diff options
Diffstat (limited to 'boost/chrono/detail/inlined/mac/thread_clock.hpp')
-rw-r--r-- | boost/chrono/detail/inlined/mac/thread_clock.hpp | 80 |
1 files changed, 78 insertions, 2 deletions
diff --git a/boost/chrono/detail/inlined/mac/thread_clock.hpp b/boost/chrono/detail/inlined/mac/thread_clock.hpp index dad806e4e2..1a4406b83d 100644 --- a/boost/chrono/detail/inlined/mac/thread_clock.hpp +++ b/boost/chrono/detail/inlined/mac/thread_clock.hpp @@ -1,6 +1,8 @@ // boost thread_clock.cpp -----------------------------------------------------------// -// Copyright Vicente J. Botet Escriba 2010 +// Copyright Beman Dawes 1994, 2006, 2008 +// Copyright Vicente J. Botet Escriba 2009-2011 +// Copyright Christopher Brown 2013 // Distributed under the Boost Software License, Version 1.0. // See http://www.boost.org/LICENSE_1_0.txt @@ -10,6 +12,80 @@ //--------------------------------------------------------------------------------------// #include <boost/chrono/config.hpp> -#include <boost/chrono/detail/inlined/posix/thread_clock.hpp> +#include <boost/chrono/thread_clock.hpp> #include <cassert> +# include <pthread.h> +# include <mach/thread_act.h> + +namespace boost { namespace chrono { + + thread_clock::time_point thread_clock::now( ) BOOST_NOEXCEPT + { + // get the thread port (borrowing pthread's reference) + mach_port_t port = pthread_mach_thread_np(pthread_self()); + + // get the thread info + thread_basic_info_data_t info; + mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT; + if ( thread_info(port, THREAD_BASIC_INFO, (thread_info_t)&info, &count) != KERN_SUCCESS ) + { + BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); + return time_point(); + } + + // convert to nanoseconds + duration user = duration( + static_cast<thread_clock::rep>( info.user_time.seconds ) * 1000000000 + + static_cast<thread_clock::rep>(info.user_time.microseconds ) * 1000); + + duration system = duration( + static_cast<thread_clock::rep>( info.system_time.seconds ) * 1000000000 + + static_cast<thread_clock::rep>( info.system_time.microseconds ) * 1000); + + return time_point( user + system ); + } + +#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING + thread_clock::time_point thread_clock::now( system::error_code & ec ) + { + // get the thread port (borrowing pthread's reference) + mach_port_t port = pthread_mach_thread_np(pthread_self()); + + // get the thread info + thread_basic_info_data_t info; + mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT; + if ( thread_info(port, THREAD_BASIC_INFO, (thread_info_t)&info, &count) != KERN_SUCCESS ) + { + if (BOOST_CHRONO_IS_THROWS(ec)) + { + boost::throw_exception( + system::system_error( + EINVAL, + BOOST_CHRONO_SYSTEM_CATEGORY, + "chrono::thread_clock" )); + } + else + { + ec.assign( errno, BOOST_CHRONO_SYSTEM_CATEGORY ); + return time_point(); + } + } + if (!BOOST_CHRONO_IS_THROWS(ec)) + { + ec.clear(); + } + + // convert to nanoseconds + duration user = duration( + static_cast<thread_clock::rep>( info.user_time.seconds ) * 1000000000 + + static_cast<thread_clock::rep>(info.user_time.microseconds ) * 1000); + + duration system = duration( + static_cast<thread_clock::rep>( info.system_time.seconds ) * 1000000000 + + static_cast<thread_clock::rep>( info.system_time.microseconds ) * 1000); + + return time_point( user + system ); + } +#endif +} } |