sys/sys/posix4.h

   1 /*-
   2  * Copyright (c) 1996, 1997, 1998
   3  *      HD Associates, Inc.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by HD Associates, Inc
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/sys/posix4/posix4.h,v 1.6 1999/12/27 10:22:09 bde Exp $
  33  */
  34
  35 #ifndef _P1003_1B_P1003_1B_H_
  36 #define _P1003_1B_P1003_1B_H_
  37
  38 #ifndef _KERNEL
  39
  40 #error "This file should not be included by userland programs."
  41
  42 #else
  43
  44 #include "opt_posix.h"
  45
  46 #include <sys/param.h>
  47 #include <sys/malloc.h>
  48 #include <sys/sched.h>
  49
  50 MALLOC_DECLARE(M_P31B);
  51
  52 #define p31b_malloc(SIZE) kmalloc((SIZE), M_P31B, M_WAITOK)
  53 #define p31b_free(P) kfree((P), M_P31B)
  54
  55 struct proc;
  56 struct lwp;
  57
  58 void p31b_setcfg (int, int);
  59
  60 #ifdef _KPOSIX_PRIORITY_SCHEDULING
  61
  62 /*
  63  * KSCHED_OP_RW is a vector of read/write flags for each entry indexed
  64  * by the enum ksched_op.
  65  *
  66  * 1 means you need write access, 0 means read is sufficient.
  67  */
  68
  69 enum ksched_op {
  70
  71 #define KSCHED_OP_RW { 1, 0, 1, 0, 0, 0, 0, 0 }
  72
  73         SCHED_SETPARAM,
  74         SCHED_GETPARAM,
  75         SCHED_SETSCHEDULER,
  76         SCHED_GETSCHEDULER,
  77         SCHED_YIELD,
  78         SCHED_GET_PRIORITY_MAX,
  79         SCHED_GET_PRIORITY_MIN,
  80         SCHED_RR_GET_INTERVAL,
  81         SCHED_OP_MAX
  82 };
  83
  84 struct ksched;
  85
  86 int ksched_attach(struct ksched **);
  87 int ksched_detach(struct ksched *);
  88
  89 int ksched_setparam(register_t *, struct ksched *,
  90         struct lwp *, const struct sched_param *);
  91 int ksched_getparam(register_t *, struct ksched *,
  92         struct lwp *, struct sched_param *);
  93
  94 int ksched_setscheduler(register_t *, struct ksched *,
  95         struct lwp *, int, const struct sched_param *);
  96 int ksched_getscheduler(register_t *, struct ksched *, struct lwp *);
  97
  98 int ksched_yield(register_t *, struct ksched *);
  99
 100 int ksched_get_priority_max(register_t *, struct ksched *, int);
 101 int ksched_get_priority_min(register_t *, struct ksched *, int);
 102
 103 int ksched_rr_get_interval(register_t *, struct ksched *,
 104         struct lwp *, struct timespec *);
 105
 106 #endif /* _KPOSIX_PRIORITY_SCHEDULING */
 107
 108 #endif /* !_KERNEL */
 109 #endif /* !_P1003_1B_P1003_1B_H_ */