root/maint/gnulib/tests/test-usleep.c

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DEFINITIONS

This source file includes following definitions.
  1. main

   1 /* Test of usleep() function.
   2    Copyright (C) 2009-2021 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 Eric Blake <ebb9@byu.net>, 2009.  */
  18 
  19 #include <config.h>
  20 
  21 #include <unistd.h>
  22 
  23 #include "signature.h"
  24 SIGNATURE_CHECK (usleep, int, (useconds_t));
  25 
  26 #include <time.h>
  27 
  28 #include "macros.h"
  29 
  30 int
  31 main (void)
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  32 {
  33   time_t start = time (NULL);
  34   ASSERT (usleep (1000000) == 0);
  35   ASSERT (start < time (NULL));
  36 
  37   ASSERT (usleep (0) == 0);
  38 
  39   return 0;
  40 }

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