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43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/* Determine calling thread's scheduling parameters. Linux version.
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Copyright (C) 2014-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, see <http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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/* This should fill in PD->schedpolicy if PD->flags does not contain
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ATTR_FLAG_POLICY_SET, and set it; and PD->schedparam if PD->flags does
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not contain ATTR_FLAG_SCHED_SET, and set it. It won't be called at all
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if both bits are already set. */
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static void
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collect_default_sched (struct pthread *pd)
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{
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INTERNAL_SYSCALL_DECL (scerr);
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if ((pd->flags & ATTR_FLAG_POLICY_SET) == 0)
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{
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pd->schedpolicy = INTERNAL_SYSCALL (sched_getscheduler, scerr, 1, 0);
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pd->flags |= ATTR_FLAG_POLICY_SET;
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}
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if ((pd->flags & ATTR_FLAG_SCHED_SET) == 0)
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{
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INTERNAL_SYSCALL (sched_getparam, scerr, 2, 0, &pd->schedparam);
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pd->flags |= ATTR_FLAG_SCHED_SET;
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}
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}
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