| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/coreutils/src/gnulib/lib/gethrxtime.c |
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| 1 | /* gethrxtime -- get high resolution real time | - | ||||||
| 2 | - | |||||||
| 3 | Copyright (C) 2005-2007, 2009-2018 Free Software Foundation, Inc. | - | ||||||
| 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 3 of the License, or | - | ||||||
| 8 | (at your option) 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, see <https://www.gnu.org/licenses/>. */ | - | ||||||
| 17 | - | |||||||
| 18 | /* Written by Paul Eggert. */ | - | ||||||
| 19 | - | |||||||
| 20 | #include <config.h> | - | ||||||
| 21 | - | |||||||
| 22 | #define GETHRXTIME_INLINE _GL_EXTERN_INLINE | - | ||||||
| 23 | #include "gethrxtime.h" | - | ||||||
| 24 | - | |||||||
| 25 | #if ! (HAVE_ARITHMETIC_HRTIME_T && HAVE_DECL_GETHRTIME) | - | ||||||
| 26 | - | |||||||
| 27 | #include <sys/time.h> | - | ||||||
| 28 | #include "timespec.h" | - | ||||||
| 29 | - | |||||||
| 30 | /* Get the current time, as a count of the number of nanoseconds since | - | ||||||
| 31 | an arbitrary epoch (e.g., the system boot time). Prefer a | - | ||||||
| 32 | high-resolution clock that is not subject to resetting or | - | ||||||
| 33 | drifting. */ | - | ||||||
| 34 | - | |||||||
| 35 | xtime_t | - | ||||||
| 36 | gethrxtime (void) | - | ||||||
| 37 | { | - | ||||||
| 38 | # if HAVE_NANOUPTIME | - | ||||||
| 39 | { | - | ||||||
| 40 | struct timespec ts; | - | ||||||
| 41 | nanouptime (&ts); | - | ||||||
| 42 | return xtime_make (ts.tv_sec, ts.tv_nsec); | - | ||||||
| 43 | } | - | ||||||
| 44 | # else | - | ||||||
| 45 | - | |||||||
| 46 | # if defined CLOCK_MONOTONIC && HAVE_CLOCK_GETTIME | - | ||||||
| 47 | { | - | ||||||
| 48 | struct timespec ts; | - | ||||||
| 49 | if (clock_gettime (CLOCK_MONOTONIC, &ts) == 0)
| 0-778 | ||||||
| 50 | return xtime_make (ts.tv_sec, ts.tv_nsec); executed 778 times by 1 test: return xtime_make (ts.tv_sec, ts.tv_nsec);Executed by:
| 778 | ||||||
| 51 | } | - | ||||||
| 52 | # endif | - | ||||||
| 53 | - | |||||||
| 54 | # if HAVE_MICROUPTIME | - | ||||||
| 55 | { | - | ||||||
| 56 | struct timeval tv; | - | ||||||
| 57 | microuptime (&tv); | - | ||||||
| 58 | return xtime_make (tv.tv_sec, 1000 * tv.tv_usec); | - | ||||||
| 59 | } | - | ||||||
| 60 | - | |||||||
| 61 | # else | - | ||||||
| 62 | /* No monotonically increasing clocks are available; fall back on a | - | ||||||
| 63 | clock that might jump backwards, since it's the best we can do. */ | - | ||||||
| 64 | { | - | ||||||
| 65 | struct timespec ts; | - | ||||||
| 66 | gettime (&ts); | - | ||||||
| 67 | return xtime_make (ts.tv_sec, ts.tv_nsec); never executed: return xtime_make (ts.tv_sec, ts.tv_nsec); | 0 | ||||||
| 68 | } | - | ||||||
| 69 | # endif | - | ||||||
| 70 | # endif | - | ||||||
| 71 | } | - | ||||||
| 72 | - | |||||||
| 73 | #endif | - | ||||||
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