void cpu_linux::parse_cstates_start(void)
{
ifstream file;
DIR *dir;
struct dirent *entry;
char filename[256];
int len;
len = snprintf(filename, sizeof(filename), "/sys/devices/system/cpu/cpu%i/cpuidle", number);
dir = opendir(filename);
if (!dir)
return;
/* For each C-state, there is a stateX directory which
* contains a 'usage' and a 'time' (duration) file */
while ((entry = readdir(dir))) {
char linux_name[64];
char human_name[64];
uint64_t usage = 0;
uint64_t duration = 0;
if (strlen(entry->d_name) < 3)
continue;
pt_strcpy(linux_name, entry->d_name);
pt_strcpy(human_name, linux_name);
snprintf(filename + len, sizeof(filename) - len, "/%s/name", entry->d_name);
file.open(filename, ios::in);
if (file) {
file.getline(human_name, sizeof(human_name));
file.close();
}
if (strcmp(human_name, "C0")==0)
pt_strcpy(human_name, _("C0 polling"));
snprintf(filename + len, sizeof(filename) - len, "/%s/usage", entry->d_name);
file.open(filename, ios::in);
if (file) {
file >> usage;
file.close();
} else
continue;
snprintf(filename + len, sizeof(filename) - len, "/%s/time", entry->d_name);
file.open(filename, ios::in);
if (file) {
file >> duration;
file.close();
}
update_cstate(linux_name, human_name, usage, duration, 1);
}
interrupt::interrupt(const char *_handler, int _number) : power_consumer()
{
char buf[128];
running_since = 0;
number = _number;
pt_strcpy(handler, _handler);
raw_count = 0;
snprintf(desc, sizeof(desc), "[%i] %s", number, pretty_print(handler, buf, 128));
}
class interrupt * find_create_interrupt(const char *_handler, int nr, int cpu)
{
char handler[64];
unsigned int i;
class interrupt *new_irq;
pt_strcpy(handler, _handler);
if (strcmp(handler, "timer")==0)
sprintf(handler, "timer/%i", cpu);
for (i = 0; i < all_interrupts.size(); i++) {
if (all_interrupts[i] && all_interrupts[i]->number == nr && strcmp(handler, all_interrupts[i]->handler) == 0)
return all_interrupts[i];
}
new_irq = new class interrupt(handler, nr);
all_interrupts.push_back(new_irq);
return new_irq;
}
sysfs_power_meter::sysfs_power_meter(const char *power_supply_name)
{
rate = 0.0;
capacity = 0.0;
pt_strcpy(name, power_supply_name);
}