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 runtime.walltime().
      12  
      13  struct walltime_ret
      14  {
      15    int64_t sec;
      16    int32_t nsec;
      17  };
      18  
      19  struct walltime_ret now(void) __asm__ (GOSYM_PREFIX "runtime.walltime")
      20    __attribute__ ((no_split_stack));
      21  
      22  struct walltime_ret
      23  now(void)
      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  }