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/sys/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  * $FreeBSD: releng/9.1/sys/sys/posix4.h 225617 2011-09-16 13:58:51Z kmacy $
   35  */
   36 
   37 #include <sys/param.h>
   38 #include <sys/ioccom.h>
   39 #include <sys/malloc.h>
   40 #include <sys/sched.h>
   41 
   42 /* Generate syscall stubs for when something is optionally
   43  * loadable as a module.  References "syscall_not_present". 
   44  * XXX Good candidate for sys/syscall.h
   45  */
   46 struct proc;
   47 struct nosys_args;
   48 extern int syscall_not_present(struct thread *, const char *, struct nosys_args *);
   49 
   50 #define SYSCALL_NOT_PRESENT_GEN(SC) \
   51 int sys_ ## SC (struct thread *td, struct SC##_args *uap) \
   52 { \
   53         return syscall_not_present(td, #SC , (struct nosys_args *)uap); \
   54 }
   55 
   56 
   57 MALLOC_DECLARE(M_P31B);
   58 
   59 #define p31b_malloc(SIZE) malloc((SIZE), M_P31B, M_WAITOK)
   60 #define p31b_free(P) free((P), M_P31B)
   61 
   62 int p31b_proc(struct proc *, pid_t, struct proc **);
   63 
   64 void p31b_setcfg(int, int);
   65 int p31b_getcfg(int);
   66 int p31b_iscfg(int);
   67 void p31b_unsetcfg(int);
   68 
   69 #ifdef _KPOSIX_PRIORITY_SCHEDULING
   70 
   71 /* 
   72  * KSCHED_OP_RW is a vector of read/write flags for each entry indexed
   73  * by the enum ksched_op.
   74  *
   75  * 1 means you need write access, 0 means read is sufficient.
   76  */
   77 
   78 enum ksched_op {
   79 
   80 #define KSCHED_OP_RW { 1, 0, 1, 0, 0, 0, 0, 0 }
   81 
   82         SCHED_SETPARAM,
   83         SCHED_GETPARAM,
   84         SCHED_SETSCHEDULER,
   85         SCHED_GETSCHEDULER,
   86         SCHED_YIELD,
   87         SCHED_GET_PRIORITY_MAX,
   88         SCHED_GET_PRIORITY_MIN,
   89         SCHED_RR_GET_INTERVAL,
   90         SCHED_OP_MAX
   91 };
   92 
   93 struct ksched;
   94 
   95 int ksched_attach(struct ksched **);
   96 int ksched_detach(struct ksched *);
   97 
   98 int ksched_setparam(struct ksched *,
   99         struct thread *, const struct sched_param *);
  100 int ksched_getparam(struct ksched *,
  101         struct thread *, struct sched_param *);
  102 
  103 int ksched_setscheduler(struct ksched *,
  104         struct thread *, int, const struct sched_param *);
  105 int ksched_getscheduler(struct ksched *, struct thread *, int *);
  106 
  107 int ksched_yield(struct ksched *);
  108 
  109 int ksched_get_priority_max(struct ksched *, int, int *);
  110 int ksched_get_priority_min(struct ksched *, int, int *);
  111 
  112 int ksched_rr_get_interval(struct ksched *,
  113         struct thread *, struct timespec *);
  114 
  115 #endif /* _KPOSIX_PRIORITY_SCHEDULING */
  116 
  117 #endif /* _P1003_1B_P1003_1B_H_ */

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