test/ipc/lib/ipcshm.h

   1 /*
   2  *
   3  *   Copyright (c) International Business Machines  Corp., 2001
   4  *
   5  *   This program is free software;  you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation; either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  13  *   the GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program;  if not, write to the Free Software
  17  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18  */
  19
  20 /*
  21  * ipcshm.h - common definitions for the IPC shared memory tests
  22  */
  23
  24 #ifndef __IPCSHM_H
  25 #define __IPCSHM_H
  26
  27 #include <errno.h>
  28 #include <sys/wait.h>
  29 #include <sys/ipc.h>
  30 #include <sys/shm.h>
  31
  32 #include "test.h"
  33 #include "usctest.h"
  34
  35 void cleanup(void);
  36 void setup(void);
  37
  38 #define SHM_RD  0400
  39 #define SHM_WR  0200
  40 #define SHM_RW  SHM_RD | SHM_WR
  41
  42 #define SHM_SIZE        2048    /* a resonable size for a memory segment */
  43 #define INT_SIZE        4       /* instead of sizeof(int) */
  44
  45 #define MODE_MASK       0x01FF  /* to get the lower nine permission bits */
  46                                 /* from shmid_ds.ipc_perm.mode           */
  47
  48 key_t shmkey;                   /* an IPC key generated by ftok() */
  49
  50 void rm_shm(int shm_id);
  51 void check_root(void);
  52
  53 int getipckey(void);
  54 int getuserid(char*);
  55
  56 #endif /* ipcshm.h */