1  /* Check pthread_clockjoin_np clock support.
       2     Copyright (C) 2020-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       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 <pthread.h>
      20  #include <sys/time.h>
      21  #include <unistd.h>
      22  #include <errno.h>
      23  
      24  #include <array_length.h>
      25  #include <support/check.h>
      26  #include <support/timespec.h>
      27  #include <support/xthread.h>
      28  
      29  static void *
      30  tf (void *arg)
      31  {
      32    pause ();
      33    return NULL;
      34  }
      35  
      36  
      37  static int
      38  do_test (void)
      39  {
      40    const clockid_t clocks[] = {
      41      CLOCK_REALTIME,
      42      CLOCK_MONOTONIC,
      43      CLOCK_PROCESS_CPUTIME_ID,
      44      CLOCK_THREAD_CPUTIME_ID,
      45      CLOCK_THREAD_CPUTIME_ID,
      46      CLOCK_MONOTONIC_RAW,
      47      CLOCK_REALTIME_COARSE,
      48      CLOCK_MONOTONIC_COARSE,
      49  #ifdef CLOCK_BOOTTIME
      50      CLOCK_BOOTTIME,
      51  #endif
      52  #ifdef CLOCK_REALTIME_ALARM
      53      CLOCK_REALTIME_ALARM,
      54  #endif
      55  #ifdef CLOCK_BOOTTIME_ALARM
      56      CLOCK_BOOTTIME_ALARM,
      57  #endif
      58  #ifdef CLOCK_TAI
      59      CLOCK_TAI
      60  #endif
      61    };
      62  
      63    pthread_t thr = xpthread_create (NULL, tf, NULL);
      64  
      65    for (int t = 0; t < array_length (clocks); t++)
      66      {
      67        /* Create a valid timeout to check for ETIMEDOUT on valid clocks.  */
      68        struct timespec tmo;
      69        if (clock_gettime (clocks[t], &tmo) == -1)
      70  	/* For clocks not supported, create a large timeout (it should
      71  	   fail early with EINVAL).  */
      72  	tmo = make_timespec (-1, 0);
      73        else
      74  	tmo = timespec_add (tmo, make_timespec (0, 100000000));
      75  
      76        int ret = clocks[t] == CLOCK_REALTIME || clocks[t] == CLOCK_MONOTONIC
      77  		? ETIMEDOUT : EINVAL;
      78  
      79        TEST_COMPARE (pthread_clockjoin_np (thr, NULL, clocks[t], &tmo), ret);
      80      }
      81  
      82    return 0;
      83  }
      84  
      85  #include <support/test-driver.c>