Voilà comment gérer ses threads comme un boss

Elevator/Elevator.c

@@ -12,6 +12,7 @@ SYNCHRONIZED_GETTER(Elevator, ELEVATOR_STATE, state)
 SYNCHRONIZED_SETTER(Elevator, ELEVATOR_STATE, state)
 SYNCHRONIZED_GETTER(Elevator, int, floor)
 SYNCHRONIZED_SETTER(Elevator, int, floor)
+SETTER(Elevator, int, thread_number);
 
 void _free__Elevator(THIS(Elevator)){
 	DELETE(this->passengers);
@@ -167,6 +168,7 @@ void *runnable_Elevator(void * void_this){
 			printf("Ascenseur %s :  Je suis en route vers l'étage %d\n", this->name, this->target_floor);
 		}
 	}
+	data->unregister_thread(data, this->thread_number);
 
 	return NULL;
 }
@@ -176,6 +178,8 @@ Elevator *_init_Elevator(char * name){
 	new_elevator->name = strdup(name);
 	new_elevator->passengers = NEW(List);
 	new_elevator->target_floor = 0;
+	new_elevator->thread_number = -1;
+
 	pthread_mutex_init(&new_elevator->mutex_passengers, NULL);
 	pthread_mutex_init(&new_elevator->mutex_state, NULL);
 	pthread_mutex_init(&new_elevator->mutex_floor, NULL);
@@ -191,7 +195,8 @@ Elevator *_init_Elevator(char * name){
 			 set_state,
 			 get_floor,
 			 set_floor,
-		 repair
+			 repair,
+			 set_thread_number
 	);
 
 	new_elevator->set_floor(new_elevator, 0);

Elevator/Elevator.h

@@ -21,11 +21,13 @@ typedef struct o_Elevator {
 	PRIVATE char * name;
 	PRIVATE int floor;
 	PRIVATE int target_floor;
+	PRIVATE int thread_number;
 	PRIVATE pthread_mutex_t mutex_passengers;
 	PRIVATE pthread_mutex_t mutex_state;
 	PRIVATE pthread_mutex_t mutex_floor;
 
 	PUBLIC void * (*runnable)(void * void_this);
+	PUBLIC void (*set_thread_number)(_THIS(Elevator), int data);
 
 	SYNCHRONIZE PRIVATE void (*set_state)(_THIS(Elevator), ELEVATOR_STATE var);
 	SYNCHRONIZE PRIVATE void (*set_floor)(_THIS(Elevator), int var);

Passenger/Passenger.c

@@ -42,6 +42,13 @@ void *runnable_Passenger(void * void_this){
 	return NULL;
 }
 
+void set_thread_number_Passenger(THIS(Passenger), int thread_number){
+	if (this->type == RESIDENT)
+		this->resident->set_thread_number(this->resident, thread_number);
+	if (this->type == VISITOR)
+		this->visitor->set_thread_number(this->visitor, thread_number);
+}
+
 void _free__Passenger(THIS(Passenger)){
 	free(this);
 }

Passenger/Passenger.h

@@ -23,6 +23,7 @@ typedef struct o_Passenger {
 	PUBLIC int (*get_destination)(_THIS(Passenger));
 	PUBLIC void * (*runnable)(void* void_this);
 	PUBLIC int (*compare)(void * passenger1, void * passenger2);//yeah I know, but i needed int (*) (void*, void*)
+	PUBLIC void (*set_thread_number)(_THIS(Passenger), int thread_number);
 
 	DESTRUCTOR(Passenger);
 } Passenger;

Resident/Resident.c

@@ -11,6 +11,7 @@ GETTER(Resident, char *, name);
 GETTER(Resident, int, destination);
 GETTER(Resident, int, id);
 GETTER(Resident, int, apartment_floor);
+SETTER(Resident, int, thread_number);
 
 void * runnable_Resident(void * void_this){
 	Resident * this = (Resident*) void_this;
@@ -30,6 +31,7 @@ void * runnable_Resident(void * void_this){
 	else
 		data->main_building->go_to_floor(data->main_building, this->position, this->destination, passenger);
 	data->decrement_active_passengers(data);
+	data->unregister_thread(data, this->thread_number);
 	return NULL;
 }
 
@@ -50,13 +52,15 @@ Resident *_init_Resident(int id, char* name, int apartment_floor, int destinatio
 	new_resident->position = new_resident->apartment_floor;
 	new_resident->destination = destination;
 	new_resident->passenger = NULL;
+	new_resident->thread_number = -1;
 
