Mercurial > hg > octave-kai > gnulib-hg
annotate lib/timespec.h @ 5662:42df9db003cc
* modules/gethrxtime: New file.
* modules/xnanosleep (Files): Add m4/xnanosleep.m4.
(Depends-on): Add gethrxtime.
(configure.ac): Add gl_XNANOSLEEP.
(Makefile.am): Remove lib_SOURCES line.
* lib/gethrxtime.h, lib/gethrxtime.c, lib/xtime.h: New files.
* lib/timespec.h (gettime): Return void, since it always
succeeds now. All uses changed.
* lib/gettime.c (gettime) Likewise.
[HAVE_NANOTIME]: Prefer nanotime.
Assume gettimeofday succeeds, as POSIX requires.
Assime time () succeeds, since other code already does.
* lib/xnanosleep.c: Include xtime.h and gethrxtime.h, not xalloc.h.
(timespec_subtract): Remove.
(NANOSLEEP_BUG_WORKAROUND): New constant.
(xnanosleep): Use gethrxtime rather than gettime; this simplifies
things considerably. Use it only on GNU/Linux hosts, since the
workaround shouldn't be needed elsewhere.
* m4/gethrxtime.m4, m4/xnanosleep.m4: New files.
* m4/gettime.m4 (gl_GETTIME): Check for nanotime.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Sat, 26 Feb 2005 08:18:27 +0000 |
| parents | 87e3af7a44df |
| children | a48fb0e98c8c |
| rev | line source |
|---|---|
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Jim Meyering <jim@meyering.net>
parents:
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1 /* timespec -- System time interface |
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2 |
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* modules/gethrxtime: New file.
Paul Eggert <eggert@cs.ucla.edu>
parents:
4989
diff
changeset
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3 Copyright (C) 2000, 2002, 2004, 2005 Free Software Foundation, Inc. |
| 3765 | 4 |
| 5 This program is free software; you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 2, or (at your option) | |
| 8 any later version. | |
| 9 | |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 16 along with this program; if not, write to the Free Software Foundation, | |
| 17 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
| 18 | |
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19 #if ! defined TIMESPEC_H |
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20 # define TIMESPEC_H |
| 3765 | 21 |
| 22 /* You must include config.h before including this file. */ | |
| 23 | |
| 24 # include <sys/types.h> | |
| 25 # if TIME_WITH_SYS_TIME | |
| 26 # include <sys/time.h> | |
| 27 # include <time.h> | |
| 28 # else | |
| 29 # if HAVE_SYS_TIME_H | |
| 30 # include <sys/time.h> | |
| 31 # else | |
| 32 # include <time.h> | |
| 33 # endif | |
| 34 # endif | |
| 35 | |
| 36 # if ! HAVE_STRUCT_TIMESPEC | |
| 37 /* Some systems don't define this struct, e.g., AIX 4.1, Ultrix 4.3. */ | |
| 38 struct timespec | |
| 39 { | |
| 40 time_t tv_sec; | |
| 41 long tv_nsec; | |
| 42 }; | |
| 43 # endif | |
| 44 | |
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45 # ifdef ST_MTIM_NSEC |
| 4989 | 46 # define ST_TIME_CMP_NS(a, b, ns) ((a).ns < (b).ns ? -1 : (a).ns > (b).ns) |
| 47 # else | |
| 48 # define ST_TIME_CMP_NS(a, b, ns) 0 | |
| 49 # endif | |
| 50 # define ST_TIME_CMP(a, b, s, ns) \ | |
| 51 ((a).s < (b).s ? -1 : (a).s > (b).s ? 1 : ST_TIME_CMP_NS(a, b, ns)) | |
| 52 # define ATIME_CMP(a, b) ST_TIME_CMP (a, b, st_atime, st_atim.ST_MTIM_NSEC) | |
| 53 # define CTIME_CMP(a, b) ST_TIME_CMP (a, b, st_ctime, st_ctim.ST_MTIM_NSEC) | |
| 54 # define MTIME_CMP(a, b) ST_TIME_CMP (a, b, st_mtime, st_mtim.ST_MTIM_NSEC) | |
| 55 | |
| 56 # ifdef ST_MTIM_NSEC | |
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57 # define TIMESPEC_NS(timespec) ((timespec).ST_MTIM_NSEC) |
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58 # else |
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59 # define TIMESPEC_NS(timespec) 0 |
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60 # endif |
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61 |
| 3765 | 62 # if ! HAVE_DECL_NANOSLEEP |
| 63 /* Don't specify a prototype here. Some systems (e.g., OSF) declare | |
| 64 nanosleep with a conflicting one (const-less first parameter). */ | |
| 65 int nanosleep (); | |
| 66 # endif | |
| 67 | |
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5662
42df9db003cc
* modules/gethrxtime: New file.
Paul Eggert <eggert@cs.ucla.edu>
parents:
4989
diff
changeset
|
68 void gettime (struct timespec *); |
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Jim Meyering <jim@meyering.net>
parents:
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changeset
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69 int settime (struct timespec const *); |
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parents:
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70 |
| 3765 | 71 #endif |