sysdeps/pthread/tst-join3.c

   1 /* Copyright (C) 2002-2024 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library 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 GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <pthread.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <sys/time.h>
  24 #include <support/check.h>
  25 #include <support/timespec.h>
  26 #include <support/xthread.h>
  27 #include <support/xtime.h>
  28
  29
  30 #define CLOCK_USE_TIMEDJOIN (-1)
  31
  32 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
  33
  34
  35 static void *
  36 tf (void *arg)
  37 {
  38   xpthread_mutex_lock (&lock);
  39   xpthread_mutex_unlock (&lock);
  40
  41   return (void *) 42l;
  42 }
  43
  44
  45 static int
  46 do_test_clock (clockid_t clockid)
  47 {
  48   const clockid_t clockid_for_get =
  49     (clockid == CLOCK_USE_TIMEDJOIN) ? CLOCK_REALTIME : clockid;
  50
  51   xpthread_mutex_lock (&lock);
  52   pthread_t th = xpthread_create (NULL, tf, NULL);
  53
  54   void *status;
  55   struct timespec timeout = timespec_add (xclock_now (clockid_for_get),
  56                                           make_timespec (0, 200000000));
  57
  58   int val;
  59   if (clockid == CLOCK_USE_TIMEDJOIN)
  60     val = pthread_timedjoin_np (th, &status, &timeout);
  61   else
  62     val = pthread_clockjoin_np (th, &status, clockid, &timeout);
  63
  64   TEST_COMPARE (val, ETIMEDOUT);
  65
  66   xpthread_mutex_unlock (&lock);
  67
  68   while (1)
  69     {
  70       timeout = timespec_add (xclock_now (clockid_for_get),
  71                               make_timespec (0, 200000000));
  72
  73       if (clockid == CLOCK_USE_TIMEDJOIN)
  74         val = pthread_timedjoin_np (th, &status, &timeout);
  75       else
  76         val = pthread_clockjoin_np (th, &status, clockid, &timeout);
  77       if (val == 0)
  78         break;
  79
  80       TEST_COMPARE (val, ETIMEDOUT);
  81     }
  82
  83   if (status != (void *) 42l)
  84     FAIL_EXIT1 ("return value %p, expected %p\n", status, (void *) 42l);
  85
  86   return 0;
  87 }
  88
  89 static int
  90 do_test (void)
  91 {
  92   do_test_clock (CLOCK_USE_TIMEDJOIN);
  93   do_test_clock (CLOCK_REALTIME);
  94   do_test_clock (CLOCK_MONOTONIC);
  95   return 0;
  96 }
  97
  98 #include <support/test-driver.c>