Esempi in C++ (Cpp) per log_rtas

Esempio n. 1

File: rtasd.c Progetto: huangyukun2012/linux-2.4.21

static int rtasd(void *unused)
{
	int cpu = 0;
	int error;
	int first_pass = 1;
	int event_scan = rtas_token("event-scan");

	if (event_scan == RTAS_UNKNOWN_SERVICE || get_eventscan_parms() == -1)
		goto error;

	rtas_log_buf = vmalloc(rtas_error_log_max*LOG_NUMBER);
	if (!rtas_log_buf) {
		printk(KERN_ERR "rtasd: no memory\n");
		goto error;
	}

	DEBUG("will sleep for %d jiffies\n", (HZ*60/rtas_event_scan_rate) / 2);

	daemonize();
	sigfillset(&current->blocked);
	sprintf(current->comm, "rtasd");

	/* Rusty unreal time task */
	current->policy = SCHED_FIFO;
	current->nice = sys_sched_get_priority_max(SCHED_FIFO) + 1;

	cpu = 0;
	current->cpus_allowed = 1UL << cpu_logical_map(cpu);
	schedule();

	while(1) {
		do {
			memset(logdata, 0, rtas_error_log_max);
			error = rtas_call(event_scan, 4, 1, NULL,
					EVENT_SCAN_ALL_EVENTS, 0,
					__pa(logdata), rtas_error_log_max);
			if (error == -1) {
				printk(KERN_ERR "event-scan failed\n");
				break;
			}

			if (error == 0)
				log_rtas(logdata);

		} while(error == 0);

		DEBUG("watchdog scheduled on cpu %d\n", smp_processor_id());

		cpu++;
		if (cpu >= smp_num_cpus) {

			if (first_pass && surveillance_requested) {
				DEBUG("enabling surveillance\n");
				if (enable_surveillance())
					goto error_vfree;
				DEBUG("surveillance enabled\n");
			}

			first_pass = 0;
			cpu = 0;
		}

		current->cpus_allowed = 1UL << cpu_logical_map(cpu);

		/* Check all cpus for pending events before sleeping*/
		if (first_pass) {
			schedule();
		} else {
			set_current_state(TASK_INTERRUPTIBLE);
			schedule_timeout((HZ*60/rtas_event_scan_rate) / 2);
		}
	}

error_vfree:
	vfree(rtas_log_buf);
error:
	/* Should delete proc entries */
	return -EINVAL;
}

Esempio n. 2

File: rtasd.c Progetto: sarnobat/knoppix

static int rtasd(void *unused)
{
	int cpu = 0;
	int error;
	int first_pass = 1;
	int event_scan = rtas_token("event-scan");

	if (event_scan == RTAS_UNKNOWN_SERVICE || get_eventscan_parms() == -1)
		goto error;

	rtas_log_buf = vmalloc(rtas_error_log_max*LOG_NUMBER);
	if (!rtas_log_buf) {
		printk(KERN_ERR "rtasd: no memory\n");
		goto error;
	}

	DEBUG("will sleep for %d jiffies\n", (HZ*60/rtas_event_scan_rate) / 2);

	daemonize("rtasd");

#if 0
	/* Rusty unreal time task */
	current->policy = SCHED_FIFO;
	current->nice = sys_sched_get_priority_max(SCHED_FIFO) + 1;
#endif

repeat:
	for (cpu = 0; cpu < NR_CPUS; cpu++) {
		if (!cpu_online(cpu))
			continue;

		DEBUG("scheduling on %d\n", cpu);
		set_cpus_allowed(current, cpumask_of_cpu(cpu));
		DEBUG("watchdog scheduled on cpu %d\n", smp_processor_id());

		do {
			memset(logdata, 0, rtas_error_log_max);
			error = rtas_call(event_scan, 4, 1, NULL,
					EVENT_SCAN_ALL_EVENTS, 0,
					__pa(logdata), rtas_error_log_max);
			if (error == -1) {
				printk(KERN_ERR "event-scan failed\n");
				break;
			}

			if (error == 0)
				log_rtas(logdata);

		} while(error == 0);

		/*
		 * Check all cpus for pending events quickly, sleeping for
		 * at least one second since some machines have problems
		 * if we call event-scan too quickly
		 */
		set_current_state(TASK_INTERRUPTIBLE);
		schedule_timeout(first_pass ? HZ : (HZ*60/rtas_event_scan_rate) / 2);
	}

	if (first_pass && surveillance_requested) {
		DEBUG("enabling surveillance\n");
		if (enable_surveillance())
			goto error_vfree;
		DEBUG("surveillance enabled\n");
	}

	first_pass = 0;
	goto repeat;

error_vfree:
	vfree(rtas_log_buf);
error:
	/* Should delete proc entries */
	return -EINVAL;
}