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comparison src/getloadavg.c @ 280:7df0dd720c89 r21-0b38

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Import from CVS: tag r21-0b38
author cvs
date Mon, 13 Aug 2007 10:32:22 +0200
parents 90d73dddcdc4
children c42ec1d1cded
comparison
equal deleted inserted replaced
279:c20b2fb5bb0a 280:7df0dd720c89
523 #define LDAV_DONE 523 #define LDAV_DONE
524 /* Set errno to zero to indicate that there was no particular error; 524 /* Set errno to zero to indicate that there was no particular error;
525 this function just can't work at all on this system. */ 525 this function just can't work at all on this system. */
526 errno = 0; 526 errno = 0;
527 elem = -2; 527 elem = -2;
528 #endif 528 #endif /* NO_GET_LOAD_AVG */
529 529
530 #if ! defined (LDAV_DONE) && defined (HAVE_KSTAT_H) && defined (HAVE_LIBKSTAT) 530 #if ! defined (LDAV_DONE) && defined (HAVE_KSTAT_H) && defined (HAVE_LIBKSTAT)
531 #define LDAV_DONE 531 #define LDAV_DONE
532 /* getloadavg is best implemented using kstat (kernel stats), on 532 /* getloadavg is best implemented using kstat (kernel stats), on
533 systems (like SunOS5) that support it, since you don't need special 533 systems (like SunOS5) that support it, since you don't need special
544 "avenrun_15min" }; 544 "avenrun_15min" };
545 545
546 if (nelem > countof (avestrings)) 546 if (nelem > countof (avestrings))
547 nelem = countof (avestrings); 547 nelem = countof (avestrings);
548 548
549 kc = kstat_open(); 549 kc = kstat_open ();
550 if (!kc) 550 if (!kc)
551 return -1; 551 return -1;
552 ksp = kstat_lookup (kc, "unix", 0, "system_misc"); 552 ksp = kstat_lookup (kc, "unix", 0, "system_misc");
553 if (!ksp) 553 if (!ksp)
554 { 554 {
566 if (!kn) 566 if (!kn)
567 { 567 {
568 kstat_close (kc); 568 kstat_close (kc);
569 return -1; 569 return -1;
570 } 570 }
571 loadavg[elem] = (double)kn->value.ul/FSCALE; 571 loadavg[elem] = (double)kn->value.ul / FSCALE;
572 } 572 }
573 kstat_close (kc); 573 kstat_close (kc);
574 #endif /* HAVE_KSTAT_H && HAVE_LIBKSTAT */ 574 #endif /* HAVE_KSTAT_H && HAVE_LIBKSTAT */
575 575
576 #if !defined (LDAV_DONE) && defined (HAVE_SYS_PSTAT_H) 576 #if !defined (LDAV_DONE) && defined (HAVE_SYS_PSTAT_H)
941 loadavg[elem++] = LDAV_CVT (load_ave[2]); 941 loadavg[elem++] = LDAV_CVT (load_ave[2]);
942 942
943 #define LDAV_DONE 943 #define LDAV_DONE
944 #endif /* !LDAV_DONE && LOAD_AVE_TYPE */ 944 #endif /* !LDAV_DONE && LOAD_AVE_TYPE */
945 945
946 #ifdef LDAV_DONE
947 return elem; 946 return elem;
948 #else
949 /* Set errno to zero to indicate that there was no particular error;
950 this function just can't work at all on this system. */
951 errno = 0;
952 return -2;
953 #endif
954 } 947 }
955 948
956 #endif /* ! HAVE_GETLOADAVG */ 949 #endif /* ! HAVE_GETLOADAVG */
957 950
958 #ifdef TEST 951 #ifdef TEST