/usr/include/asio/steady_timer.hpp is in libasio-dev 1:1.10.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | //
// steady_timer.hpp
// ~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2014 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef ASIO_STEADY_TIMER_HPP
#define ASIO_STEADY_TIMER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#if defined(ASIO_HAS_STD_CHRONO) \
|| defined(ASIO_HAS_BOOST_CHRONO) \
|| defined(GENERATING_DOCUMENTATION)
#if defined(ASIO_HAS_STD_CHRONO)
# include <chrono>
#elif defined(ASIO_HAS_BOOST_CHRONO)
# include <boost/chrono/system_clocks.hpp>
#endif
#include "asio/basic_waitable_timer.hpp"
namespace asio {
#if defined(GENERATING_DOCUMENTATION)
/// Typedef for a timer based on the steady clock.
/**
* This typedef uses the C++11 @c <chrono> standard library facility, if
* available. Otherwise, it may use the Boost.Chrono library. To explicitly
* utilise Boost.Chrono, use the basic_waitable_timer template directly:
* @code
* typedef basic_waitable_timer<boost::chrono::steady_clock> timer;
* @endcode
*/
typedef basic_waitable_timer<chrono::steady_clock> steady_timer;
#elif defined(ASIO_HAS_STD_CHRONO)
# if defined(ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
typedef basic_waitable_timer<std::chrono::monotonic_clock> steady_timer;
# else // defined(ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
typedef basic_waitable_timer<std::chrono::steady_clock> steady_timer;
# endif // defined(ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
#elif defined(ASIO_HAS_BOOST_CHRONO)
typedef basic_waitable_timer<boost::chrono::steady_clock> steady_timer;
#endif
} // namespace asio
#endif // defined(ASIO_HAS_STD_CHRONO)
// || defined(ASIO_HAS_BOOST_CHRONO)
// || defined(GENERATING_DOCUMENTATION)
#endif // ASIO_STEADY_TIMER_HPP
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