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

     /*      $NetBSD: linux_shm.h,v 1.12 2008/04/28 20:23:44 martin Exp $    */
     
     /*-
      * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Frank van der Linden and Eric Haszlakiewicz.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    #ifndef _LINUX_SHM_H
    #define _LINUX_SHM_H
    
    #include <sys/shm.h>
    
    /*
     * shm segment control structure
     */
    struct linux_shmid_ds {
            struct linux_ipc_perm   l_shm_perm;
            int                     l_shm_segsz;
            linux_time_t            l_shm_atime;
            linux_time_t            l_shm_dtime;
            linux_time_t            l_shm_ctime;
            ushort                  l_shm_cpid;
            ushort                  l_shm_lpid;
            short                   l_shm_nattch;
            ushort                  l_private1;
            void                    *l_private2;
            void                    *l_private3;
    };
    
    struct linux_shmid64_ds {
            struct linux_ipc64_perm l_shm_perm;
            size_t                  l_shm_segsz;
            linux_time_t            l_shm_atime;
    #ifndef _LP64
            u_long                  l____unused1;
    #endif
            linux_time_t            l_shm_dtime;
    #ifndef _LP64
            u_long                  l____unused2;
    #endif
            linux_time_t            l_shm_ctime;
    #ifndef _LP64
            u_long                  l____unused3;
    #endif
            int                     l_shm_cpid;
            int                     l_shm_lpid;
            u_long                  l_shm_nattch;
            u_long                  l___unused4;
            u_long                  l___unused5;
    };
    
    struct linux_shminfo64 {
            u_long                  l_shmmax;
            u_long                  l_shmmin;
            u_long                  l_shmmni;
            u_long                  l_shmseg;
            u_long                  l_shmall;
            u_long                  l___unused1;
            u_long                  l___unused2;
            u_long                  l___unused3;
            u_long                  l___unused4;
    };
    
    struct linux_shm_info {
            int                     l_used_ids;
            u_long                  l_shm_tot;
            u_long                  l_shm_rss;
            u_long                  l_shm_swp;
            u_long                  l_swap_attempts;
            u_long                  l_swap_successes;
    };
    
    #define LINUX_SHM_RDONLY        0x1000
    #define LINUX_SHM_RND           0x2000
    #define LINUX_SHM_REMAP         0x4000
   
   #define LINUX_SHM_LOCK          11
   #define LINUX_SHM_UNLOCK        12
   #define LINUX_SHM_STAT          13
   #define LINUX_SHM_INFO          14
   
   
   /* Pretend the sys_shmat and sys_shmctl syscalls are defined */
   struct linux_sys_shmat_args {
           syscallarg(int) shmid;
           syscallarg(void *) shmaddr;
           syscallarg(int) shmflg;
           syscallarg(u_long *) raddr;
   };
   
   struct linux_sys_shmctl_args {
           syscallarg(int) shmid;
           syscallarg(int) cmd;
           syscallarg(struct linux_shmid_ds *) buf;
   };
   
   struct linux_sys_shmget_args {
           syscallarg(key_t) key;
           syscallarg(size_t) size;
           syscallarg(int) shmflg;
   };
   
   #ifdef SYSVSHM
   #ifdef _KERNEL
   __BEGIN_DECLS
   int linux_sys_shmget(struct lwp *, const struct linux_sys_shmget_args *, register_t *);
   int linux_sys_shmat(struct lwp *, const struct linux_sys_shmat_args *, register_t *);
   int linux_sys_shmctl(struct lwp *, const struct linux_sys_shmctl_args *, register_t *);
   void linux_to_bsd_shmid_ds(struct linux_shmid_ds *,
       struct shmid_ds *);
   void linux_to_bsd_shmid64_ds(struct linux_shmid64_ds *,
       struct shmid_ds *);
   void bsd_to_linux_shmid_ds(struct shmid_ds *,
       struct linux_shmid_ds *);
   void bsd_to_linux_shmid64_ds(struct shmid_ds *,
       struct linux_shmid64_ds *);
   __END_DECLS
   #endif  /* !_KERNEL */
   #endif  /* !SYSVSHM */
   
   #endif /* !_LINUX_SHM_H */

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