| // (C) Copyright Boost.org 2001. Permission to copy, use, modify, sell and |
| // distribute this software is granted provided this copyright notice appears |
| // in all copies. This software is provided "as is" without express or implied |
| // warranty, and with no claim as to its suitability for any purpose. |
| |
| // See http://www.boost.org for most recent version. |
| |
| // All POSIX feature tests go in this file: |
| |
| # ifdef BOOST_HAS_UNISTD_H |
| # include <unistd.h> |
| |
| // XOpen has <nl_types.h>, but is this the correct version check? |
| # if defined(_XOPEN_VERSION) && (_XOPEN_VERSION >= 3) |
| # define BOOST_HAS_NL_TYPES_H |
| # endif |
| |
| // POSIX version 6 requires <stdint.h> |
| # if defined(_POSIX_VERSION) && (_POSIX_VERSION >= 200100) |
| # define BOOST_HAS_STDINT_H |
| # endif |
| |
| // POSIX defines _POSIX_THREADS > 0 for pthread support, |
| // however some platforms define _POSIX_THREADS without |
| // a value, hence the (_POSIX_THREADS+0 >= 0) check. |
| // Strictly speaking this may catch platforms with a |
| // non-functioning stub <pthreads.h>, but such occurrences should |
| // occur very rarely if at all. |
| # if defined(_POSIX_THREADS) && (_POSIX_THREADS+0 >= 0) && !defined(BOOST_HAS_WINTHREADS) |
| # define BOOST_HAS_PTHREADS |
| # endif |
| |
| // BOOST_HAS_NANOSLEEP: |
| // This is predicated on _POSIX_TIMERS or _XOPEN_REALTIME: |
| # if (defined(_POSIX_TIMERS) && (_POSIX_TIMERS+0 >= 0)) \ |
| || (defined(_XOPEN_REALTIME) && (_XOPEN_REALTIME+0 >= 0)) |
| # define BOOST_HAS_NANOSLEEP |
| # endif |
| |
| // BOOST_HAS_CLOCK_GETTIME: |
| // This is predicated on _POSIX_TIMERS (also on _XOPEN_REALTIME |
| // but at least one platform - linux - defines that flag without |
| // defining clock_gettime): |
| # if (defined(_POSIX_TIMERS) && (_POSIX_TIMERS+0 >= 0)) |
| # define BOOST_HAS_CLOCK_GETTIME |
| # endif |
| |
| // BOOST_HAS_SCHED_YIELD: |
| // This is predicated on _POSIX_PRIORITY_SCHEDULING or |
| // on _POSIX_THREAD_PRIORITY_SCHEDULING or on _XOPEN_REALTIME. |
| # if defined(_POSIX_PRIORITY_SCHEDULING) && (_POSIX_PRIORITY_SCHEDULING+0 > 0)\ |
| || (defined(_POSIX_THREAD_PRIORITY_SCHEDULING) && (_POSIX_THREAD_PRIORITY_SCHEDULING+0 > 0))\ |
| || (defined(_XOPEN_REALTIME) && (_XOPEN_REALTIME+0 >= 0)) |
| # define BOOST_HAS_SCHED_YIELD |
| # endif |
| |
| // BOOST_HAS_GETTIMEOFDAY: |
| // BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE: |
| // These are predicated on _XOPEN_VERSION, and appears to be first released |
| // in issue 4, version 2 (_XOPEN_VERSION > 500). |
| # if defined(_XOPEN_VERSION) && (_XOPEN_VERSION+0 >= 500) |
| # define BOOST_HAS_GETTIMEOFDAY |
| # define BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE |
| # endif |
| |
| # endif |
