projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // boost thread_clock.cpp -----------------------------------------------------------// |
| 2 | ||
| 3 | // Copyright Beman Dawes 1994, 2006, 2008 | |
| 4 | // Copyright Vicente J. Botet Escriba 2009-2011 | |
| 5 | // Copyright Christopher Brown 2013 | |
| 6 | ||
| 7 | // Distributed under the Boost Software License, Version 1.0. | |
| 8 | // See http://www.boost.org/LICENSE_1_0.txt | |
| 9 | ||
| 10 | // See http://www.boost.org/libs/chrono for documentation. | |
| 11 | ||
| 12 | //--------------------------------------------------------------------------------------// | |
| 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 <pthread.h> | |
| 20 | # include <mach/thread_act.h> | |
| 21 | ||
| 22 | namespace boost { namespace chrono { | |
| 23 | ||
| 24 | thread_clock::time_point thread_clock::now( ) BOOST_NOEXCEPT | |
| 25 | { | |
| 26 | // get the thread port (borrowing pthread's reference) | |
| 27 | mach_port_t port = pthread_mach_thread_np(pthread_self()); | |
| 28 | ||
| 29 | // get the thread info | |
| 30 | thread_basic_info_data_t info; | |
| 31 | mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT; | |
| 32 | if ( thread_info(port, THREAD_BASIC_INFO, (thread_info_t)&info, &count) != KERN_SUCCESS ) | |
| 33 | { | |
| 34 | BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); | |
| 35 | return time_point(); | |
| 36 | } | |
| 37 | ||
| 38 | // convert to nanoseconds | |
| 39 | duration user = duration( | |
| 40 | static_cast<thread_clock::rep>( info.user_time.seconds ) * 1000000000 | |
| 41 | + static_cast<thread_clock::rep>(info.user_time.microseconds ) * 1000); | |
| 42 | ||
| 43 | duration system = duration( | |
| 44 | static_cast<thread_clock::rep>( info.system_time.seconds ) * 1000000000 | |
| 45 | + static_cast<thread_clock::rep>( info.system_time.microseconds ) * 1000); | |
| 46 | ||
| 47 | return time_point( user + system ); | |
| 48 | } | |
| 49 | ||
| 50 | #if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING | |
| 51 | thread_clock::time_point thread_clock::now( system::error_code & ec ) | |
| 52 | { | |
| 53 | // get the thread port (borrowing pthread's reference) | |
| 54 | mach_port_t port = pthread_mach_thread_np(pthread_self()); | |
| 55 | ||
| 56 | // get the thread info | |
| 57 | thread_basic_info_data_t info; | |
| 58 | mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT; | |
| 59 | if ( thread_info(port, THREAD_BASIC_INFO, (thread_info_t)&info, &count) != KERN_SUCCESS ) | |
| 60 | { | |
| 92f5a8d4 | 61 | if (::boost::chrono::is_throws(ec)) |
| 7c673cae FG |
62 | { |
| 63 | boost::throw_exception( | |
| 64 | system::system_error( | |
| 65 | EINVAL, | |
| 92f5a8d4 | 66 | ::boost::system::system_category(), |
| 7c673cae FG |
67 | "chrono::thread_clock" )); |
| 68 | } | |
| 69 | else | |
| 70 | { | |
| 92f5a8d4 | 71 | ec.assign( errno, ::boost::system::system_category() ); |
| 7c673cae FG |
72 | return time_point(); |
| 73 | } | |
| 74 | } | |
| 92f5a8d4 | 75 | if (!::boost::chrono::is_throws(ec)) |
| 7c673cae FG |
76 | { |
| 77 | ec.clear(); | |
| 78 | } | |
| 79 | ||
| 80 | // convert to nanoseconds | |
| 81 | duration user = duration( | |
| 82 | static_cast<thread_clock::rep>( info.user_time.seconds ) * 1000000000 | |
| 83 | + static_cast<thread_clock::rep>(info.user_time.microseconds ) * 1000); | |
| 84 | ||
| 85 | duration system = duration( | |
| 86 | static_cast<thread_clock::rep>( info.system_time.seconds ) * 1000000000 | |
| 87 | + static_cast<thread_clock::rep>( info.system_time.microseconds ) * 1000); | |
| 88 | ||
| 89 | return time_point( user + system ); | |
| 90 | } | |
| 91 | #endif | |
| 92 | } } |