sysdeps/pthread/tst-join3.c

   1 /* Copyright (C) 2002-2021 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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 <string.h>
  24 #include <sys/time.h>
  25 #include <support/check.h>
  26 #include <support/timespec.h>
  27 #include <support/xthread.h>
  28 #include <support/xtime.h>
  29
  30
  31 #define CLOCK_USE_TIMEDJOIN (-1)
  32
  33 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
  34
  35
  36 static void *
  37 tf (void *arg)
  38 {
  39   xpthread_mutex_lock (&lock);
  40   xpthread_mutex_unlock (&lock);
  41
  42   return (void *) 42l;
  43 }
  44
  45
  46 static int
  47 do_test_clock (clockid_t clockid)
  48 {
  49   const clockid_t clockid_for_get =
  50     (clockid == CLOCK_USE_TIMEDJOIN) ? CLOCK_REALTIME : clockid;
  51
  52   xpthread_mutex_lock (&lock);
  53   pthread_t th = xpthread_create (NULL, tf, NULL);
  54
  55   void *status;
  56   struct timespec timeout = timespec_add (xclock_now (clockid_for_get),
  57                                           make_timespec (0, 200000000));
  58
  59   int val;
  60   if (clockid == CLOCK_USE_TIMEDJOIN)
  61     val = pthread_timedjoin_np (th, &status, &timeout);
  62   else
  63     val = pthread_clockjoin_np (th, &status, clockid, &timeout);
  64
  65   TEST_COMPARE (val, ETIMEDOUT);
  66
  67   xpthread_mutex_unlock (&lock);
  68
  69   while (1)
  70     {
  71       timeout = timespec_add (xclock_now (clockid_for_get),
  72                               make_timespec (0, 200000000));
  73
  74       if (clockid == CLOCK_USE_TIMEDJOIN)
  75         val = pthread_timedjoin_np (th, &status, &timeout);
  76       else
  77         val = pthread_clockjoin_np (th, &status, clockid, &timeout);
  78       if (val == 0)
  79         break;
  80
  81       TEST_COMPARE (val, ETIMEDOUT);
  82     }
  83
  84   if (status != (void *) 42l)
  85     FAIL_EXIT1 ("return value %p, expected %p\n", status, (void *) 42l);
  86
  87   return 0;
  88 }
  89
  90 static int
  91 do_test (void)
  92 {
  93   do_test_clock (CLOCK_USE_TIMEDJOIN);
  94   do_test_clock (CLOCK_REALTIME);
  95   do_test_clock (CLOCK_MONOTONIC);
  96   return 0;
  97 }
  98
  99 #include <support/test-driver.c>