1// boost/chrono/thread_clock.hpp -----------------------------------------------------------//
2
3// Copyright 2009-2011 Vicente J. Botet Escriba
4
5// Distributed under the Boost Software License, Version 1.0.
6// See http://www.boost.org/LICENSE_1_0.txt
7
8// See http://www.boost.org/libs/system for documentation.
9
10#include <boost/chrono/config.hpp>
11
12#ifndef BOOST_CHRONO_THREAD_CLOCK_HPP
13#define BOOST_CHRONO_THREAD_CLOCK_HPP
14
15#if defined(BOOST_CHRONO_HAS_THREAD_CLOCK)
16
17#include <boost/chrono/config.hpp>
18#include <boost/chrono/duration.hpp>
19#include <boost/chrono/time_point.hpp>
20#include <boost/chrono/detail/system.hpp>
21#include <boost/chrono/clock_string.hpp>
22
23#ifndef BOOST_CHRONO_HEADER_ONLY
24#include <boost/config/abi_prefix.hpp> // must be the last #include
25#endif
26
27namespace boost { namespace chrono {
28
29class BOOST_CHRONO_DECL thread_clock {
30public:
31 typedef nanoseconds duration;
32 typedef duration::rep rep;
33 typedef duration::period period;
34 typedef chrono::time_point<thread_clock> time_point;
35 BOOST_STATIC_CONSTEXPR bool is_steady = BOOST_CHRONO_THREAD_CLOCK_IS_STEADY;
36
37 static BOOST_CHRONO_INLINE time_point now( ) BOOST_NOEXCEPT;
38#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
39 static BOOST_CHRONO_INLINE time_point now( system::error_code & ec );
40#endif
41};
42
43template <class CharT>
44struct clock_string<thread_clock, CharT>
45{
46 static std::basic_string<CharT> name()
47 {
48 static const CharT u[] =
49 { 't', 'h', 'r', 'e', 'a', 'd', '_',
50 'c', 'l','o', 'c', 'k'};
51 static const std::basic_string<CharT> str(u, u + sizeof(u)/sizeof(u[0]));
52 return str;
53 }
54 static std::basic_string<CharT> since()
55 {
56 const CharT u[] =
57 { ' ', 's', 'i', 'n', 'c', 'e', ' ', 't', 'h', 'r', 'e', 'a', 'd', ' ', 's', 't', 'a', 'r', 't', '-', 'u', 'p'};
58 const std::basic_string<CharT> str(u, u + sizeof(u)/sizeof(u[0]));
59 return str;
60 }
61};
62
63} // namespace chrono
64} // namespace boost
65
66
67#ifndef BOOST_CHRONO_HEADER_ONLY
68#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
69#else
70#include <boost/chrono/detail/inlined/thread_clock.hpp>
71#endif
72
73#endif
74
75#endif // BOOST_CHRONO_THREAD_CLOCK_HPP
76

source code of boost/libs/chrono/include/boost/chrono/thread_clock.hpp