60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
// vim:ts=8:expandtab
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#include <stdlib.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include "i3status.h"
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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 2732
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#define TZ_KELVTOC(x) (((x) - TZ_ZEROC) / 10), abs(((x) - TZ_ZEROC) % 10)
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#endif
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static char *thermal_zone;
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/*
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* Reads the CPU temperature from /sys/class/thermal/thermal_zone0/temp and
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* returns the temperature in degree celcius.
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*
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*/
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void print_cpu_temperature_info(int zone, const char *format) {
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const char *walk;
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static char buf[16];
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asprintf(&thermal_zone, THERMAL_ZONE, zone);
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for (walk = format; *walk != '\0'; walk++) {
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if (*walk != '%') {
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putchar(*walk);
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continue;
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}
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if (BEGINS_WITH(walk+1, "degrees")) {
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#if defined(LINUX)
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long int temp;
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if (!slurp(thermal_zone, buf, sizeof(buf)))
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die("Could not open \"%s\"\n", thermal_zone);
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temp = strtol(buf, NULL, 10);
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if (temp == LONG_MIN || temp == LONG_MAX || temp <= 0)
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(void)printf("?");
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else
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(void)printf("%ld", (temp/1000));
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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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(void)printf("No thermal zone found");
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return;
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}
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(void)printf("%d.%d", TZ_KELVTOC(sysctl_rslt));
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#endif
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walk += strlen("degrees");
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}
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}
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}
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