usr.bin/ipcs/ipc.h

   1 /*
   2  * Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
   3  * 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. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  17  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  18  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
  19  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  * The split of ipcs.c into ipcs.c and ipc.c to accommodate the
  28  * changes in ipcrm.c was done by Edwin Groothuis <edwin@FreeBSD.org>
  29  *
  30  * $FreeBSD$
  31  */
  32
  33 /* Part of struct nlist symbols[] */
  34 #define X_SEMA          0
  35 #define X_SEMINFO       1
  36 #define X_MSGINFO       2
  37 #define X_MSQIDS        3
  38 #define X_SHMINFO       4
  39 #define X_SHMSEGS       5
  40
  41 #define SHMINFO         1
  42 #define SHMTOTAL        2
  43 #define MSGINFO         4
  44 #define MSGTOTAL        8
  45 #define SEMINFO         16
  46 #define SEMTOTAL        32
  47
  48 #define IPC_TO_STR(x) (x == 'Q' ? "msq" : (x == 'M' ? "shm" : "sem"))
  49 #define IPC_TO_STRING(x) (x == 'Q' ? "message queue" : \
  50             (x == 'M' ? "shared memory segment" : "semaphore"))
  51
  52 /* SysCtlGatherStruct structure. */
  53 struct scgs_vector {
  54         const char *sysctl;
  55         size_t offset;
  56         size_t size;
  57 };
  58
  59 void    kget(int idx, void *addr, size_t size);
  60 void    sysctlgatherstruct(void *addr, size_t size, struct scgs_vector *vec);
  61
  62 extern int use_sysctl;
  63 extern struct nlist symbols[];
  64 extern kvm_t *kd;
  65
  66 extern struct semid_kernel      *sema;
  67 extern struct msqid_kernel      *msqids;
  68 extern struct shmid_kernel      *shmsegs;