mirror of https://github.com/dzavalishin/oskit/
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
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/*
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* Copyright (c) 1996, 1998, 1999 University of Utah and the Flux Group.
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* All rights reserved.
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*
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* This file is part of the Flux OSKit. The OSKit is free software, also known
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* as "open source;" you can redistribute it and/or modify it under the terms
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* of the GNU General Public License (GPL), version 2, as published by the Free
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* Software Foundation (FSF). To explore alternate licensing terms, contact
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* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
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*
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* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
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* received a copy of the GPL along with the OSKit; see the file COPYING. If
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* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
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*/
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#include <threads/pthread_internal.h>
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/*
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* Switch to another thread. This is the *only* external interface.
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*/
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void
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sched_yield(void)
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{
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assert_preemption_enabled();
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/*
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* Let scheduler module decide what to do and actually do it.
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*/
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pthread_sched_reschedule(RESCHED_USERYIELD, (spin_lock_t *) 0);
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}
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/*
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* Internal interfaces. This is called whenever the runq is changed to
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* look for a rescheduling opportunity.
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*/
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void
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pthread_yield(void)
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{
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assert_preemption_enabled();
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/*
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* Let scheduler module decide what to do and actually do it.
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*/
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pthread_sched_reschedule(RESCHED_YIELD, (spin_lock_t *) 0);
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}
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/*
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* This version is called from the preemption code so that a time preemption
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* can be distinguished from a voluntary yield.
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*/
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void
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pthread_preempt(void)
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{
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assert_preemption_enabled();
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assert_interrupts_disabled();
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/*
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* Let scheduler module decide what to do ...
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*/
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pthread_sched_reschedule(RESCHED_PREEMPT, (spin_lock_t *) 0);
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}
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