1 /* Test of timespec_get() function. 2 Copyright (C) 2021 Free Software Foundation, Inc. 3 4 This program is free software: you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 3 of the License, or 7 (at your option) any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 16 17 /* Written by Bruno Haible. */ 18 19 #include <config.h> 20 21 #include <time.h> 22 23 #include "signature.h" 24 SIGNATURE_CHECK (timespec_get, int, (struct timespec *ts, int base)); 25 26 #include "macros.h" 27 28 int 29 main (void) /* */ 30 { 31 struct timespec ts1; 32 time_t tt2; 33 struct timespec ts3; 34 time_t tt4; 35 36 ASSERT (timespec_get (&ts1, TIME_UTC)); 37 tt2 = time (NULL); 38 ASSERT (timespec_get (&ts3, TIME_UTC)); 39 tt4 = time (NULL); 40 41 /* Verify monotonicity of timespec_get(). */ 42 ASSERT (ts1.tv_sec < ts3.tv_sec 43 || (ts1.tv_sec == ts3.tv_sec && ts1.tv_nsec <= ts3.tv_nsec)); 44 45 /* Verify monotonicity of time(). */ 46 ASSERT (tt2 <= tt4); 47 48 /* Verify that the tv_sec field of the result is the same as time(NULL). */ 49 ASSERT (ts1.tv_sec <= tt2); 50 ASSERT (tt2 <= ts3.tv_sec); 51 ASSERT (ts3.tv_sec <= tt4); 52 53 return 0; 54 }