The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/posix4/posix4.h

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    1 #ifndef _P1003_1B_P1003_1B_H_
    2 #define _P1003_1B_P1003_1B_H_
    3 /*-
    4  * Copyright (c) 1996, 1997, 1998
    5  *      HD Associates, Inc.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. All advertising materials mentioning features or use of this software
   16  *    must display the following acknowledgement:
   17  *      This product includes software developed by HD Associates, Inc
   18  * 4. Neither the name of the author nor the names of any co-contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  */
   35 
   36 #include "opt_posix.h"
   37 
   38 #include <sys/param.h>
   39 #include <sys/ioccom.h>
   40 #include <sys/malloc.h>
   41 #include <posix4/sched.h>
   42 
   43 /* Generate syscall stubs for when something is optionally
   44  * LKM'd.  References "syscall_not_present". 
   45  * XXX Good candidate for sys/syscall.h
   46  */
   47 struct proc;
   48 struct nosys_args;
   49 extern int syscall_not_present(struct proc *, const char *, struct nosys_args *);
   50 
   51 #define SYSCALL_NOT_PRESENT_GEN(SC) \
   52 int SC (struct proc *p, struct SC##_args *uap) \
   53 { \
   54         return syscall_not_present(p, #SC , (struct nosys_args *)uap); \
   55 }
   56 
   57 
   58 MALLOC_DECLARE(M_P31B);
   59 
   60 #define p31b_malloc(SIZE) malloc((SIZE), M_P31B, M_WAITOK)
   61 #define p31b_free(P) free((P), M_P31B)
   62 
   63 int p31b_proc __P((struct proc *, pid_t, struct proc **));
   64 
   65 void p31b_setcfg __P((int, int));
   66 
   67 #ifdef _KPOSIX_PRIORITY_SCHEDULING
   68 
   69 /* 
   70  * KSCHED_OP_RW is a vector of read/write flags for each entry indexed
   71  * by the enum ksched_op.
   72  *
   73  * 1 means you need write access, 0 means read is sufficient.
   74  */
   75 
   76 enum ksched_op {
   77 
   78 #define KSCHED_OP_RW { 1, 0, 1, 0, 0, 0, 0, 0 }
   79 
   80         SCHED_SETPARAM,
   81         SCHED_GETPARAM,
   82         SCHED_SETSCHEDULER,
   83         SCHED_GETSCHEDULER,
   84         SCHED_YIELD,
   85         SCHED_GET_PRIORITY_MAX,
   86         SCHED_GET_PRIORITY_MIN,
   87         SCHED_RR_GET_INTERVAL,
   88         SCHED_OP_MAX
   89 };
   90 
   91 struct ksched;
   92 
   93 int ksched_attach(struct ksched **);
   94 int ksched_detach(struct ksched *);
   95 
   96 int ksched_setparam(int *, struct ksched *,
   97         struct proc *, const struct sched_param *);
   98 int ksched_getparam(int *, struct ksched *,
   99         struct proc *, struct sched_param *);
  100 
  101 int ksched_setscheduler(int *, struct ksched *,
  102         struct proc *, int, const struct sched_param *);
  103 int ksched_getscheduler(int *, struct ksched *, struct proc *);
  104 
  105 int ksched_yield(int *, struct ksched *);
  106 
  107 int ksched_get_priority_max(int *, struct ksched *, int);
  108 int ksched_get_priority_min(int *, struct ksched *, int);
  109 
  110 int ksched_rr_get_interval(int *, struct ksched *, struct proc *, struct timespec *);
  111 
  112 #endif /* _KPOSIX_PRIORITY_SCHEDULING */
  113 
  114 #endif /* _P1003_1B_P1003_1B_H_ */

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