nptl/tst-abstime.c

   1 /* Copyright (C) 2010-2019 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Andreas Schwab <schwab@redhat.com>, 2010.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <pthread.h>
  21 #include <semaphore.h>
  22 #include <stdio.h>
  23
  24 static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
  25 static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;
  26 static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;
  27 static pthread_rwlock_t rw1 = PTHREAD_RWLOCK_INITIALIZER;
  28 static pthread_rwlock_t rw2 = PTHREAD_RWLOCK_INITIALIZER;
  29 static sem_t sem;
  30
  31 static void *
  32 th (void *arg)
  33 {
  34   long int res = 0;
  35   int r;
  36   struct timespec t = { -2, 0 };
  37
  38   r = pthread_mutex_timedlock (&m1, &t);
  39   if (r != ETIMEDOUT)
  40     {
  41       puts ("pthread_mutex_timedlock did not return ETIMEDOUT");
  42       res = 1;
  43     }
  44   r = pthread_rwlock_timedrdlock (&rw1, &t);
  45   if (r != ETIMEDOUT)
  46     {
  47       puts ("pthread_rwlock_timedrdlock did not return ETIMEDOUT");
  48       res = 1;
  49     }
  50   r = pthread_rwlock_timedwrlock (&rw2, &t);
  51   if (r != ETIMEDOUT)
  52     {
  53       puts ("pthread_rwlock_timedwrlock did not return ETIMEDOUT");
  54       res = 1;
  55     }
  56   return (void *) res;
  57 }
  58
  59 static int
  60 do_test (void)
  61 {
  62   int res = 0;
  63   int r;
  64   struct timespec t = { -2, 0 };
  65   pthread_t pth;
  66
  67   sem_init (&sem, 0, 0);
  68   r = sem_timedwait (&sem, &t);
  69   if (r != -1 || errno != ETIMEDOUT)
  70     {
  71       puts ("sem_timedwait did not fail with ETIMEDOUT");
  72       res = 1;
  73     }
  74
  75   pthread_mutex_lock (&m1);
  76   pthread_rwlock_wrlock (&rw1);
  77   pthread_rwlock_rdlock (&rw2);
  78   pthread_mutex_lock (&m2);
  79   if (pthread_create (&pth, 0, th, 0) != 0)
  80     {
  81       puts ("cannot create thread");
  82       return 1;
  83     }
  84   r = pthread_cond_timedwait (&c, &m2, &t);
  85   if (r != ETIMEDOUT)
  86     {
  87       puts ("pthread_cond_timedwait did not return ETIMEDOUT");
  88       res = 1;
  89     }
  90   void *thres;
  91   pthread_join (pth, &thres);
  92   return res | (thres != NULL);
  93 }
  94
  95
  96 #define TEST_FUNCTION do_test ()
  97 #include "../test-skeleton.c"