C++ (Cpp) CMM_LOAD_SHARED Examples

Example #1

File: lttng-clock.c Project: MasonMoreland/lttng-ust

int lttng_ust_trace_clock_set_description_cb(const char *(*description)(void))
{
	if (CMM_LOAD_SHARED(lttng_trace_clock))
		return -EBUSY;
	user_tc.description = description;
	return 0;
}

Example #2

File: lttng-clock.c Project: MasonMoreland/lttng-ust

int lttng_ust_trace_clock_set_name_cb(const char *(*name)(void))
{
	if (CMM_LOAD_SHARED(lttng_trace_clock))
		return -EBUSY;
	user_tc.name = name;
	return 0;
}

Example #3

File: lttng-clock.c Project: MasonMoreland/lttng-ust

int lttng_ust_trace_clock_set_uuid_cb(int (*uuid)(char *uuid))
{
	if (CMM_LOAD_SHARED(lttng_trace_clock))
		return -EBUSY;
	user_tc.uuid = uuid;
	return 0;
}

Example #4

File: lttng-clock.c Project: MasonMoreland/lttng-ust

int lttng_ust_trace_clock_set_freq_cb(uint64_t (*freq)(void))
{
	if (CMM_LOAD_SHARED(lttng_trace_clock))
		return -EBUSY;
	user_tc.freq = freq;
	return 0;
}

Example #5

File: lttng-clock.c Project: MasonMoreland/lttng-ust

int lttng_ust_trace_clock_set_read64_cb(uint64_t (*read64)(void))
{
	if (CMM_LOAD_SHARED(lttng_trace_clock))
		return -EBUSY;
	user_tc.read64 = read64;
	return 0;
}

Example #6

File: lttng-context-vpid.c Project: lttng/lttng-ust

static inline
pid_t wrapper_getvpid(void)
{
	pid_t vpid;

	vpid = CMM_LOAD_SHARED(cached_vpid);
	if (caa_unlikely(!vpid)) {
		vpid = getpid();
		CMM_STORE_SHARED(cached_vpid, vpid);
	}
	return vpid;
}

Example #7

File: print-output.c Project: efficios/urcu-tutorial

static
void *output_thread_fct(void *data)
{
	DBG("In user output thread.");
	rcu_register_thread();

	/* Read keys typed by the user */
	while (!CMM_LOAD_SHARED(exit_program)) {
		if (!CMM_LOAD_SHARED(hide_output)) {
			pthread_mutex_lock(&print_output_mutex);
			DBG("Refresh screen.");

			do_print_output();

			fflush(stdout);
			pthread_mutex_unlock(&print_output_mutex);
		}
		sleep(URCU_GAME_REFRESH_PERIOD);
	}

	rcu_unregister_thread();
	DBG("User output thread exiting.");
	return NULL;
}

Example #8

File: lttng-clock.c Project: MasonMoreland/lttng-ust

int lttng_ust_enable_trace_clock_override(void)
{
	if (CMM_LOAD_SHARED(lttng_trace_clock))
		return -EBUSY;
	if (!user_tc.read64)
		return -EINVAL;
	if (!user_tc.freq)
		return -EINVAL;
	if (!user_tc.name)
		return -EINVAL;
	if (!user_tc.description)
		return -EINVAL;
	/* Use default uuid cb when NULL */
	cmm_smp_mb();	/* Store callbacks before trace clock */
	CMM_STORE_SHARED(lttng_trace_clock, &user_tc);
	return 0;
}