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annotate lib/gethrxtime.h @ 17249:e542fd46ad6f

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maint: update all copyright year number ranges Run "make update-copyright". Compare to commit 1602f0a from last year. Signed-off-by: Eric Blake <eblake@redhat.com>
author Eric Blake <eblake@redhat.com>
date Tue, 01 Jan 2013 00:50:58 +0000
parents fe213f3f2c57
children
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1 /* gethrxtime -- get high resolution real time
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2
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3 Copyright (C) 2005, 2009-2013 Free Software Foundation, Inc.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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18 /* Written by Paul Eggert. */
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20 #ifndef GETHRXTIME_H_
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21 #define GETHRXTIME_H_ 1
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22
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23 #include "xtime.h"
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25 _GL_INLINE_HEADER_BEGIN
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26 #ifndef GETHRXTIME_INLINE
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27 # define GETHRXTIME_INLINE _GL_INLINE
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28 #endif
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30 #ifdef __cplusplus
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31 extern "C" {
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32 #endif
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33
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34 /* Get the current time, as a count of the number of nanoseconds since
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35 an arbitrary epoch (e.g., the system boot time). Prefer a
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36 high-resolution clock that is not subject to resetting or
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37 drifting. */
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38
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39 #if HAVE_ARITHMETIC_HRTIME_T && HAVE_DECL_GETHRTIME
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40 # include <time.h>
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41 GETHRXTIME_INLINE xtime_t gethrxtime (void) { return gethrtime (); }
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42 # else
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43 xtime_t gethrxtime (void);
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44 #endif
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45
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46 _GL_INLINE_HEADER_END
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47
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48 #ifdef __cplusplus
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49 }
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50 #endif
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51
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52 #endif