projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // boost thread_clock.cpp -----------------------------------------------------------// |
| 2 | ||
| 3 | // Copyright 2010 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/chrono for documentation. | |
| 9 | ||
| 10 | //--------------------------------------------------------------------------------------// | |
| 11 | #ifndef BOOST_CHRONO_DETAIL_INLINED_WIN_THREAD_CLOCK_HPP | |
| 12 | #define BOOST_CHRONO_DETAIL_INLINED_WIN_THREAD_CLOCK_HPP | |
| 13 | ||
| 14 | #include <boost/chrono/config.hpp> | |
| 15 | #include <boost/chrono/thread_clock.hpp> | |
| 16 | #include <cassert> | |
| 17 | #include <boost/assert.hpp> | |
| 18 | ||
| 19 | #include <boost/detail/winapi/get_last_error.hpp> | |
| 20 | #include <boost/detail/winapi/get_current_thread.hpp> | |
| 21 | #include <boost/detail/winapi/get_thread_times.hpp> | |
| 22 | ||
| 23 | namespace boost | |
| 24 | { | |
| 25 | namespace chrono | |
| 26 | { | |
| 27 | ||
| 28 | #if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING | |
| 29 | thread_clock::time_point thread_clock::now( system::error_code & ec ) | |
| 30 | { | |
| 31 | // note that Windows uses 100 nanosecond ticks for FILETIME | |
| 32 | boost::detail::winapi::FILETIME_ creation, exit, user_time, system_time; | |
| 33 | ||
| 34 | if ( boost::detail::winapi::GetThreadTimes( | |
| 35 | boost::detail::winapi::GetCurrentThread (), &creation, &exit, | |
| 36 | &system_time, &user_time ) ) | |
| 37 | { | |
| 38 | duration user = duration( | |
| 39 | ((static_cast<duration::rep>(user_time.dwHighDateTime) << 32) | |
| 40 | | user_time.dwLowDateTime) * 100 ); | |
| 41 | ||
| 42 | duration system = duration( | |
| 43 | ((static_cast<duration::rep>(system_time.dwHighDateTime) << 32) | |
| 44 | | system_time.dwLowDateTime) * 100 ); | |
| 45 | ||
| 46 | if (!BOOST_CHRONO_IS_THROWS(ec)) | |
| 47 | { | |
| 48 | ec.clear(); | |
| 49 | } | |
| 50 | return time_point(system+user); | |
| 51 | ||
| 52 | } | |
| 53 | else | |
| 54 | { | |
| 55 | if (BOOST_CHRONO_IS_THROWS(ec)) | |
| 56 | { | |
| 57 | boost::throw_exception( | |
| 58 | system::system_error( | |
| 59 | boost::detail::winapi::GetLastError(), | |
| 60 | BOOST_CHRONO_SYSTEM_CATEGORY, | |
| 61 | "chrono::thread_clock" )); | |
| 62 | } | |
| 63 | else | |
| 64 | { | |
| 65 | ec.assign( boost::detail::winapi::GetLastError(), BOOST_CHRONO_SYSTEM_CATEGORY ); | |
| 66 | return thread_clock::time_point(duration(0)); | |
| 67 | } | |
| 68 | } | |
| 69 | } | |
| 70 | #endif | |
| 71 | ||
| 72 | thread_clock::time_point thread_clock::now() BOOST_NOEXCEPT | |
| 73 | { | |
| 74 | ||
| 75 | // note that Windows uses 100 nanosecond ticks for FILETIME | |
| 76 | boost::detail::winapi::FILETIME_ creation, exit, user_time, system_time; | |
| 77 | ||
| 78 | if ( boost::detail::winapi::GetThreadTimes( | |
| 79 | boost::detail::winapi::GetCurrentThread (), &creation, &exit, | |
| 80 | &system_time, &user_time ) ) | |
| 81 | { | |
| 82 | duration user = duration( | |
| 83 | ((static_cast<duration::rep>(user_time.dwHighDateTime) << 32) | |
| 84 | | user_time.dwLowDateTime) * 100 ); | |
| 85 | ||
| 86 | duration system = duration( | |
| 87 | ((static_cast<duration::rep>(system_time.dwHighDateTime) << 32) | |
| 88 | | system_time.dwLowDateTime) * 100 ); | |
| 89 | ||
| 90 | return time_point(system+user); | |
| 91 | } | |
| 92 | else | |
| 93 | { | |
| 94 | BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); | |
| 95 | return time_point(); | |
| 96 | } | |
| 97 | ||
| 98 | } | |
| 99 | ||
| 100 | } // namespace chrono | |
| 101 | } // namespace boost | |
| 102 | ||
| 103 | #endif |