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Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [src/] [chrono.cc] - Rev 516
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// chrono -*- C++ -*- // Copyright (C) 2008, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. #include <chrono> #ifdef _GLIBCXX_USE_C99_STDINT_TR1 // conditional inclusion of sys/time.h for gettimeofday #if !defined(_GLIBCXX_USE_CLOCK_MONOTONIC) && \ !defined(_GLIBCXX_USE_CLOCK_REALTIME) && \ defined(_GLIBCXX_USE_GETTIMEOFDAY) #include <sys/time.h> #endif namespace std { namespace chrono { const bool system_clock::is_monotonic; system_clock::time_point system_clock::now() throw () { #ifdef _GLIBCXX_USE_CLOCK_REALTIME timespec tp; // -EINVAL, -EFAULT clock_gettime(CLOCK_REALTIME, &tp); return time_point(duration(chrono::seconds(tp.tv_sec) + chrono::nanoseconds(tp.tv_nsec))); #elif defined(_GLIBCXX_USE_GETTIMEOFDAY) timeval tv; // EINVAL, EFAULT gettimeofday(&tv, NULL); return time_point(duration(chrono::seconds(tv.tv_sec) + chrono::microseconds(tv.tv_usec))); #else std::time_t __sec = std::time(0); return system_clock::from_time_t(__sec); #endif } #ifdef _GLIBCXX_USE_CLOCK_MONOTONIC const bool monotonic_clock::is_monotonic; monotonic_clock::time_point monotonic_clock::now() { timespec tp; // -EINVAL, -EFAULT clock_gettime(CLOCK_MONOTONIC, &tp); return time_point(duration(chrono::seconds(tp.tv_sec) + chrono::nanoseconds(tp.tv_nsec))); } #endif } } #endif // _GLIBCXX_USE_C99_STDINT_TR1