linux_sem.h

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    1 /*      $NetBSD: linux_sem.h,v 1.10 2008/04/28 20:23:44 martin Exp $    */
    2 
    3 /*-
    4  * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Frank van der Linden and Eric Haszlakiewicz.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #ifndef _LINUX_SEM_H
   33 #define _LINUX_SEM_H
   34 
   35 #include <sys/sem.h>
   36 
   37 /*
   38  * Operations for semctl(2), in addition to IPC_STAT and IPC_SET
   39  */
   40 #define LINUX_GETPID  11
   41 #define LINUX_GETVAL  12
   42 #define LINUX_GETALL  13
   43 #define LINUX_GETNCNT 14
   44 #define LINUX_GETZCNT 15
   45 #define LINUX_SETVAL  16
   46 #define LINUX_SETALL  17
   47 
   48 /*
   49  * Linux semid_ds structure. Internally used pointer fields are not
   50  * important to us and have been changed to void *
   51  */
   52 
   53 struct linux_semid_ds {
   54         struct linux_ipc_perm    l_sem_perm;
   55         linux_time_t             l_sem_otime;
   56         linux_time_t             l_sem_ctime;
   57         void                    *l_sem_base;
   58         void                    *l_eventn;
   59         void                    *l_eventz;
   60         void                    *l_undo;
   61         ushort                   l_sem_nsems;
   62 };
   63 
   64 struct linux_semid64_ds {
   65         struct linux_ipc64_perm  l_sem_perm;
   66         linux_time_t             l_sem_otime;
   67         unsigned long            l___unused1;
   68         linux_time_t             l_sem_ctime;
   69         unsigned long            l___unused2;
   70         unsigned long            l_sem_nsems;
   71         unsigned long            l___unused3;
   72         unsigned long            l___unused4;
   73 };
   74 
   75 union linux_semun {
   76         int                      l_val;
   77         struct linux_semid_ds   *l_buf;
   78         ushort                  *l_array;
   79         void                    *l___buf;       /* For unsupported IPC_INFO */
   80         void                    *l___pad;
   81 };
   82 
   83 /* Pretend the sys_semctl syscall is defined */
   84 #ifndef __amd64__
   85 struct linux_sys_semctl_args {
   86         syscallarg(int) semid;
   87         syscallarg(int) semnum;
   88         syscallarg(int) cmd;
   89         syscallarg(union linux_semun) arg;
   90 };
   91 int linux_sys_semctl(struct lwp *, const struct linux_sys_semctl_args *, register_t *);
   92 #endif
   93 
   94 
   95 #ifdef SYSVSEM
   96 #ifdef _KERNEL
   97 __BEGIN_DECLS
   98 void bsd_to_linux_semid_ds(struct semid_ds *, struct linux_semid_ds *);
   99 void bsd_to_linux_semid64_ds(struct semid_ds *, struct linux_semid64_ds *);
  100 void linux_to_bsd_semid_ds(struct linux_semid_ds *, struct semid_ds *);
  101 void linux_to_bsd_semid64_ds(struct linux_semid64_ds *, struct semid_ds *);
  102 __END_DECLS
  103 #endif  /* !_KERNEL */
  104 #endif  /* !SYSVSEM */
  105 
  106 #endif /* !_LINUX_SEM_H */

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FreeBSD/Linux Kernel Cross Reference sys/compat/linux/common/linux_sem.h

FreeBSD/Linux Kernel Cross Reference
sys/compat/linux/common/linux_sem.h