src/OS/os.c-OSF1

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 2001 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* OSF1-specific code. This is concatenated onto the generic src/os.c file.
   9 OSF1 has an apparently unique way of getting the load average, so we provide a
  10 unique function here, and define OS_LOAD_AVERAGE to stop src/os.c trying to
  11 provide the function. The macro may be set initially anyway, when compiling os.
  12 for utilities that don't want this function. */
  13
  14 #ifndef OS_LOAD_AVERAGE
  15 #define OS_LOAD_AVERAGE
  16
  17 #include <sys/table.h>
  18
  19 int
  20 os_getloadavg(void)
  21 {
  22 double avg;
  23 struct tbl_loadavg load_avg;
  24
  25 table (TBL_LOADAVG, 0, &load_avg, 1, sizeof (load_avg));
  26
  27 avg = (load_avg.tl_lscale == 0)?
  28   load_avg.tl_avenrun.d[0] :
  29   (load_avg.tl_avenrun.l[0] / (double)load_avg.tl_lscale);
  30
  31 return (int)(avg * 1000.0);
  32 }
  33
  34 #endif  /* OS_LOAD_AVERAGE */
  35
  36 /* End of os.c-OSF1 */