278 lines
7.9 KiB
C
278 lines
7.9 KiB
C
// vim:ts=4:sw=4:expandtab
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#include <config.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <glob.h>
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#include <stdio.h>
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#include <string.h>
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#include <yajl/yajl_gen.h>
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#include <yajl/yajl_version.h>
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#include "i3status.h"
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#define STRING_SIZE 20
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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#include <err.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#define TZ_ZEROC 2731
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#define TZ_KELVTOC(x) (((x)-TZ_ZEROC) / 10), abs(((x)-TZ_ZEROC) % 10)
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#define TZ_AVG(x) ((x)-TZ_ZEROC) / 10
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#endif
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#if defined(__DragonFly__)
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#include <sys/sysctl.h>
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#include <sys/types.h>
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#include <sys/sensors.h>
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#define MUKTOC(v) ((v - 273150000) / 1000000.0)
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#endif
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#if defined(__OpenBSD__)
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <sys/sensors.h>
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#include <errno.h>
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#include <err.h>
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#define MUKTOC(v) ((v - 273150000) / 1000000.0)
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#endif
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#if defined(__NetBSD__)
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#include <fcntl.h>
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#include <prop/proplib.h>
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#include <sys/envsys.h>
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#define MUKTOC(v) ((v - 273150000) / 1000000.0)
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#endif
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typedef struct temperature_s {
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double raw_value;
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char formatted_value[20];
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} temperature_t;
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#define ERROR_CODE 1
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static int read_temperature(char *thermal_zone, temperature_t *temperature) {
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#if defined(__linux__)
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static char buf[16];
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long int temp;
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if (!slurp(thermal_zone, buf, sizeof(buf)))
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return ERROR_CODE;
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temp = strtol(buf, NULL, 10);
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temperature->raw_value = temp / 1000;
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if (temp == LONG_MIN || temp == LONG_MAX || temp <= 0)
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strcpy(temperature->formatted_value, "?");
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else
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sprintf(temperature->formatted_value, "%ld", (temp / 1000));
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#elif defined(__DragonFly__)
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struct sensor th_sensor;
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size_t th_sensorlen;
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th_sensorlen = sizeof(th_sensor);
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if (sysctlbyname(thermal_zone, &th_sensor, &th_sensorlen, NULL, 0) == -1) {
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perror("sysctlbyname");
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return ERROR_CODE;
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}
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temperature->raw_value = MUKTOC(th_sensor.value);
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sprintf(temperature->formatted_value, "%.2f", MUKTOC(th_sensor.value));
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#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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int sysctl_rslt;
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size_t sysctl_size = sizeof(sysctl_rslt);
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if (sysctlbyname(thermal_zone, &sysctl_rslt, &sysctl_size, NULL, 0))
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return ERROR_CODE;
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temperature->raw_value = TZ_AVG(sysctl_rslt);
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sprintf(temperature->formatted_value, "%d.%d", TZ_KELVTOC(sysctl_rslt));
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#elif defined(__OpenBSD__)
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struct sensordev sensordev;
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struct sensor sensor;
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size_t sdlen, slen;
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int dev, numt, mib[5] = {CTL_HW, HW_SENSORS, 0, 0, 0};
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sdlen = sizeof(sensordev);
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slen = sizeof(sensor);
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for (dev = 0;; dev++) {
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mib[2] = dev;
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if (sysctl(mib, 3, &sensordev, &sdlen, NULL, 0) == -1) {
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if (errno == ENXIO)
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continue;
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if (errno == ENOENT)
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break;
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return ERROR_CODE;
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}
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/* 'path' is the node within the full path (defaults to acpitz0). */
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if (BEGINS_WITH(sensordev.xname, thermal_zone)) {
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mib[3] = SENSOR_TEMP;
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/* Limit to temp0, but should retrieve from a full path... */
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for (numt = 0; numt < 1 /*sensordev.maxnumt[SENSOR_TEMP]*/; numt++) {
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mib[4] = numt;
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if (sysctl(mib, 5, &sensor, &slen, NULL, 0) == -1) {
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if (errno != ENOENT) {
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warn("sysctl");
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continue;
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}
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}
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temperature->raw_value = MUKTOC(sensor.value);
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sprintf(temperature->formatted_value, "%.2f", MUKTOC(sensor.value));
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}
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}
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}
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#elif defined(__NetBSD__)
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int fd, rval;
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bool err = false;
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prop_dictionary_t dict;
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prop_array_t array;
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prop_object_iterator_t iter;
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prop_object_iterator_t iter2;
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prop_object_t obj, obj2, obj3;
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fd = open("/dev/sysmon", O_RDONLY);
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if (fd == -1)
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return ERROR_CODE;
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rval = prop_dictionary_recv_ioctl(fd, ENVSYS_GETDICTIONARY, &dict);
