58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
#include "todo.h"
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdbool.h>
|
|
#include <string.h>
|
|
|
|
// Memory management
|
|
void todo_free_item(TodoItem *item) { free(item->title); }
|
|
|
|
// Item operations
|
|
TodoItem todo_create_item(char *title) {
|
|
TodoItem item;
|
|
item.title_length = strlen(title);
|
|
item.title = malloc(item.title_length + 1);
|
|
strcpy(item.title, title);
|
|
item.completed = false;
|
|
|
|
return item;
|
|
}
|
|
|
|
void todo_mark_item(TodoItem *item, bool_t completed) {
|
|
item->completed = completed;
|
|
}
|
|
|
|
void todo_print_item(TodoItem *item) {
|
|
printf("%s - ", item->title);
|
|
if (item->completed) {
|
|
printf("Completed\n");
|
|
} else {
|
|
printf("Not Completed\n");
|
|
}
|
|
}
|
|
|
|
// Serialization
|
|
char *todo_item_serialize(TodoItem *item, int *buffer_size_out) {
|
|
// Layout of the serialized item:
|
|
// title_length - 1 byte
|
|
// title - title_length bytes
|
|
// completed - 1 byte
|
|
unsigned char title_length = item->title_length;
|
|
unsigned char completed_length = sizeof(item->completed);
|
|
int buffer_size = sizeof(unsigned char) + title_length + completed_length;
|
|
|
|
char *buffer = malloc(buffer_size);
|
|
|
|
// copy title length
|
|
memcpy(buffer, &title_length, sizeof(unsigned char));
|
|
// copy title
|
|
memcpy(buffer + sizeof(unsigned char), item->title, title_length);
|
|
// copy completed
|
|
memcpy(buffer + sizeof(unsigned char) + title_length, &item->completed,
|
|
completed_length);
|
|
|
|
*buffer_size_out = buffer_size;
|
|
|
|
return buffer;
|
|
}
|