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Code Issues Releases Wiki Activity

Voilà comment gérer ses threads comme un boss

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This commit is contained in:
Antoine Bartuccio
2018-06-22 02:50:04 +02:00
parent cf27667313
commit e2beb598a9
10 changed files with 80 additions and 29 deletions
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38
SharedData/SharedData.c
View File

@ -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++)
pthread_join(this->threads[i], NULL);
for (i=0; i<this->threads_nb; i++) {
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++) {
printf("Quitting thread %d\n", (int) this->threads[i]);
pthread_kill(this->threads[i], SIGUSR1);
if (this->threads[i] != NULL) {
printf("Quitting thread %d\n", (int) this->threads[i]);
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;

4
SharedData/SharedData.h
View File

@ -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;