60088160c9
these syscalls are designed to set thread's scheduling parameters and policy, because each syscall contains a size parameter, it is possible to support future scheduling option, e.g SCHED_SPORADIC, this option needs other fields in structure sched_param, current they are not avaiblable.
82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/*-
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* Copyright (c) 2003, Jeffrey Roberson <jeff@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#ifndef _SYS_THR_H_
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#define _SYS_THR_H_
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#include <posix4/sched.h>
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struct thr_sched_param {
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int policy;
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struct sched_param param;
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};
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/* Create the thread in the suspended state. */
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#define THR_SUSPENDED 0x0001
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/* Create the system scope thread. */
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#define THR_SYSTEM_SCOPE 0x0002
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struct thr_param {
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void (*start_func)(void *); /* thread entry function. */
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void *arg; /* argument for entry function. */
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char *stack_base; /* stack base address. */
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size_t stack_size; /* stack size. */
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char *tls_base; /* tls base address. */
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size_t tls_size; /* tls size. */
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long *child_tid; /* address to store new TID. */
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long *parent_tid; /* parent accesses the new TID here. */
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int flags; /* thread flags. */
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struct thr_sched_param *sched_param; /* POSIX scheduler parameters .*/
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long sched_param_size; /* scheduler parameter size */
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void *spare[2]; /* TODO: cpu affinity mask etc. */
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};
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/*
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* See pthread_*
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*/
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#ifndef _KERNEL
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int thr_create(ucontext_t *ctx, long *id, int flags);
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int thr_new(struct thr_param *param, int param_size);
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int thr_self(long *id);
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void thr_exit(long *state);
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int thr_kill(long id, int sig);
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int thr_suspend(const struct timespec *timeout);
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int thr_wake(long id);
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int thr_set_name(long id, const char *name);
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int thr_setscheduler(long id, int policy, const struct sched_param *param,
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int param_size);
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int thr_getscheduler(long id, int *policy, struct sched_param *param,
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int param_size);
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int thr_setschedparam(long id, const struct sched_param *param,
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int param_size);
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#endif /* !_KERNEL */
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#endif /* ! _SYS_THR_H_ */
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