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if (rval == -1) {
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err = true;
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goto error_netbsd1;
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}
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/* No drivers registered? */
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if (prop_dictionary_count(dict) == 0) {
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err = true;
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goto error_netbsd2;
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}
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iter = prop_dictionary_iterator(dict);
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if (iter == NULL) {
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err = true;
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goto error_netbsd2;
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}
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/* iterate over the dictionary returned by the kernel */
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while ((obj = prop_object_iterator_next(iter)) != NULL) {
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/* skip this dict if it's not what we're looking for */
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if ((strlen(prop_dictionary_keysym_cstring_nocopy(obj)) != strlen(thermal_zone)) ||
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(strncmp(thermal_zone,
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prop_dictionary_keysym_cstring_nocopy(obj),
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strlen(thermal_zone)) != 0))
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continue;
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array = prop_dictionary_get_keysym(dict, obj);
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if (prop_object_type(array) != PROP_TYPE_ARRAY) {
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err = true;
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goto error_netbsd3;
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}
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iter2 = prop_array_iterator(array);
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if (!iter2) {
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err = true;
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goto error_netbsd3;
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}
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/* iterate over array of dicts specific to target sensor */
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while ((obj2 = prop_object_iterator_next(iter2)) != NULL) {
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obj3 = prop_dictionary_get(obj2, "cur-value");
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float temp = MUKTOC(prop_number_integer_value(obj3));
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temperature->raw_value = temp;
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sprintf(temperature->formatted_value, "%.2f", temp);
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break;
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}
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prop_object_iterator_release(iter2);
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}
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error_netbsd3:
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prop_object_iterator_release(iter);
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error_netbsd2:
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prop_object_release(dict);
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error_netbsd1:
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close(fd);
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if (err)
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return ERROR_CODE;
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#endif
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return 0;
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}
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/*
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* Reads the CPU temperature from /sys/class/thermal/thermal_zone%d/temp (or
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* the user provided path) and returns the temperature in degree celsius.
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*
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*/
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void print_cpu_temperature_info(cpu_temperature_ctx_t *ctx) {
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char *outwalk = ctx->buf;
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#ifdef THERMAL_ZONE
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const char *selected_format = ctx->format;
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bool colorful_output = false;
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char *thermal_zone;
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temperature_t temperature;
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temperature.raw_value = 0;
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sprintf(temperature.formatted_value, "%.2f", 0.0);
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if (ctx->path == NULL)
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asprintf(&thermal_zone, THERMAL_ZONE, ctx->zone);
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else {
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static glob_t globbuf;
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if (glob(ctx->path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) != 0)
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die("glob() failed\n");
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if (globbuf.gl_pathc == 0) {
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/* No glob matches, the specified path does not contain a wildcard. */
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asprintf(&thermal_zone, ctx->path, ctx->zone);
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} else {
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/* glob matched, we take the first match and ignore the others */
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asprintf(&thermal_zone, "%s", globbuf.gl_pathv[0]);
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}
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globfree(&globbuf);
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}
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INSTANCE(thermal_zone);
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if (read_temperature(thermal_zone, &temperature) != 0)
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goto error;
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if (temperature.raw_value >= ctx->max_threshold) {
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START_COLOR("color_bad");
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colorful_output = true;
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if (ctx->format_above_threshold != NULL)
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selected_format = ctx->format_above_threshold;
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}
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char string_degrees[STRING_SIZE];
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snprintf(string_degrees, STRING_SIZE, "%s", temperature.formatted_value);
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placeholder_t placeholders[] = {
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{.name = "%degrees", .value = string_degrees}};
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const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
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char *formatted = format_placeholders(selected_format, &placeholders[0], num);
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OUTPUT_FORMATTED;
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free(formatted);
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if (colorful_output) {
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END_COLOR;
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colorful_output = false;
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}
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free(thermal_zone);
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OUTPUT_FULL_TEXT(ctx->buf);
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return;
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error:
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free(thermal_zone);
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#endif
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OUTPUT_FULL_TEXT("can't read temp");
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(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);
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}
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