blob: 07e7f3442f2dcf3eb7604131a74c13b0e7e790c0 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (C) 2014 Named Data Networking Project
* See COPYING for copyright and distribution information.
*/
#include "common.hpp"
#include "time.hpp"
#include <time.h>
#include <stdexcept>
#include <sys/time.h>
namespace ndn {
namespace time {
Point
now()
{
// based on suggestion from https://svn.boost.org/trac/boost/ticket/3504
#if defined(_POSIX_TIMERS) && ( _POSIX_TIMERS > 0 ) && defined(_POSIX_MONOTONIC_CLOCK)
struct timespec t;
int res = clock_gettime(CLOCK_MONOTONIC, &t);
if (res == -1) {
throw std::runtime_error("clock_gettime");
}
return Point(time::seconds(t.tv_sec) + time::nanoseconds(t.tv_nsec));
#else
// fallback to wall clock time
struct timeval tv;
int res = gettimeofday(&tv, 0);
if (res == -1) {
throw std::runtime_error("gettimeofday");
}
return Point(time::seconds(tv.tv_sec) + time::microseconds(tv.tv_usec));
#endif
}
} // namespace time
} // namespace ndn