static int read_sysfs_capacity(char const *dir, /* {{{ */
char const *power_supply,
char const *plugin_instance) {
gauge_t capacity_charged = NAN;
gauge_t capacity_full = NAN;
gauge_t capacity_design = NAN;
int status;
status =
sysfs_file_to_gauge(dir, power_supply, "energy_now", &capacity_charged);
if (status != 0)
return (status);
status =
sysfs_file_to_gauge(dir, power_supply, "energy_full", &capacity_full);
if (status != 0)
return (status);
status = sysfs_file_to_gauge(dir, power_supply, "energy_full_design",
&capacity_design);
if (status != 0)
return (status);
submit_capacity(plugin_instance, capacity_charged * SYSFS_FACTOR,
capacity_full * SYSFS_FACTOR, capacity_design * SYSFS_FACTOR);
return (0);
} /* }}} int read_sysfs_capacity */
static int read_sysfs_callback (char const *dir, /* {{{ */
char const *power_supply,
void *user_data)
{
int *battery_index = user_data;
char const *plugin_instance;
char buffer[32];
gauge_t v = NAN;
_Bool discharging = 0;
int status;
/* Ignore non-battery directories, such as AC power. */
status = sysfs_file_to_buffer (dir, power_supply, "type", buffer, sizeof (buffer));
if (status != 0)
return (0);
if (strcasecmp ("Battery", buffer) != 0)
return (0);
(void) sysfs_file_to_buffer (dir, power_supply, "status", buffer, sizeof (buffer));
if (strcasecmp ("Discharging", buffer) == 0)
discharging = 1;
/* FIXME: This is a dirty hack for backwards compatibility: The battery
* plugin, for a very long time, has had the plugin_instance
* hard-coded to "0". So, to keep backwards compatibility, we'll use
* "0" for the first battery we find and the power_supply name for all
* following. This should be reverted in a future major version. */
plugin_instance = (*battery_index == 0) ? "0" : power_supply;
(*battery_index)++;
read_sysfs_capacity (dir, power_supply, plugin_instance);
if (sysfs_file_to_gauge (dir, power_supply, "power_now", &v) == 0)
{
if (discharging)
v *= -1.0;
battery_submit (plugin_instance, "power", v * SYSFS_FACTOR);
}
if (sysfs_file_to_gauge (dir, power_supply, "current_now", &v) == 0)
{
if (discharging)
v *= -1.0;
battery_submit (plugin_instance, "current", v * SYSFS_FACTOR);
}
if (sysfs_file_to_gauge (dir, power_supply, "voltage_now", &v) == 0)
battery_submit (plugin_instance, "voltage", v * SYSFS_FACTOR);
return (0);
} /* }}} int read_sysfs_callback */