nptl/tst-sched1.c

   1 /* Copyright (C) 2003-2017 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <stdio.h>
  21 #include <unistd.h>
  22 #include <sys/types.h>
  23
  24
  25 static int global;
  26
  27 static void *
  28 tf (void *a)
  29 {
  30   global = 1;
  31
  32   return 0;
  33 }
  34
  35
  36 int
  37 do_test (void)
  38 {
  39   pthread_t th;
  40   pthread_attr_t at;
  41
  42   if (pthread_attr_init (&at) != 0)
  43     {
  44       puts ("attr_init failed");
  45       return 1;
  46     }
  47
  48   if (pthread_attr_setschedpolicy (&at, SCHED_OTHER) != 0)
  49     {
  50       puts ("attr_setschedpolicy failed");
  51       return 1;
  52     }
  53
  54   struct sched_param pa;
  55   if (sched_getparam (getpid (), &pa) != 0)
  56     {
  57       puts ("sched_getschedparam failed");
  58       return 1;
  59     }
  60
  61   if (pthread_attr_setschedparam (&at, &pa) != 0)
  62     {
  63       puts ("attr_setschedparam failed");
  64       return 1;
  65     }
  66
  67   if (pthread_attr_setinheritsched (&at, PTHREAD_EXPLICIT_SCHED) != 0)
  68     {
  69       puts ("attr_setinheritsched failed");
  70       return 1;
  71     }
  72
  73   if (pthread_create (&th, &at, tf, NULL) != 0)
  74     {
  75       puts ("create failed");
  76       return 1;
  77     }
  78
  79   int e = pthread_join (th, NULL);
  80   if (e != 0)
  81     {
  82       printf ("join failed: %d\n", e);
  83       return 1;
  84     }
  85
  86   if (global == 0)
  87     {
  88       puts ("thread didn't run");
  89       return 1;
  90     }
  91
  92   return 0;
  93 }
  94
  95
  96 #define TEST_FUNCTION do_test ()
  97 #include "../test-skeleton.c"