/*
unload an 'on demand loaded' room
Sometimes, the find_Room() functions load a room on demand
This is cool, but there are cases in which the loaded room
needs to be destroyed again -- this is done by unload_Room()
*/
void unload_Room(Room *r) {
if (r == NULL)
return;
if (r->number == HOME_ROOM && count_Queue(r->inside) <= 0) { /* demand loaded Home room */
(void)remove_Room(&HomeRooms, r);
if (save_Room(r))
log_err("unload_Room(): failed to save room #%u %s", r->number, r->name);
destroy_Room(r);
return;
}
if (r->number == MAIL_ROOM) { /* demand loaded Mail> room */
Room *h;
/*
Note: mail rooms are usually stored in the user as usr->mail
However, if the user was not online, it was put on the HomeRooms list
so if we can find it there, it should be unloaded
if we can't find it there, the room should not be unloaded
This procedure is more efficient than scanning all users for "(usr->mail == r)"
because the HomeRooms list is usually very short or empty
*/
for(h = HomeRooms; h != NULL; h = h->next) {
if (h == r) {
(void)remove_Room(&HomeRooms, r);
if (save_Room(r))
log_err("unload_Room(): failed to save HomeRoom #%u %s", r->number, r->name);
destroy_Room(r);
return;
}
/*
do some house-cleaning
Note: due the 'return' statement just above, we may not complete the
house-cleaning work...
*/
if (count_Queue(h->inside) <= 0) {
(void)remove_Room(&HomeRooms, r);
if (save_Room(r))
log_err("unload_Room(): failed to save room #%u %s", r->number, r->name);
destroy_Room(r);
}
}
}
}
int main(void) {
char* topic1 = "Hello";
int time1 = 10;
int room1 = 1001;
struct Meeting* Meeting1 = create_Meeting(time1, topic1);
struct Room* Room1 = create_Room(room1);
printf("%d\n", add_Room_Meeting(Room1, Meeting1)); // 0
printf("%d\n", add_Room_Meeting(Room1, Meeting1)); // -1
print_Meeting(find_Room_Meeting(Room1, time1));
printf("%d\n", remove_Room_Meeting(Room1, Meeting1)); // 0
printf("%d\n", remove_Room_Meeting(Room1, Meeting1)); // -1
printf("%d\n", add_Room_Meeting(Room1, Meeting1)); // 0
clear_Room(Room1);
print_Room(Room1);
const char *topicA = "Whisky", *topicB = "Tango";
const char *firstname1 = "Bo", *lastname1 = "Jackson", *phoneno1 = "123";
const char *firstname2 = "Mike", *lastname2 = "David", *phoneno2 = "456";
struct Person* person1 = create_Person(firstname1, lastname1, phoneno1);
struct Person* person2 = create_Person(firstname2, lastname2, phoneno2);
struct Meeting *new_Meeting1 = create_Meeting(10, topicA);
struct Meeting *new_Meeting2 = create_Meeting(9, topicB);
struct Ordered_container* people = OC_create_container((OC_comp_fp_t) compare_Person_lastname);
OC_insert(people, person1);
OC_insert(people, person2);
struct Room* room2 = create_Room(1000);
add_Meeting_participant(new_Meeting1, person1);
add_Meeting_participant(new_Meeting1, person2);
add_Room_Meeting(room2, new_Meeting1);
add_Room_Meeting(room2, new_Meeting2);
printf("\n...saveload/file...\n");
FILE *fp = fopen("Room_savefile.txt", "w");
save_Room(room2, fp);
fclose(fp);
fp = fopen("Room_savefile.txt", "r");
struct Room *new_Room = load_Room(fp, people);
print_Room(new_Room);
fclose(fp);
}
