nptl/tst-rwlock14.c

   1 /* Copyright (C) 2004-2020 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
   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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <pthread.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <time.h>
  24 #include <support/check.h>
  25 #include <support/xthread.h>
  26 #include <support/xtime.h>
  27
  28
  29 static pthread_barrier_t b;
  30 static pthread_rwlock_t r = PTHREAD_RWLOCK_INITIALIZER;
  31
  32
  33 static void *
  34 tf (void *arg)
  35 {
  36   /* Lock the read-write lock.  */
  37   TEST_COMPARE (pthread_rwlock_wrlock (&r), 0);
  38
  39   pthread_t mt = *(pthread_t *) arg;
  40
  41   xpthread_barrier_wait (&b);
  42
  43   /* This call will never return.  */
  44   xpthread_join (mt);
  45
  46   return NULL;
  47 }
  48
  49
  50 static int
  51 do_test (void)
  52 {
  53   struct timespec ts;
  54
  55   xclock_gettime (CLOCK_REALTIME, &ts);
  56   xpthread_barrier_init (&b, NULL, 2);
  57
  58   pthread_t me = pthread_self ();
  59   xpthread_create (NULL, tf, &me);
  60
  61   /* Wait until the rwlock is locked.  */
  62   xpthread_barrier_wait (&b);
  63
  64   ts.tv_nsec = -1;
  65
  66   TEST_COMPARE (pthread_rwlock_timedrdlock (&r, &ts), EINVAL);
  67   TEST_COMPARE (pthread_rwlock_clockrdlock (&r, CLOCK_REALTIME, &ts), EINVAL);
  68   TEST_COMPARE (pthread_rwlock_clockrdlock (&r, CLOCK_MONOTONIC, &ts), EINVAL);
  69   TEST_COMPARE (pthread_rwlock_timedwrlock (&r, &ts), EINVAL);
  70   TEST_COMPARE (pthread_rwlock_clockwrlock (&r, CLOCK_REALTIME, &ts), EINVAL);
  71   TEST_COMPARE (pthread_rwlock_clockwrlock (&r, CLOCK_MONOTONIC, &ts), EINVAL);
  72
  73   ts.tv_nsec = 1000000000;
  74
  75   TEST_COMPARE (pthread_rwlock_timedrdlock (&r, &ts), EINVAL);
  76   TEST_COMPARE (pthread_rwlock_clockrdlock (&r, CLOCK_REALTIME, &ts), EINVAL);
  77   TEST_COMPARE (pthread_rwlock_clockrdlock (&r, CLOCK_MONOTONIC, &ts), EINVAL);
  78   TEST_COMPARE (pthread_rwlock_timedwrlock (&r, &ts), EINVAL);
  79   TEST_COMPARE (pthread_rwlock_clockwrlock (&r, CLOCK_REALTIME, &ts), EINVAL);
  80   TEST_COMPARE (pthread_rwlock_clockwrlock (&r, CLOCK_MONOTONIC, &ts), EINVAL);
  81
  82   ts.tv_nsec = (__typeof (ts.tv_nsec)) 0x100001000LL;
  83   if ((__typeof (ts.tv_nsec)) 0x100001000LL != 0x100001000LL)
  84     ts.tv_nsec = 2000000000;
  85
  86   TEST_COMPARE (pthread_rwlock_timedrdlock (&r, &ts), EINVAL);
  87   TEST_COMPARE (pthread_rwlock_clockrdlock (&r, CLOCK_REALTIME, &ts), EINVAL);
  88   TEST_COMPARE (pthread_rwlock_clockrdlock (&r, CLOCK_MONOTONIC, &ts), EINVAL);
  89   TEST_COMPARE (pthread_rwlock_timedwrlock (&r, &ts), EINVAL);
  90   TEST_COMPARE (pthread_rwlock_clockwrlock (&r, CLOCK_REALTIME, &ts), EINVAL);
  91   TEST_COMPARE (pthread_rwlock_clockwrlock (&r, CLOCK_MONOTONIC, &ts), EINVAL);
  92
  93   return 0;
  94 }
  95
  96 #include <support/test-driver.c>