 	LINK_ALL(Resident, new_resident,
 			 get_name,
 			 get_destination,
 			 get_id,
 			 runnable,
-		 get_apartment_floor
+			 get_apartment_floor,
+			 set_thread_number
 	)
 
 	return new_resident;

Resident/Resident.h

@@ -9,6 +9,7 @@
 
 typedef struct o_Resident {
 	PRIVATE int id;
+	PRIVATE int thread_number;
 	PRIVATE int apartment_floor;
 	PRIVATE int destination;
 	PRIVATE int position;
@@ -20,6 +21,7 @@ typedef struct o_Resident {
 	PUBLIC int (*get_id)(_THIS(Resident));
 	PUBLIC int (*get_apartment_floor)(_THIS(Resident));
 	PUBLIC int (*get_destination)(_THIS(Resident));
+	PUBLIC void (*set_thread_number)(_THIS(Resident), int data);
 
 	DESTRUCTOR(Resident);
 } Resident;

SharedData/SharedData.c

@@ -22,7 +22,7 @@ int call_elevator_SharedData(THIS(SharedData), int starting_floor, int destinati
 	return 0;
 }
 void start_thread_SharedData(THIS(SharedData), void * (*thread)(void *), void * data, int thread_number){
-	pthread_create(&this->threads[thread_number], 0, thread, data);
+	pthread_create(this->threads[thread_number], 0, thread, data);
 }
 
 void start_all_threads_SharedData(THIS(SharedData)){
@@ -39,18 +39,25 @@ void start_all_threads_SharedData(THIS(SharedData)){
 			residents = this->main_building->residents;
 			visitors = this->main_building->visitors;
 			this->threads_nb = residents->get_size(residents) + visitors->get_size(visitors) + ELEVATOR_NB;
-			this->threads = malloc_or_die(sizeof(pthread_t) * this->threads_nb);
+			this->threads = malloc_or_die(sizeof(pthread_t*) * this->threads_nb);
+
+			for (i=0; i < this->threads_nb; i++)
+				this->threads[i] = malloc_or_die(sizeof(pthread_t));
 
 			pthread_mutex_lock(&this->mutex_active_passengers);
+			pthread_mutex_lock(&this->mutex_threads);
 			/* starts threading elevators */
-			for (i=0; i<ELEVATOR_NB; i++)
+			for (i=0; i<ELEVATOR_NB; i++) {
 				this->start_thread(this, this->main_building->elevators[i]->runnable,
 								   this->main_building->elevators[i], i);
+				this->main_building->elevators[i]->set_thread_number(this->main_building->elevators[i], i);
+			}
 
 			/* starts threading visitors */
 			current = visitors->get_head(visitors);
 			while (current != NULL){
 				this->start_thread(this, ((Visitor*)current->get_data(current))->runnable, current->get_data(current), i);
+				((Visitor*)current->get_data(current))->set_thread_number((Visitor*)current->get_data(current), i);
 				current = current->get_next(current);
 				this->active_passengers++;
 				i++;
@@ -60,10 +67,12 @@ void start_all_threads_SharedData(THIS(SharedData)){
 			current = residents->get_head(residents);
 			while (current != NULL){
 				this->start_thread(this, ((Resident*)current->get_data(current))->runnable, current->get_data(current), i);
+				((Resident*)current->get_data(current))->set_thread_number((Resident*)current->get_data(current), i);
 				current = current->get_next(current);
 				this->active_passengers++;
 				i++;
 			}
+			pthread_mutex_unlock(&this->mutex_threads);
 			pthread_mutex_unlock(&this->mutex_active_passengers);
 		}
 	}
@@ -71,8 +80,10 @@ void start_all_threads_SharedData(THIS(SharedData)){
 
 void wait_all_threads_SharedData(THIS(SharedData)){
 	int i;
-	for (i=0; i<this->threads_nb; i++)
+	for (i=0; i<this->threads_nb; i++) {
-		pthread_join(this->threads[i], NULL);
+		if (this->threads[i] != NULL)
+			pthread_join(*this->threads[i], NULL);
+	}
 }
 
 int use_call_box_SharedData(THIS(SharedData), char * resident_name){
@@ -83,8 +94,11 @@ void _free__SharedData(THIS(SharedData)){
 	int i;
 	if (this->threads != NULL){
 		for (i=0; i<this->threads_nb; i++) {
+			if (this->threads[i] != NULL) {
 				printf("Quitting thread %d\n", (int) this->threads[i]);
-			pthread_kill(this->threads[i], SIGUSR1);
+				pthread_kill(*this->threads[i], SIGUSR1);
+			}
+			free(this->threads[i]);
 		}
 		free(this->threads);
 	}
@@ -111,6 +125,12 @@ void decrement_active_passengers_SharedData(THIS(SharedData)){
 	pthread_mutex_unlock(&this->mutex_active_passengers);
 }
 
