static void powertop_init(void)
{
static char initialized = 0;
int ret;
struct statfs st_fs;
struct rlimit rlmt;
if (initialized)
return;
checkroot();
rlmt.rlim_cur = rlmt.rlim_max = get_nr_open();
setrlimit (RLIMIT_NOFILE, &rlmt);
ret = system("/sbin/modprobe cpufreq_stats > /dev/null 2>&1");
ret = system("/sbin/modprobe msr > /dev/null 2>&1");
statfs("/sys/kernel/debug", &st_fs);
if (st_fs.f_type != (long) DEBUGFS_MAGIC) {
if (access("/bin/mount", X_OK) == 0) {
ret = system("/bin/mount -t debugfs debugfs /sys/kernel/debug > /dev/null 2>&1");
} else {
ret = system("mount -t debugfs debugfs /sys/kernel/debug > /dev/null 2>&1");
}
if (ret != 0) {
printf(_("Failed to mount debugfs!\n"));
printf(_("exiting...\n"));
exit(EXIT_FAILURE);
}
}
srand(time(NULL));
if (access("/var/cache/", W_OK) == 0)
mkdir("/var/cache/powertop", 0600);
else
mkdir("/data/local/powertop", 0600);
load_results("saved_results.powertop");
load_parameters("saved_parameters.powertop");
enumerate_cpus();
create_all_devices();
detect_power_meters();
register_parameter("base power", 100, 0.5);
register_parameter("cpu-wakeups", 39.5);
register_parameter("cpu-consumption", 1.56);
register_parameter("gpu-operations", 0.5576);
register_parameter("disk-operations-hard", 0.2);
register_parameter("disk-operations", 0.0);
register_parameter("xwakes", 0.1);
load_parameters("saved_parameters.powertop");
initialized = 1;
}
int
main(int ac, char **av)
{
char *t;
int opt, mode = MODE_PAGER;
extern int optind;
extern char *optarg;
if (ac < 2)
usage();
setlocale(LC_ALL, "");
/* Populate $HOME */
t = getenv("HOME");
if (t == NULL || *t == '\0')
errx(0, "Unknown variable '$HOME'.");
mbstowcs(home, t, MAXPATHLEN);
/* Populate $EDITOR */
t = getenv("EDITOR");
if (t != NULL)
mbstowcs(editor, t, MAXPATHLEN);
while ((opt = getopt(ac, av, "hVdeg:qrc:")) != -1) {
switch (opt) {
case 'd':
cfg_debug = 1;
break;
case 'V':
mode = MODE_VERSION;
break;
case 'q':
mode = MODE_QUERY;
break;
case 'e':
mode = MODE_EDIT;
break;
case 'g':
mode = MODE_GENERATE;
password_length = strtoumax(optarg, NULL, 10);
break;
case 'r':
mode = MODE_RAW;
break;
case 'c':
swprintf(cfg_config_path, MAXPATHLEN, L"%s", optarg);
break;
default:
usage();
}
}
debug("read config");
config_set_defaults();
config_check_paths();
config_read();
ac -= optind;
av += optind;
keywords_load_from_argv(av);
/* Decide if we use the internal pager or just dump to screen. */
switch (mode) {
case MODE_VERSION:
printf("mdp-%s\n", MDP_VERSION);
break;
case MODE_RAW:
debug("mode: MODE_RAW");
if (ac == 0)
usage();
gpg_check();
load_results();
filter_results();
print_results();
break;
case MODE_PAGER:
debug("mode: MODE_PAGER");
if (ac == 0)
usage();
gpg_check();
load_results();
filter_results();
pager(START_WITHOUT_PROMPT);
break;
case MODE_QUERY:
debug("mode: MODE_QUERY");
gpg_check();
load_results();
pager(START_WITH_PROMPT);
break;
case MODE_EDIT:
debug("mode: MODE_EDIT");
if (ac != 0)
usage();
gpg_check();
lock_set();
load_results();
edit_results();
break;
case MODE_GENERATE:
debug("mode: MODE_GENERATE");
if (ac != 0)
usage();
print_passwords(password_length, cfg_password_count);
break;
default:
errx(1, "unknown mode");
break;
}
debug("normal shutdown");
return 0;
}
