diff options
Diffstat (limited to 'lib/timespec.h')
-rw-r--r-- | lib/timespec.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/lib/timespec.h b/lib/timespec.h new file mode 100644 index 000000000000..2c32a23db425 --- /dev/null +++ b/lib/timespec.h @@ -0,0 +1,71 @@ +/* timespec -- System time interface + + Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc. + + This program 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 2, or (at your option) + any later version. + + This program 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. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if ! defined TIMESPEC_H +# define TIMESPEC_H + +/* You must include config.h before including this file. */ + +# include <sys/types.h> +# if TIME_WITH_SYS_TIME +# include <sys/time.h> +# include <time.h> +# else +# if HAVE_SYS_TIME_H +# include <sys/time.h> +# else +# include <time.h> +# endif +# endif + +# if ! HAVE_STRUCT_TIMESPEC +/* Some systems don't define this struct, e.g., AIX 4.1, Ultrix 4.3. */ +struct timespec +{ + time_t tv_sec; + long tv_nsec; +}; +# endif + +# ifdef ST_MTIM_NSEC +# define ST_TIME_CMP_NS(a, b, ns) ((a).ns < (b).ns ? -1 : (a).ns > (b).ns) +# else +# define ST_TIME_CMP_NS(a, b, ns) 0 +# endif +# define ST_TIME_CMP(a, b, s, ns) \ + ((a).s < (b).s ? -1 : (a).s > (b).s ? 1 : ST_TIME_CMP_NS(a, b, ns)) +# define ATIME_CMP(a, b) ST_TIME_CMP (a, b, st_atime, st_atim.ST_MTIM_NSEC) +# define CTIME_CMP(a, b) ST_TIME_CMP (a, b, st_ctime, st_ctim.ST_MTIM_NSEC) +# define MTIME_CMP(a, b) ST_TIME_CMP (a, b, st_mtime, st_mtim.ST_MTIM_NSEC) + +# ifdef ST_MTIM_NSEC +# define TIMESPEC_NS(timespec) ((timespec).ST_MTIM_NSEC) +# else +# define TIMESPEC_NS(timespec) 0 +# endif + +# if ! HAVE_DECL_NANOSLEEP +/* Don't specify a prototype here. Some systems (e.g., OSF) declare + nanosleep with a conflicting one (const-less first parameter). */ +int nanosleep (); +# endif + +int gettime (struct timespec *); +int settime (struct timespec const *); + +#endif |