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    /*	$OpenBSD: rthread_sched.c,v 1.14 2017/09/05 02:40:54 guenther Exp $ */  | 
    
    
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    /*  | 
    
    
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     * Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>  | 
    
    
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     * All Rights Reserved.  | 
    
    
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     *  | 
    
    
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     * Permission to use, copy, modify, and distribute this software for any  | 
    
    
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     * purpose with or without fee is hereby granted, provided that the above  | 
    
    
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     * copyright notice and this permission notice appear in all copies.  | 
    
    
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     *  | 
    
    
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     * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES  | 
    
    
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     * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF  | 
    
    
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     * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  | 
    
    
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     * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES  | 
    
    
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     * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN  | 
    
    
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     * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  | 
    
    
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     * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  | 
    
    
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     */  | 
    
    
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    /*  | 
    
    
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     * scheduling routines  | 
    
    
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     */  | 
    
    
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    #include <unistd.h>  | 
    
    
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    #include <signal.h>  | 
    
    
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    #include <errno.h>  | 
    
    
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    #include <pthread.h>  | 
    
    
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    #include <pthread_np.h>  | 
    
    
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    #include "rthread.h"  | 
    
    
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    int  | 
    
    
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    pthread_getschedparam(pthread_t thread, int *policy,  | 
    
    
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        struct sched_param *param)  | 
    
    
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    { | 
    
    
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    	if (!_threads_ready)  | 
    
    
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    		_rthread_init();  | 
    
    
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    	*policy = thread->attr.sched_policy;  | 
    
    
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    	if (param)  | 
    
    
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    		*param = thread->attr.sched_param;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_setschedparam(pthread_t thread, int policy,  | 
    
    
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        const struct sched_param *param)  | 
    
    
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    { | 
    
    
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    	if (!_threads_ready)  | 
    
    
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    		_rthread_init();  | 
    
    
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    	/* XXX return ENOTSUP for SCHED_{FIFO,RR}? */ | 
    
    
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    	if (policy != SCHED_OTHER && policy != SCHED_FIFO &&  | 
    
    
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    	    policy != SCHED_RR)  | 
    
    
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    		return (EINVAL);  | 
    
    
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    	thread->attr.sched_policy = policy;  | 
    
    
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    	if (param)  | 
    
    
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    		thread->attr.sched_param = *param;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_attr_getschedparam(const pthread_attr_t *attrp,  | 
    
    
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        struct sched_param *param)  | 
    
    
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    { | 
    
    
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    	*param = (*attrp)->sched_param;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_attr_setschedparam(pthread_attr_t *attrp,  | 
    
    
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        const struct sched_param *param)  | 
    
    
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    { | 
    
    
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    	(*attrp)->sched_param = *param;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_attr_getschedpolicy(const pthread_attr_t *attrp, int *policy)  | 
    
    
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    { | 
    
    
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    	*policy = (*attrp)->sched_policy;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_attr_setschedpolicy(pthread_attr_t *attrp, int policy)  | 
    
    
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    { | 
    
    
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    	/* XXX return ENOTSUP for SCHED_{FIFO,RR}? */ | 
    
    
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    	if (policy != SCHED_OTHER && policy != SCHED_FIFO &&  | 
    
    
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    	    policy != SCHED_RR)  | 
    
    
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    		return (EINVAL);  | 
    
    
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    	(*attrp)->sched_policy = policy;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_attr_getinheritsched(const pthread_attr_t *attrp, int *inherit)  | 
    
    
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    { | 
    
    
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    	*inherit = (*attrp)->sched_inherit;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_attr_setinheritsched(pthread_attr_t *attrp, int inherit)  | 
    
    
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    { | 
    
    
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    	if (inherit != PTHREAD_INHERIT_SCHED &&  | 
    
    
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    	    inherit != PTHREAD_EXPLICIT_SCHED)  | 
    
    
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    		return (EINVAL);  | 
    
    
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    	(*attrp)->sched_inherit = inherit;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_getprio(pthread_t thread)  | 
    
    
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    { | 
    
    
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    	if (!_threads_ready)  | 
    
    
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    		_rthread_init();  | 
    
    
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    	return (thread->attr.sched_param.sched_priority);  | 
    
    
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    }  | 
    
    
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    int  | 
    
    
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    pthread_setprio(pthread_t thread, int priority)  | 
    
    
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    { | 
    
    
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    	if (!_threads_ready)  | 
    
    
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    		_rthread_init();  | 
    
    
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    	thread->attr.sched_param.sched_priority = priority;  | 
    
    
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    	return (0);  | 
    
    
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    }  | 
    
    
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    void  | 
    
    
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    pthread_yield(void)  | 
    
    
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    { | 
    
    
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    	sched_yield();  | 
    
    
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    }  | 
    
    
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