110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
#include "cpumonitor.h"
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int
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_cpumonitor_proc_getcores(void)
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{
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char buf[4096], *tok;
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FILE *f;
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int cores = 0, i = 0;
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f = fopen("/proc/stat", "r");
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if (f)
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{
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while (fgets(buf, sizeof(buf), f))
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{
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if (i > 0)
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{
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tok = strtok(buf, " ");
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if (!strncmp(tok, "cpu", 3))
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cores++;
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else
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break;
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}
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i++;
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}
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fclose (f);
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}
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return cores;
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}
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void
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_cpumonitor_proc_getusage(Instance *inst)
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{
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int k = 0, j = 0;
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char buf[4096];
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FILE *f;
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CPU_Core *core;
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f = fopen("/proc/stat", "r");
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if (f)
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{
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while (fgets(buf, sizeof(buf), f))
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{
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if (k == 0)
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{
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long total = 0, idle = 0, use = 0, total_change = 0, idle_change = 0;
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int percent = 0;
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char *line, *tok;
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int i = 0;
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line = strchr(buf, ' ')+1;
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tok = strtok(line, " ");
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while (tok)
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{
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use = atol(tok);
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total += use;
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i++;
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if (i == 4)
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idle = use;
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tok = strtok(NULL, " ");
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}
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total_change = total - inst->cfg->cpumonitor.total;
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idle_change = idle - inst->cfg->cpumonitor.idle;
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if (total_change != 0)
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percent = 100 * (1 - ((float)idle_change / (float)total_change));
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if (percent > 100) percent = 100;
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else if (percent < 0) percent = 0;
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inst->cfg->cpumonitor.total = total;
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inst->cfg->cpumonitor.idle = idle;
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inst->cfg->cpumonitor.percent = percent;
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}
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if (k > 0)
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{
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long total = 0, idle = 0, use = 0, total_change = 0, idle_change = 0;
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int percent = 0;
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if (!strncmp(buf, "cpu", 3))
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{
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char *line, *tok;
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int i = 0;
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line = strchr(buf, ' ');
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tok = strtok(line, " ");
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while (tok)
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{
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use = atol(tok);
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total += use;
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i++;
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if (i == 4)
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idle = use;
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tok = strtok(NULL, " ");
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}
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}
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else break;
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core = eina_list_nth(inst->cfg->cpumonitor.cores, j);
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total_change = total - core->total;
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idle_change = idle - core->idle;
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if (total_change != 0)
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percent = 100 * (1 - ((float)idle_change / (float)total_change));
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if (percent > 100) percent = 100;
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else if (percent < 0) percent = 0;
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core->percent = percent;
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core->total = total;
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core->idle = idle;
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j++;
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}
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k++;
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}
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fclose(f);
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}
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}
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