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 // Return current time.  This is the implementation of time.now().
  10
  11 struct time_now_ret
  12 {
  13   int64_t sec;
  14   int32_t nsec;
  15 };
  16
  17 struct time_now_ret now()
  18   __asm__ ("libgo_time.time.now")
  19   __attribute__ ((no_split_stack));
  20
  21 struct time_now_ret
  22 now()
  23 {
  24   struct timeval tv;
  25   struct time_now_ret ret;
  26
  27   gettimeofday (&tv, NULL);
  28   ret.sec = tv.tv_sec;
  29   ret.nsec = tv.tv_usec * 1000;
  30   return ret;
  31 }