lucic71
/
i3status
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
i3status/src/print_cpu_temperature.c

270 lines
8.5 KiB
C
Raw Blame History

// vim:ts=4:sw=4:expandtab
#include <stdlib.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <yajl/yajl_gen.h>
#include <yajl/yajl_version.h>
#include "i3status.h"
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <err.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#define TZ_ZEROC 2732
#define TZ_KELVTOC(x) (((x)-TZ_ZEROC) / 10), abs(((x)-TZ_ZEROC) % 10)
#define TZ_AVG(x) ((x)-TZ_ZEROC) / 10
#endif
#if defined(__DragonFly__)
#include <sys/sysctl.h>
#include <sys/types.h>
#include <sys/sensors.h>
#define MUKTOC(v) ((v - 273150000) / 1000000.0)
#endif
#if defined(__OpenBSD__)
#include <sys/param.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/sensors.h>
#include <errno.h>
#include <err.h>
#define MUKTOC(v) ((v - 273150000) / 1000000.0)
#endif
#if defined(__NetBSD__)
#include <fcntl.h>
#include <prop/proplib.h>
#include <sys/envsys.h>
#define MUKTOC(v) ((v - 273150000) / 1000000.0)
#endif
/*
* Reads the CPU temperature from /sys/class/thermal/thermal_zone%d/temp (or
* the user provided path) and returns the temperature in degree celcius.
*
*/
void print_cpu_temperature_info(yajl_gen json_gen, char *buffer, int zone, const char *path, const char *format, int max_threshold) {
char *outwalk = buffer;
#ifdef THERMAL_ZONE
const char *walk;
bool colorful_output = false;
char *thermal_zone;
if (path == NULL)
asprintf(&thermal_zone, THERMAL_ZONE, zone);
else
asprintf(&thermal_zone, path, zone);
INSTANCE(thermal_zone);
for (walk = format; *walk != '\0'; walk++) {
if (*walk != '%') {
*(outwalk++) = *walk;
continue;
}
if (BEGINS_WITH(walk + 1, "degrees")) {
#if defined(LINUX)
static char buf[16];
long int temp;
if (!slurp(thermal_zone, buf, sizeof(buf)))
goto error;
temp = strtol(buf, NULL, 10);
if (temp == LONG_MIN || temp == LONG_MAX || temp <= 0)
*(outwalk++) = '?';
else {
if ((temp / 1000) >= max_threshold) {
START_COLOR("color_bad");
colorful_output = true;
}
outwalk += sprintf(outwalk, "%ld", (temp / 1000));
if (colorful_output) {
END_COLOR;
colorful_output = false;
}
}
#elif defined(__DragonFly__)
struct sensor th_sensor;
size_t th_sensorlen;
th_sensorlen = sizeof(th_sensor);
if (sysctlbyname(thermal_zone, &th_sensor, &th_sensorlen, NULL, 0) == -1) {
perror("sysctlbyname");
goto error;
}
if (MUKTOC(th_sensor.value) >= max_threshold) {
START_COLOR("color_bad");
colorful_output = true;
}
outwalk += sprintf(outwalk, "%.2f", MUKTOC(th_sensor.value));
if (colorful_output) {
END_COLOR;
colorful_output = false;
}
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
int sysctl_rslt;
size_t sysctl_size = sizeof(sysctl_rslt);
if (sysctlbyname(thermal_zone, &sysctl_rslt, &sysctl_size, NULL, 0))
goto error;
if (TZ_AVG(sysctl_rslt) >= max_threshold) {
START_COLOR("color_bad");
colorful_output = true;
}
outwalk += sprintf(outwalk, "%d.%d", TZ_KELVTOC(sysctl_rslt));
if (colorful_output) {
END_COLOR;
colorful_output = false;
}
#elif defined(__OpenBSD__)
struct sensordev sensordev;
