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annotate lib/gethrxtime.h @ 5848:a48fb0e98c8c

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author Paul Eggert <eggert@cs.ucla.edu>
date Sat, 14 May 2005 06:03:57 +0000
parents 42df9db003cc
children d39411e1c5e6
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1 /* gethrxtime -- get high resolution real time
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2
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3 Copyright (C) 2005 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 2, or (at your option)
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8 any later version.
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9
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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, write to the Free Software Foundation,
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17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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18
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19 /* Written by Paul Eggert. */
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20
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21 #ifndef GETHRXTIME_H_
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22 #define GETHRXTIME_H_ 1
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23
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24 #include "xtime.h"
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26 /* Get the current time, as a count of the number of nanoseconds since
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27 an arbitrary epoch (e.g., the system boot time). This clock can't
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28 be set, is always increasing, and is nearly linear. */
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29
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30 #if HAVE_ARITHMETIC_HRTIME_T && HAVE_DECL_GETHRTIME
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31 # include <time.h>
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32 static inline xtime_t gethrxtime (void) { return gethrtime (); }
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33 #else
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34 xtime_t gethrxtime (void);
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35 #endif
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36
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37 #endif