Lines Matching +full:phase +full:- +full:locked

27  * Reusable 2 PHASE task barrier (rendez-vous point) implementation for N tasks.
28  * Based on the Little book of semaphores - https://greenteapress.com/wp/semaphores/
57 	tb->n = 0;  in task_barrier_init()
58 	atomic_set(&tb->count, 0);  in task_barrier_init()
59 	sema_init(&tb->enter_turnstile, 0);  in task_barrier_init()
60 	sema_init(&tb->exit_turnstile, 0);  in task_barrier_init()
65 	tb->n++;  in task_barrier_add_task()
70 	tb->n--;  in task_barrier_rem_task()
76  * When all thread passed this code the entry barrier is back to locked state.
80 	if (atomic_inc_return(&tb->count) == tb->n)  in task_barrier_enter()
81 		task_barrier_signal_turnstile(&tb->enter_turnstile, tb->n);  in task_barrier_enter()
83 	down(&tb->enter_turnstile);  in task_barrier_enter()
94 	if (atomic_dec_return(&tb->count) == 0)  in task_barrier_exit()
95 		task_barrier_signal_turnstile(&tb->exit_turnstile, tb->n);  in task_barrier_exit()
97 	down(&tb->exit_turnstile);  in task_barrier_exit()