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 | ||
| 6 | // Distributed under the Boost Software License, Version 1.0. | |
| 7 | // See http://www.boost.org/LICENSE_1_0.txt | |
| 8 | ||
| 9 | // See http://www.boost.org/libs/chrono for documentation. | |
| 10 | ||
| 11 | //--------------------------------------------------------------------------------------// | |
| 12 | ||
| 13 | #include <boost/chrono/config.hpp> | |
| 14 | #include <boost/chrono/thread_clock.hpp> | |
| 15 | #include <cassert> | |
| 16 | #include <boost/assert.hpp> | |
| 17 | ||
| 18 | #if !defined(__VXWORKS__) | |
| 19 | # include <sys/times.h> | |
| 20 | #endif | |
| 21 | # include <pthread.h> | |
| 22 | # include <unistd.h> | |
| 23 | ||
| 24 | namespace boost { namespace chrono { | |
| 25 | ||
| 26 | thread_clock::time_point thread_clock::now( ) BOOST_NOEXCEPT | |
| 27 | { | |
| 28 | struct timespec ts; | |
| 29 | #if defined CLOCK_THREAD_CPUTIME_ID | |
| 30 | // get the timespec associated to the thread clock | |
| 31 | if ( ::clock_gettime( CLOCK_THREAD_CPUTIME_ID, &ts ) ) | |
| 32 | #else | |
| 33 | // get the current thread | |
| 34 | pthread_t pth=pthread_self(); | |
| 35 | // get the clock_id associated to the current thread | |
| 36 | clockid_t clock_id; | |
| 37 | pthread_getcpuclockid(pth, &clock_id); | |
| 38 | // get the timespec associated to the thread clock | |
| 39 | if ( ::clock_gettime( clock_id, &ts ) ) | |
| 40 | #endif | |
| 41 | { | |
| 42 | BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); | |
| 43 | } | |
| 44 | ||
| 45 | // transform to nanoseconds | |
| 46 | return time_point(duration( | |
| 47 | static_cast<thread_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec)); | |
| 48 | ||
| 49 | } | |
| 50 | ||
| 51 | #if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING | |
| 52 | thread_clock::time_point thread_clock::now( system::error_code & ec ) | |
| 53 | { | |
| 54 | struct timespec ts; | |
| 55 | #if defined CLOCK_THREAD_CPUTIME_ID | |
| 56 | // get the timespec associated to the thread clock | |
| 57 | if ( ::clock_gettime( CLOCK_THREAD_CPUTIME_ID, &ts ) ) | |
| 58 | #else | |
| 59 | // get the current thread | |
| 60 | pthread_t pth=pthread_self(); | |
| 61 | // get the clock_id associated to the current thread | |
| 62 | clockid_t clock_id; | |
| 63 | pthread_getcpuclockid(pth, &clock_id); | |
| 64 | // get the timespec associated to the thread clock | |
| 65 | if ( ::clock_gettime( clock_id, &ts ) ) | |
| 66 | #endif | |
| 67 | { | |
| 92f5a8d4 | 68 | if (::boost::chrono::is_throws(ec)) |
| 7c673cae FG |
69 | { |
| 70 | boost::throw_exception( | |
| 71 | system::system_error( | |
| 72 | errno, | |
| 92f5a8d4 | 73 | ::boost::system::system_category(), |
| 7c673cae FG |
74 | "chrono::thread_clock" )); |
| 75 | } | |
| 76 | else | |
| 77 | { | |
| 92f5a8d4 | 78 | ec.assign( errno, ::boost::system::system_category() ); |
| 7c673cae FG |
79 | return time_point(); |
| 80 | } | |
| 81 | } | |
| 92f5a8d4 | 82 | if (!::boost::chrono::is_throws(ec)) |
| 7c673cae FG |
83 | { |
| 84 | ec.clear(); | |
| 85 | } | |
| 86 | // transform to nanoseconds | |
| 87 | return time_point(duration( | |
| 88 | static_cast<thread_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec)); | |
| 89 | ||
| 90 | } | |
| 91 | #endif | |
| 92 | } } |