mirror of
https://github.com/mfontanini/libtins
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127 lines
3.6 KiB
C++
127 lines
3.6 KiB
C++
/*
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* Copyright (c) 2014, Matias Fontanini
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef TINS_TIMESTAMP_H
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#define TINS_TIMESTAMP_H
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#ifdef _WIN32
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#include <winsock2.h>
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#else
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#include <sys/time.h>
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#endif
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#include "cxxstd.h"
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#if TINS_IS_CXX11
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#include <chrono>
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#endif
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namespace Tins {
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/**
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* \brief Represents a packet timestamp.
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*/
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class Timestamp {
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public:
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#ifdef _WIN32
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typedef long seconds_type;
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typedef long microseconds_type;
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#else
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typedef time_t seconds_type;
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typedef suseconds_t microseconds_type;
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#endif
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/**
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* \brief Constructs a Timestamp which will hold the current time.
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*/
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static Timestamp current_time() {
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#ifdef _WIN32
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//fixme
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return Timestamp();
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#else
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timeval tv;
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gettimeofday(&tv, 0);
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return tv;
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#endif
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}
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/**
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* Default constructs the timestamp.
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*/
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Timestamp() : tv() {}
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#if TINS_IS_CXX11
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/**
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* Constructs a Timestamp from a std::chrono::duration.
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*/
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template<typename Rep, typename Period>
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Timestamp(const std::chrono::duration<Rep, Period>& ts) {
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using std::chrono::duration_cast;
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using std::chrono::microseconds;
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using std::chrono::seconds;
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tv.tv_sec = duration_cast<seconds>(ts).count();
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tv.tv_usec = duration_cast<microseconds>(
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ts - seconds(tv.tv_sec)).count();
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}
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#endif
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/**
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* Constructs a timestamp from a timeval object.
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* \param time_val The timeval object.
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*/
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Timestamp(const timeval &time_val) : tv(time_val) {}
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/**
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* Returns the amount of seconds in this timestamp.
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*/
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seconds_type seconds() const {
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return tv.tv_sec;
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}
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/**
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* Returns the amount of microseconds in this timestamp.
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*/
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microseconds_type microseconds() const {
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return tv.tv_usec;
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}
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#if TINS_IS_CXX11
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/**
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* Converts this Timestamp to a std::chrono::microseconds
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*/
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operator std::chrono::microseconds() const {
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return std::chrono::seconds(seconds()) +
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std::chrono::microseconds(microseconds());
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}
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#endif
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private:
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timeval tv;
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};
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}
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#endif // TINS_TIMESTAMP_H
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