1  /* Determine calling thread's scheduling parameters.  Linux version.
       2     Copyright (C) 2014-2023 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 Library General Public License as
       7     published by the Free Software Foundation; either version 2 of the
       8     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     Library General Public License for more details.
      14  
      15     You should have received a copy of the GNU Library General Public
      16     License along with the GNU C Library; see the file COPYING.LIB.  If
      17     not, see <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <sysdep.h>
      20  
      21  /* This should fill in PD->schedpolicy if PD->flags does not contain
      22     ATTR_FLAG_POLICY_SET, and set it; and PD->schedparam if PD->flags does
      23     not contain ATTR_FLAG_SCHED_SET, and set it.  It won't be called at all
      24     if both bits are already set.  */
      25  
      26  static void
      27  collect_default_sched (struct pthread *pd)
      28  {
      29    if ((pd->flags & ATTR_FLAG_POLICY_SET) == 0)
      30      {
      31        pd->schedpolicy = INTERNAL_SYSCALL_CALL (sched_getscheduler, 0);
      32        pd->flags |= ATTR_FLAG_POLICY_SET;
      33      }
      34  
      35    if ((pd->flags & ATTR_FLAG_SCHED_SET) == 0)
      36      {
      37        INTERNAL_SYSCALL_CALL (sched_getparam, 0, &pd->schedparam);
      38        pd->flags |= ATTR_FLAG_SCHED_SET;
      39      }
      40  }