struct sensor sensor;
size_t sdlen, slen;
int dev, numt, mib[5] = {CTL_HW, HW_SENSORS, 0, 0, 0};
sdlen = sizeof(sensordev);
slen = sizeof(sensor);
for (dev = 0;; dev++) {
mib[2] = dev;
if (sysctl(mib, 3, &sensordev, &sdlen, NULL, 0) == -1) {
if (errno == ENXIO)
continue;
if (errno == ENOENT)
break;
goto error;
}
/* 'path' is the node within the full path (defaults to acpitz0). */
if (BEGINS_WITH(sensordev.xname, thermal_zone)) {
mib[3] = SENSOR_TEMP;
/* Limit to temo0, but should retrieve from a full path... */
for (numt = 0; numt < 1 /*sensordev.maxnumt[SENSOR_TEMP]*/; numt++) {
mib[4] = numt;
if (sysctl(mib, 5, &sensor, &slen, NULL, 0) == -1) {
if (errno != ENOENT) {
warn("sysctl");
continue;
}
}
if ((int)MUKTOC(sensor.value) >= max_threshold) {
START_COLOR("color_bad");
colorful_output = true;
}
outwalk += sprintf(outwalk, "%.2f", MUKTOC(sensor.value));
if (colorful_output) {
END_COLOR;
colorful_output = false;
}
}
}
}
#elif defined(__NetBSD__)
int fd, rval;
bool err = false;
prop_dictionary_t dict;
prop_array_t array;
prop_object_iterator_t iter;
prop_object_iterator_t iter2;
prop_object_t obj, obj2, obj3;
fd = open("/dev/sysmon", O_RDONLY);
if (fd == -1)
goto error;
rval = prop_dictionary_recv_ioctl(fd, ENVSYS_GETDICTIONARY, &dict);
if (rval == -1) {
err = true;
goto error_netbsd1;
}
/* No drivers registered? */
if (prop_dictionary_count(dict) == 0) {
err = true;
goto error_netbsd2;
}
iter = prop_dictionary_iterator(dict);
if (iter == NULL) {
err = true;
goto error_netbsd2;
}
/* iterate over the dictionary returned by the kernel */
while ((obj = prop_object_iterator_next(iter)) != NULL) {
/* skip this dict if it's not what we're looking for */
if ((strlen(prop_dictionary_keysym_cstring_nocopy(obj)) != strlen(thermal_zone)) ||
(strncmp(thermal_zone,
prop_dictionary_keysym_cstring_nocopy(obj),
strlen(thermal_zone)) != 0))
continue;
array = prop_dictionary_get_keysym(dict, obj);
if (prop_object_type(array) != PROP_TYPE_ARRAY) {
err = true;
goto error_netbsd3;
}
iter2 = prop_array_iterator(array);
if (!iter2) {
err = true;
goto error_netbsd3;
}
/* iterate over array of dicts specific to target sensor */
while ((obj2 = prop_object_iterator_next(iter2)) != NULL) {
obj3 = prop_dictionary_get(obj2, "cur-value");
float temp = MUKTOC(prop_number_integer_value(obj3));
if ((int)temp >= max_threshold) {
START_COLOR("color_bad");
colorful_output = true;
}
outwalk += sprintf(outwalk, "%.2f", temp);
if (colorful_output) {
END_COLOR;
colorful_output = false;
}
break;
}
prop_object_iterator_release(iter2);
}
error_netbsd3:
prop_object_iterator_release(iter);
error_netbsd2:
prop_object_release(dict);
error_netbsd1:
close(fd);
if (err)
goto error;
#endif
walk += strlen("degrees");
}
}
free(thermal_zone);
OUTPUT_FULL_TEXT(buffer);
return;
error:
#endif
free(thermal_zone);
OUTPUT_FULL_TEXT("cant read temp");
(void)fputs("i3status: Cannot read temperature. Verify that you have a thermal zone in /sys/class/thermal or disable the cpu_temperature module in your i3status config.\n", stderr);
}
Reference in New Issue View Git Blame Copy Permalink