git.sur5r.net Git - i3/i3status/blob - src/print_load.c

   1 // vim:ts=8:expandtab
   2 #include "i3status.h"
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include <string.h>
   6 #include <yajl/yajl_gen.h>
   7
   8 void print_load(yajl_gen json_gen, char *buffer, const char *format) {
   9         char *outwalk = buffer;
  10         /* Get load */
  11
  12 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(linux) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) || defined(sun)
  13         double loadavg[3];
  14         const char *walk;
  15
  16         if (getloadavg(loadavg, 3) == -1)
  17                 goto error;
  18
  19         for (walk = format; *walk != '\0'; walk++) {
  20                 if (*walk != '%') {
  21                         *(outwalk++) = *walk;
  22                         continue;
  23                 }
  24
  25                 if (BEGINS_WITH(walk+1, "1min")) {
  26                         outwalk += sprintf(outwalk, "%1.2f", loadavg[0]);
  27                         walk += strlen("1min");
  28                 }
  29
  30                 if (BEGINS_WITH(walk+1, "5min")) {
  31                         outwalk += sprintf(outwalk, "%1.2f", loadavg[1]);
  32                         walk += strlen("5min");
  33                 }
  34
  35                 if (BEGINS_WITH(walk+1, "15min")) {
  36                         outwalk += sprintf(outwalk, "%1.2f", loadavg[2]);
  37                         walk += strlen("15min");
  38                 }
  39         }
  40
  41         *outwalk = '\0';
  42         OUTPUT_FULL_TEXT(buffer);
  43
  44         return;
  45 error:
  46 #endif
  47         (void)fputs("Cannot read load\n", stderr);
  48 }