forked from enlightenment/enlightenment
126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
#include "cpumonitor.h"
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#if defined(__FreeBSD__) || defined (__DragonFly__)
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# include <sys/types.h>
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# include <sys/sysctl.h>
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# define CPU_STATES 5
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#endif
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#if defined(__OpenBSD__)
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# include <sys/sched.h>
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# include <sys/sysctl.h>
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# define CPU_STATES 6
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#endif
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int
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_cpumonitor_sysctl_getcores(void)
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{
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int cores = 0;
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#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__)
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size_t len;
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int mib[2] = { CTL_HW, HW_NCPU };
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len = sizeof(cores);
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if (sysctl(mib, 2, &cores, &len, NULL, 0) < 0) return 0;
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#endif
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return cores;
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}
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void
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_cpumonitor_sysctl_getusage(unsigned long *prev_total, unsigned long *prev_idle, int *prev_percent, Eina_List *cores)
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{
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CPU_Core *core;
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size_t size;
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unsigned long percent_all = 0, total_all = 0, idle_all = 0;
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int i, j;
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#if defined(__FreeBSD__) || defined(__DragonFly__)
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int ncpu = _cpumonitor_sysctl_getcores();
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if (!ncpu) return;
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size = sizeof(unsigned long) * (CPU_STATES * ncpu);
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unsigned long cpu_times[ncpu][CPU_STATES];
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if (sysctlbyname("kern.cp_times", cpu_times, &size, NULL, 0) < 0)
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return;
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for (i = 0; i < ncpu; i++)
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{
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unsigned long *cpu = cpu_times[i];
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double total = 0;
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for (j = 0; j < CPU_STATES; j++)
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total += cpu[j];
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core = eina_list_nth(cores, i);
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int diff_total = total - core->total;
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int diff_idle = cpu[4] - core->idle;
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if (diff_total == 0) diff_total = 1;
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double ratio = diff_total / 100.0;
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unsigned long used = diff_total - diff_idle;
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int percent = used / ratio;
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if (percent > 100)
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percent = 100;
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else if (percent < 0)
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percent = 0;
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core->percent = percent;
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core->total = total;
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core->idle = cpu[4];
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percent_all += (int)percent;
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total_all += total;
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idle_all += core->idle;
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}
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*prev_total = total_all / ncpu;
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*prev_idle = idle_all / ncpu;
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*prev_percent = (int)(percent_all / ncpu);
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#elif defined(__OpenBSD__)
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int ncpu = _cpumonitor_sysctl_getcores();
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struct cpustats cpu_times[CPU_STATES];
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memset(&cpu_times, 0, CPU_STATES * sizeof(struct cpustats));
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if (!ncpu) return;
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for (i = 0; i < ncpu; i++)
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{
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unsigned long total = 0, idle;
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int diff_total, diff_idle;
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int cpu_time_mib[] = { CTL_KERN, KERN_CPUSTATS, 0 };
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size = sizeof(struct cpustats);
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cpu_time_mib[2] = i;
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if (sysctl(cpu_time_mib, 3, &cpu_times[i], &size, NULL, 0) < 0)
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return;
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for (j = 0; j < CPU_STATES; j++)
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total += cpu_times[i].cs_time[j];
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idle = cpu_times[i].cs_time[CP_IDLE];
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core = eina_list_nth(cores, i);
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diff_total = total - core->total;
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diff_idle = idle - core->idle;
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core->total = total;
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core->idle = idle;
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if (diff_total == 0) diff_total = 1;
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double ratio = diff_total / 100;
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unsigned long used = diff_total - diff_idle;
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int percent = used / ratio;
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core->percent = percent;
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percent_all += (int)percent;
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total_all += total;
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idle_all += core->idle;
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*prev_total = (total_all / ncpu);
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*prev_idle = (idle_all / ncpu);
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*prev_percent = (percent_all / ncpu) + (percent_all % ncpu);
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}
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#endif
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}
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