* key and value if the key did not exist. Plain C version. Sets the RW pointer
* to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
*
* @return True on success
*/
bool flipper_format_insert_or_update_string_cstr(
FlipperFormat* flipper_format,
const char* key,
const char* data);
/** Updates the value of the first matching key to a uint32 array value, or adds
* the key and value if the key did not exist. Sets the RW pointer to a position
* at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_insert_or_update_uint32(
FlipperFormat* flipper_format,
const char* key,
const uint32_t* data,
const uint16_t data_size);
/** Updates the value of the first matching key to a int32 array value, or adds
* the key and value if the key did not exist. Sets the RW pointer to a position
* at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_insert_or_update_int32(
FlipperFormat* flipper_format,
const char* key,
const int32_t* data,
const uint16_t data_size);
/** Updates the value of the first matching key to a bool array value, or adds
* the key and value if the key did not exist. Sets the RW pointer to a position
* at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_insert_or_update_bool(
FlipperFormat* flipper_format,
const char* key,
const bool* data,
const uint16_t data_size);
/** Updates the value of the first matching key to a float array value, or adds
* the key and value if the key did not exist. Sets the RW pointer to a position
* at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_insert_or_update_float(
FlipperFormat* flipper_format,
const char* key,
const float* data,
const uint16_t data_size);
/** Updates the value of the first matching key to an array of hex-formatted
* bytes, or adds the key and value if the key did not exist. Sets the RW
* pointer to a position at the end of inserted data.
*
* @param flipper_format Pointer to a FlipperFormat instance
* @param key Key
* @param data Value
* @param[in] data_size The data size
*
* @return True on success
*/
bool flipper_format_insert_or_update_hex(
FlipperFormat* flipper_format,
const char* key,
const uint8_t* data,
const uint16_t data_size);
#ifdef __cplusplus
}
#endif