Davide Pesavento
72 lines
2.6 KiB
C++
72 lines
2.6 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2014-2018, Regents of the University of California,
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* Arizona Board of Regents,
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* Colorado State University,
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* University Pierre & Marie Curie, Sorbonne University,
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* Washington University in St. Louis,
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* Beijing Institute of Technology,
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* The University of Memphis.
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*
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* This file is part of NFD (Named Data Networking Forwarding Daemon).
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* See AUTHORS.md for complete list of NFD authors and contributors.
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*
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* NFD is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later version.
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*
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* NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "logger.hpp"
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#ifdef HAVE_CUSTOM_LOGGER
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#error "This file should not be compiled when custom logger is used"
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#endif
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#include <cinttypes>
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#include <cstdlib>
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#include <stdio.h>
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#include <type_traits>
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#include <ndn-cxx/util/time.hpp>
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namespace nfd {
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Logger::Logger(const std::string& name, LogLevel level)
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: m_moduleName(name)
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, m_enabledLogLevel(level)
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{
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}
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std::ostream&
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operator<<(std::ostream& os, const LoggerTimestamp&)
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{
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using namespace ndn::time;
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const auto sinceEpoch = system_clock::now().time_since_epoch();
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BOOST_ASSERT(sinceEpoch.count() >= 0);
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// use abs() to silence truncation warning in snprintf(), see #4365
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const auto usecs = std::abs(duration_cast<microseconds>(sinceEpoch).count());
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const auto usecsPerSec = microseconds::period::den;
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// 10 (whole seconds) + '.' + 6 (fraction) + '\0'
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char buffer[10 + 1 + 6 + 1];
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BOOST_ASSERT_MSG(usecs / usecsPerSec <= 9999999999, "whole seconds cannot fit in 10 characters");
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static_assert(std::is_same<microseconds::rep, int_least64_t>::value,
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"PRIdLEAST64 is incompatible with microseconds::rep");
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// std::snprintf unavailable on some platforms, see #2299
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::snprintf(buffer, sizeof(buffer), "%" PRIdLEAST64 ".%06" PRIdLEAST64,
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usecs / usecsPerSec, usecs % usecsPerSec);
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return os << buffer;
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}
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} // namespace nfd
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