VNFs/DPPD-PROX/tools/flow_extract/timestamp.cpp

   1 /*
   2 // Copyright (c) 2010-2017 Intel Corporation
   3 //
   4 // Licensed under the Apache License, Version 2.0 (the "License");
   5 // you may not use this file except in compliance with the License.
   6 // You may obtain a copy of the License at
   7 //
   8 //     http://www.apache.org/licenses/LICENSE-2.0
   9 //
  10 // Unless required by applicable law or agreed to in writing, software
  11 // distributed under the License is distributed on an "AS IS" BASIS,
  12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 // See the License for the specific language governing permissions and
  14 // limitations under the License.
  15 */
  16
  17 #include <cstdio>
  18 #include <iostream>
  19 #include <iomanip>
  20
  21 #include "timestamp.hpp"
  22
  23 Timestamp Timestamp::operator-(const Timestamp& other) const
  24 {
  25         uint64_t sec;
  26         uint64_t nsec;
  27
  28         if (other.m_nsec <= m_nsec) {
  29                 nsec = m_nsec - other.m_nsec;
  30                 sec = m_sec - other.m_sec;
  31         } else {
  32                 nsec = (1000000000 + m_nsec) - other.m_nsec;
  33                 sec = m_sec - 1 - other.m_sec;
  34         }
  35
  36         return Timestamp(sec, nsec);
  37 }
  38
  39 bool Timestamp::operator>(const Timestamp& other)
  40 {
  41         return m_sec > other.m_sec ||
  42                 (m_sec == other.m_sec && m_nsec > other.m_nsec);
  43 }
  44
  45 bool Timestamp::operator<(const Timestamp& other)
  46 {
  47         return m_sec < other.m_sec ||
  48                 (m_sec == other.m_sec && m_nsec < other.m_nsec);
  49 }
  50
  51 ostream& operator<<(ostream& stream, const Timestamp& ts)
  52 {
  53         stream << ts.m_sec << "." << setw(9) << setfill('0') << ts.m_nsec;
  54         return stream;
  55 }
  56
  57 double operator/(double d, const Timestamp &denominator)
  58 {
  59         return d * 1000000000 / (denominator.m_sec * 1000000000 + denominator.m_nsec);
  60 }
  61
  62 bool Timestamp::operator==(const Timestamp &other) const
  63 {
  64         return m_sec == other.m_sec && m_nsec == other.m_nsec;
  65 }