user.c

#include "user.h"
#include <stdlib.h>
#include <string.h>


user *user_create(char *name)
{
	if (name == NULL) return NULL;

	size_t name_len = strlen(name) + 1;
	user *u = (user *)calloc(1, sizeof(user));
	if (u == NULL) {
		return NULL;
	}
	u->name = (char *)calloc(name_len, sizeof(char));
	if (u->name == NULL) {
		free(u);
		return NULL;
	}
	u->name = strncpy(u->name, name, name_len);
	u->objects = list_create(object_compare, object_destroy, object_dump);

	return u;
}

object *user_search_object(user *u, void *name)
{
	if (name == NULL) return NULL;

	return (object *)list_search_unsafe(u->objects, name);
}

list_result user_insert_object(user *u, char *name, size_t len)
{
	if (u == NULL) return list_null;

	object *obj = object_create(name, len);
	return list_insert_unsafe(u->objects, obj);
}

object *user_delete_object(user *u, void *name)
{
	if (u == NULL || name == NULL) {
		return NULL;
	}

	return list_delete_unsafe(u->objects, name);
}

int user_compare(void *usr, void *usr_name)
{
	user *u = (user *)usr;
	char *username = (char *)usr_name;

	if (u == NULL && username == NULL) return 0;
	if (u == NULL) return 1;
	if (username == NULL) return -1;

	return strcmp(u->name, username);
}

void user_dump(void *usr, FILE *f)
{
	if (usr == NULL) return;
	user *u = (user *)usr;

	if (u->name == NULL) {
		fprintf(f, "0\n");
	} else {
		fprintf(f, "%zu\n", strlen(u->name));
		fprintf(f, "%s\n", u->name);
	}

	if (u->objects == NULL) {
		fprintf(f, "0\n");
	} else {
		list_dump(u->objects, f);
	}
}

void user_destroy(void *usr)
{
	if (usr == NULL) return;
	user *u = (user *)usr;
	if (u->name != NULL) free(u->name);
	if (u->objects != NULL) list_destroy(u->objects);
	free(u);
}