posix/include/sys/ipc.h

   1 /* $Id: ipc.h,v 1.5 2002/10/29 04:45:19 rex Exp $
   2  */
   3 /*
   4  * sys/ipc.h
   5  *
   6  * interprocess communication access structure. Conforming to the Single
   7  * UNIX(r) Specification Version 2, System Interface & Headers Issue 5
   8  *
   9  * This file is part of the ReactOS Operating System.
  10  *
  11  * Contributors:
  12  *  Created by KJK::Hyperion <noog@libero.it>
  13  *
  14  *  THIS SOFTWARE IS NOT COPYRIGHTED
  15  *
  16  *  This source code is offered for use in the public domain. You may
  17  *  use, modify or distribute it freely.
  18  *
  19  *  This code is distributed in the hope that it will be useful but
  20  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  21  *  DISCLAMED. This includes but is not limited to warranties of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  23  *
  24  */
  25 #ifndef __SYS_IPC_H_INCLUDED__
  26 #define __SYS_IPC_H_INCLUDED__
  27
  28 /* INCLUDES */
  29
  30 /* OBJECTS */
  31
  32 /* TYPES */
  33 struct ipc_perm
  34 {
  35  uid_t  uid;  /* owner's user ID */
  36  gid_t  gid;  /* owner's group ID */
  37  uid_t  cuid; /* creator's user ID */
  38  gid_t  cgid; /* creator's group ID */
  39  mode_t mode; /* read/write permission */
  40 };
  41
  42 /* CONSTANTS */
  43 /* Mode bits */
  44 #define IPC_CREAT  (0x00000200) /* Create entry if key does not exist */
  45 #define IPC_EXCL   (0x00000400) /* Fail if key exists */
  46 #define IPC_NOWAIT (0x00000800) /* Error if request must wait */
  47
  48 /* Keys */
  49 #define IPC_PRIVATE (0xFFFFFFFF) /* Private key */
  50
  51 /* Control commands */
  52 #define IPC_RMID (1) /* Remove identifier */
  53 #define IPC_SET  (2) /* Set options */
  54 #define IPC_STAT (3) /* Get options */
  55
  56 /* PROTOTYPES */
  57 key_t  ftok(const char *, int);
  58
  59 /* MACROS */
  60
  61 #endif /* __SYS_IPC_H_INCLUDED__ */
  62
  63 /* EOF */
  64