libgo/runtime/go-now.c

   1 // Copyright 2011 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 #include <stddef.h>
   6 #include <stdint.h>
   7 #include <sys/time.h>
   8
   9 #include "runtime.h"
  10
  11 // Return current time.  This is the implementation of time.walltime().
  12
  13 struct walltime_ret
  14 {
  15   int64_t sec;
  16   int32_t nsec;
  17 };
  18
  19 struct walltime_ret now() __asm__ (GOSYM_PREFIX "runtime.walltime")
  20   __attribute__ ((no_split_stack));
  21
  22 struct walltime_ret
  23 now()
  24 {
  25   struct timespec ts;
  26   struct walltime_ret ret;
  27
  28   clock_gettime (CLOCK_REALTIME, &ts);
  29   ret.sec = ts.tv_sec;
  30   ret.nsec = ts.tv_nsec;
  31   return ret;
  32 }