C++ (Cpp) ck_stack_init Examples

Example #1

File: stack_latency.c Project: 333777/trafficserver

int
main(void)
{
	ck_hp_record_t record;
	ck_stack_entry_t entry[ENTRIES];
	uint64_t s, e, a;
	unsigned int i;
	unsigned int j;
	void *r;

	ck_hp_init(&stack_hp, CK_HP_STACK_SLOTS_COUNT, 1000000, NULL);
	r = malloc(CK_HP_STACK_SLOTS_SIZE);
	if (r == NULL) {
		ck_error("ERROR: Failed to allocate slots.\n");
	}
	ck_hp_register(&stack_hp, &record, (void *)r);

	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++)
			ck_hp_stack_push_mpmc(&stack, entry + j);
		e = rdtsc();

		a += e - s;
	}
	printf("ck_hp_stack_push_mpmc: %16" PRIu64 "\n", a / STEPS / ENTRIES);

	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		for (j = 0; j < ENTRIES; j++)
			ck_hp_stack_push_mpmc(&stack, entry + j);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++) {
			r = ck_hp_stack_pop_mpmc(&record, &stack);
		}
		e = rdtsc();
		a += e - s;
	}
	printf(" ck_hp_stack_pop_mpmc: %16" PRIu64 "\n", a / STEPS / ENTRIES);

	return 0;
}

Example #2

File: fq_utils.c Project: circonus-labs/fq

static void
fq_init_free_message_stack(free_message_stack *stack, const size_t max_free_count,
                           const size_t alloc_size)
{
    ck_stack_init(&stack->stack);
    stack->size = 0;
    stack->max_size = max_free_count;
    stack->alloc_size = alloc_size;
}

Example #3

File: latency.c Project: interwq/PipeMeas

int
main(void)
{
	ck_stack_entry_t entry[ENTRIES];
	ck_spinlock_fas_t mutex = CK_SPINLOCK_FAS_INITIALIZER;
	volatile ck_stack_entry_t * volatile r;
	uint64_t s, e, a;
	unsigned int i;
	unsigned int j;

	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++) {
			ck_spinlock_fas_lock(&mutex);
			ck_stack_push_spnc(&stack, entry + j);
			ck_spinlock_fas_unlock(&mutex);
		}
		e = rdtsc();

		a += e - s;
	}
	printf("     spinlock_push: %16" PRIu64 "\n", a / STEPS / ENTRIES);

	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		for (j = 0; j < ENTRIES; j++)
			ck_stack_push_spnc(&stack, entry + j);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++) {
			ck_spinlock_fas_lock(&mutex);
			r = ck_stack_pop_npsc(&stack);
			ck_spinlock_fas_unlock(&mutex);
		}
		e = rdtsc();
		a += e - s;
	}
	printf("      spinlock_pop: %16" PRIu64 "\n", a / STEPS / ENTRIES);
	r++;

#ifdef CK_F_STACK_PUSH_UPMC
	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++)
			ck_stack_push_upmc(&stack, entry + j);
		e = rdtsc();

		a += e - s;
	}
	printf("ck_stack_push_upmc: %16" PRIu64 "\n", a / STEPS / ENTRIES);
#endif /* CK_F_STACK_PUSH_UPMC */

#ifdef CK_F_STACK_PUSH_MPMC
	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++)
			ck_stack_push_mpmc(&stack, entry + j);
		e = rdtsc();

		a += e - s;
	}
	printf("ck_stack_push_mpmc: %16" PRIu64 "\n", a / STEPS / ENTRIES);
#endif /* CK_F_STACK_PUSH_MPMC */

#ifdef CK_F_STACK_PUSH_MPNC
	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++)
			ck_stack_push_mpnc(&stack, entry + j);
		e = rdtsc();

		a += e - s;
	}
	printf("ck_stack_push_mpnc: %16" PRIu64 "\n", a / STEPS / ENTRIES);
#endif /* CK_F_STACK_PUSH_MPNC */

#if defined(CK_F_STACK_PUSH_UPMC) && defined(CK_F_STACK_POP_UPMC)
	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		for (j = 0; j < ENTRIES; j++)
			ck_stack_push_upmc(&stack, entry + j);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++)
			r = ck_stack_pop_upmc(&stack);
		e = rdtsc();
		a += e - s;
	}
	printf(" ck_stack_pop_upmc: %16" PRIu64 "\n", a / STEPS / (sizeof(entry) / sizeof(*entry)));
#endif /* CK_F_STACK_PUSH_UPMC && CK_F_STACK_POP_UPMC */

#if defined(CK_F_STACK_POP_MPMC) && defined(CK_F_STACK_PUSH_MPMC)
	a = 0;
	for (i = 0; i < STEPS; i++) {
		ck_stack_init(&stack);

		for (j = 0; j < ENTRIES; j++)
			ck_stack_push_mpmc(&stack, entry + j);

		s = rdtsc();
		for (j = 0; j < ENTRIES; j++)
			r = ck_stack_pop_mpmc(&stack);
		e = rdtsc();
		a += e - s;
	}
	printf(" ck_stack_pop_mpmc: %16" PRIu64 "\n", a / STEPS / (sizeof(entry) / sizeof(*entry)));
	r++;
#endif

	return 0;
}