usr/src/lib/libc/i386/sys/__clock_gettime.c

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11
  12 /*
  13  * Copyright 2016 Joyent, Inc.
  14  */
  15
  16
  17
  18 #include "thr_uberdata.h"
  19 #include <cp_defs.h>
  20
  21 extern int __clock_gettime_sys(clockid_t, timespec_t *);
  22
  23 int
  24 __clock_gettime(clockid_t clock_id, timespec_t *tp)
  25 {
  26         comm_page_t *cp = (comm_page_t *)__uberdata.ub_comm_page;
  27
  28         if (cp != NULL && __cp_can_gettime(cp) != 0) {
  29                 switch (clock_id) {
  30                 case __CLOCK_REALTIME0:
  31                 case CLOCK_REALTIME:
  32                         return (__cp_clock_gettime_realtime(cp, tp));
  33
  34                 case CLOCK_MONOTONIC:
  35                         return (__cp_clock_gettime_monotonic(cp, tp));
  36
  37                 default:
  38                         /* Fallback */
  39                         break;
  40                 }
  41         }
  42         return (__clock_gettime_sys(clock_id, tp));
  43 }