mirror of https://github.com/sipwise/rtpengine.git
58 lines
1.4 KiB
58 lines
1.4 KiB
#include "load.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <glib.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include "helpers.h"
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#include "log.h"
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#include "main.h"
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int load_average; // times 100
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int cpu_usage; // percent times 100 (0 - 9999)
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static long used_last, idle_last;
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enum thread_looper_action load_thread(void) {
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// anything to do?
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if (!rtpe_config.load_limit && !rtpe_config.cpu_limit)
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return TLA_BREAK;
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if (rtpe_config.load_limit) {
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double loadavg;
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if (getloadavg(&loadavg, 1) >= 1)
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g_atomic_int_set(&load_average, (int) (loadavg * 100.0));
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else
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ilog(LOG_WARN, "Failed to obtain load average: %s", strerror(errno));
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}
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if (rtpe_config.cpu_limit) {
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FILE *f;
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f = fopen("/proc/stat", "r");
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if (f) {
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long user_now, nice_now, system_now, idle_now;
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if (fscanf(f, "cpu %li %li %li %li",
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&user_now, &nice_now, &system_now, &idle_now) == 4)
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{
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long used_now = user_now + nice_now + system_now;
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long used_secs = used_now - used_last;
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long idle_secs = idle_now - idle_last;
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long total_secs = used_secs + idle_secs;
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if (total_secs > 0 && used_last && idle_last)
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g_atomic_int_set(&cpu_usage, (int) (used_secs
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* 10000 / total_secs));
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used_last = used_now;
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idle_last = idle_now;
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}
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else
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ilog(LOG_WARN, "Failed to obtain CPU usage");
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fclose(f);
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}
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}
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return TLA_CONTINUE;
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}
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