void *thread1(void *a) {
long id = (long) a;
// printf("Thread n°%li execution \n", id);
fflush(stdout);
locks.lock(id);
assert(locks.getValue(id));
assert(locks.getValue((id-1+10)%10));
assert(locks.getValue((id+1)%10));
array[id] = id;
array[(id-1+10)%10] = id;
array[(id+1)%10] = id;
usleep(1000 * drand48());
// Make sure no other thread has changed the valued
assert(array[id] == id);
assert(array[(id-1+10)%10] == id);
assert(array[(id+1)%10] == id);
locks.unlock(id);
// printf("Thread n°%li execution end\n", id);
fflush(stdout);
return (void*)0L;
}
int main(int argc, char *argv[]){
for (uint32_t y = 0; y < 10; y++) {
assert(!locks.getValue(y));
}
locks.lock(3);
assert(locks.getValue(2));
assert(locks.getValue(3));
assert(locks.getValue(4));
locks.unlock(3);
assert(!locks.getValue(2));
assert(!locks.getValue(3));
assert(!locks.getValue(4));
locks.lock(9);
assert(locks.getValue(8));
assert(locks.getValue(9));
assert(locks.getValue(0));
locks.unlock(9);
assert(!locks.getValue(8));
assert(!locks.getValue(9));
assert(!locks.getValue(0));
locks.lock(0);
assert(locks.getValue(9));
assert(locks.getValue(0));
assert(locks.getValue(1));
locks.unlock(0);
assert(!locks.getValue(9));
assert(!locks.getValue(0));
assert(!locks.getValue(1));
// A thread is waiting
void *status;
pthread_t threads[NUM_THREAD];
for (long i = 0; i < NUM_THREAD; i++) {
// printf("Creation thread n° %li \n", i);
pthread_create(&(threads[i]), NULL, thread1, (void*) i);
}
// Wait for the end of every thread
for (long i = 0; i < NUM_THREAD; i++) {
pthread_join(threads[i], &status);
if (status != (void*)0) {
// printf("Error in the execution");
return 1;
}
}
//printf("All thread have finished \n");
return 0;
}
