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https://github.com/DarkFlippers/unleashed-firmware.git
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389ff92cc1
* Makefile, Scripts: new linter * About: remove ID from IC * Firmware: remove double define for DIVC/DIVR * Scripts: check folder names too. Docker: replace syntax check with make lint. * Reformat Sources and Migrate to new file naming convention * Docker: symlink clang-format-12 to clang-format * Add coding style guide
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
#include "saved_struct.h"
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#include <furi.h>
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#include <stdint.h>
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#include <storage/storage.h>
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#define TAG "SavedStruct"
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typedef struct {
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uint8_t magic;
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uint8_t version;
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uint8_t checksum;
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uint8_t flags;
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uint32_t timestamp;
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} SavedStructHeader;
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bool saved_struct_save(const char* path, void* data, size_t size, uint8_t magic, uint8_t version) {
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furi_assert(path);
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furi_assert(data);
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furi_assert(size);
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SavedStructHeader header;
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FURI_LOG_I(TAG, "Saving \"%s\"", path);
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// Store
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Storage* storage = furi_record_open("storage");
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File* file = storage_file_alloc(storage);
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bool result = true;
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bool saved = storage_file_open(file, path, FSAM_WRITE, FSOM_CREATE_ALWAYS);
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if(!saved) {
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FURI_LOG_E(
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TAG, "Open failed \"%s\". Error: \'%s\'", path, storage_file_get_error_desc(file));
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result = false;
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}
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if(result) {
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// Calculate checksum
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uint8_t checksum = 0;
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uint8_t* source = data;
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for(size_t i = 0; i < size; i++) {
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checksum += source[i];
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}
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// Set header
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header.magic = magic;
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header.version = version;
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header.checksum = checksum;
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header.flags = 0;
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header.timestamp = 0;
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uint16_t bytes_count = storage_file_write(file, &header, sizeof(header));
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bytes_count += storage_file_write(file, data, size);
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if(bytes_count != (size + sizeof(header))) {
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FURI_LOG_E(
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TAG, "Write failed \"%s\". Error: \'%s\'", path, storage_file_get_error_desc(file));
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result = false;
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}
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}
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storage_file_close(file);
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storage_file_free(file);
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furi_record_close("storage");
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return result;
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}
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bool saved_struct_load(const char* path, void* data, size_t size, uint8_t magic, uint8_t version) {
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FURI_LOG_I(TAG, "Loading \"%s\"", path);
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SavedStructHeader header;
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uint8_t* data_read = furi_alloc(size);
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Storage* storage = furi_record_open("storage");
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File* file = storage_file_alloc(storage);
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bool result = true;
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bool loaded = storage_file_open(file, path, FSAM_READ, FSOM_OPEN_EXISTING);
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if(!loaded) {
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FURI_LOG_E(
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TAG, "Failed to read \"%s\". Error: %s", path, storage_file_get_error_desc(file));
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result = false;
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}
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if(result) {
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uint16_t bytes_count = storage_file_read(file, &header, sizeof(SavedStructHeader));
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bytes_count += storage_file_read(file, data_read, size);
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if(bytes_count != (sizeof(SavedStructHeader) + size)) {
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FURI_LOG_E(TAG, "Size mismatch of file \"%s\"", path);
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result = false;
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}
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}
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if(result && (header.magic != magic || header.version != version)) {
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FURI_LOG_E(
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TAG,
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"Magic(%d != %d) or Version(%d != %d) mismatch of file \"%s\"",
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header.magic,
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magic,
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header.version,
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version,
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path);
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result = false;
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}
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if(result) {
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uint8_t checksum = 0;
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const uint8_t* source = (const uint8_t*)data_read;
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for(size_t i = 0; i < size; i++) {
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checksum += source[i];
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}
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if(header.checksum != checksum) {
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FURI_LOG_E(
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TAG, "Checksum(%d != %d) mismatch of file \"%s\"", header.checksum, checksum, path);
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result = false;
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}
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}
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if(result) {
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memcpy(data, data_read, size);
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}
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storage_file_close(file);
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storage_file_free(file);
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furi_record_close("storage");
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free(data_read);
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return result;
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}
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