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Diffstat (limited to 'indexlib/boost-compat/config/posix_features.h')
| -rw-r--r-- | indexlib/boost-compat/config/posix_features.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/indexlib/boost-compat/config/posix_features.h b/indexlib/boost-compat/config/posix_features.h new file mode 100644 index 000000000..4afb476b7 --- /dev/null +++ b/indexlib/boost-compat/config/posix_features.h @@ -0,0 +1,87 @@ +// (C) Copyright John Maddock 2001 - 2003. +// Use, modification and distribution are subject to the +// Boost Software License, Version 1.0. (See accompanying file +// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + + +// See http://www.boost.org for most recent version. + +// All POSIX feature tests go in this file, +// Note that we test _POSIX_C_SOURCE and _XOPEN_SOURCE as well +// _POSIX_VERSION and _XOPEN_VERSION: on some systems POSIX API's +// may be present but none-functional unless _POSIX_C_SOURCE and +// _XOPEN_SOURCE have been defined to the right value (it's up +// to the user to do this *before* including any header, although +// in most cases the compiler will do this for you). + +# if defined(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 version 2 requires <dirent.h> +# if defined(_POSIX_VERSION) && (_POSIX_VERSION >= 199009L) +# define BOOST_HAS_DIRENT_H +# endif + + // POSIX version 3 requires <signal.h> to have sigaction: +# if defined(_POSIX_VERSION) && (_POSIX_VERSION >= 199506L) +# define BOOST_HAS_SIGACTION +# 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) && !defined(BOOST_HAS_MPTASKS) +# 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 +# if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE+0 >= 500) +# define BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE +# endif +# endif + +# endif + + + |