+void unregister_thread_SharedData(THIS(SharedData), int thread_number){
+	pthread_mutex_lock(&this->mutex_threads);
+	this->threads[thread_number] = NULL;
+	pthread_mutex_unlock(&this->mutex_threads);
+}
+
 SharedData *_get_instance_SharedData(){
 	static SharedData * new_shared_data = NULL;
 	if (new_shared_data == NULL){
@@ -122,6 +142,7 @@ SharedData *_get_instance_SharedData(){
 		new_shared_data->active_passengers = 0;
 
 		pthread_mutex_init(&new_shared_data->mutex_active_passengers, NULL);
+		pthread_mutex_init(&new_shared_data->mutex_threads, NULL);
 
 		LINK_ALL(SharedData, new_shared_data,
 				 start_thread,
@@ -132,7 +153,8 @@ SharedData *_get_instance_SharedData(){
 				 use_call_box,
 				 call_elevator,
 				 decrement_active_passengers,
-				 is_active_passengers_left
+				 is_active_passengers_left,
+				 unregister_thread
 		);
 	}
 	return new_shared_data;

SharedData/SharedData.h

@@ -12,9 +12,10 @@
 typedef struct o_SharedData {
 	PRIVATE int threads_nb;
 	PRIVATE int active_passengers;
-	PRIVATE pthread_t *threads;
+	PRIVATE pthread_t ** threads;
 	PRIVATE Building * main_building;
 	PRIVATE pthread_mutex_t mutex_active_passengers;
+	PRIVATE pthread_mutex_t mutex_threads;
 
 	PRIVATE void (*start_thread)(_THIS(SharedData), void * (*thread)(void *), void * data, int thread_number);
 
@@ -26,6 +27,7 @@ typedef struct o_SharedData {
 	PUBLIC int (*use_call_box)(_THIS(SharedData), char * resident_name);
 	SYNCHRONIZE PUBLIC void (*decrement_active_passengers)(_THIS(SharedData));
 	SYNCHRONIZE PUBLIC int (*is_active_passengers_left)(_THIS(SharedData));
+	SYNCHRONIZE PUBLIC void (*unregister_thread)(_THIS(SharedData), int thread_number);
 
 	DESTRUCTOR(SharedData);
 } SharedData;

Visitor/Visitor.c

@@ -9,6 +9,7 @@
 GETTER(Visitor, char*, name);
 GETTER(Visitor, int, destination);
 GETTER(Visitor, int, id);
+SETTER(Visitor, int, thread_number);
 
 void * runnable_Visitor(void * void_this){
 	Visitor *this = (Visitor*) void_this;
@@ -24,6 +25,7 @@ void * runnable_Visitor(void * void_this){
 	printf("Visiteur %s : J'apelle à l'interphone\nVisiteur %s : J'apprends que %s habite à l'étage %d\n", this->name, this->name, this->contact_name, (this->destination = data->use_call_box(data, this->contact_name)));
 	data->main_building->go_to_floor(data->main_building, this->position, this->destination, passenger);
 	data->decrement_active_passengers(data);
+	data->unregister_thread(data, this->thread_number);
 	return NULL;
 }
 
@@ -44,6 +46,7 @@ Visitor *_init_Visitor(int id, char* name, char * contact_name){
 	new_visitor->position = 0;
 	new_visitor->destination = -1;
 	new_visitor->passenger = NULL;
+	new_visitor->thread_number = -1;
 
 	if (contact_name != NULL)
 		new_visitor->contact_name = strdup(contact_name);
@@ -54,7 +57,8 @@ Visitor *_init_Visitor(int id, char* name, char * contact_name){
 			 get_name,
 			 get_destination,
 			 get_id,
-		 runnable
+			 runnable,
+			 set_thread_number
 	);
 
 	return new_visitor;

Visitor/Visitor.h

@@ -9,6 +9,7 @@
 
 typedef struct o_Visitor {
 	PRIVATE int id;
+	PRIVATE int thread_number;
 	PRIVATE char * name;
 	PRIVATE char * contact_name;
 	PRIVATE int position;
@@ -19,6 +20,7 @@ typedef struct o_Visitor {
 	PUBLIC char * (*get_name)(_THIS(Visitor));
 	PUBLIC int (*get_id)(_THIS(Visitor));
 	PUBLIC int (*get_destination)(_THIS(Visitor));
+	PUBLIC void (*set_thread_number)(_THIS(Visitor), int data);
 
 	DESTRUCTOR(Visitor);
 } Visitor;