xref: /illumos-gate/usr/src/cmd/sendmail/include/sm/shm.h (revision 2a8bcb4e)
1 /*
2  * Copyright (c) 2000-2003, 2005 Sendmail, Inc. and its suppliers.
3  *      All rights reserved.
4  *
5  * By using this file, you agree to the terms and conditions set
6  * forth in the LICENSE file which can be found at the top level of
7  * the sendmail distribution.
8  *
9  *	$Id: shm.h,v 1.11 2005/01/13 22:57:04 ca Exp $
10  */
11 
12 #ifndef SM_SHM_H
13 # define SM_SHM_H
14 
15 # if SM_CONF_SHM
16 #  include <sys/types.h>
17 #  include <sys/ipc.h>
18 #  include <sys/shm.h>
19 
20 /* # include "def.h"	*/
21 
22 /* key for shared memory */
23 #  define SM_SHM_KEY	((key_t) 42)
24 
25 /* return value for failed shmget() */
26 #  define SM_SHM_NULL	((void *) -1)
27 #  define SM_SHM_NO_ID	(-2)
28 
29 extern void *sm_shmstart __P((key_t, int , int , int *, bool));
30 extern int sm_shmstop __P((void *, int, bool));
31 extern int sm_shmsetowner __P((int, uid_t, gid_t, mode_t));
32 
33 
34 /* for those braindead systems... (e.g., SunOS 4) */
35 #  ifndef SHM_R
36 #   define SHM_R       0400
37 #  endif /* SHM_R */
38 #  ifndef SHM_W
39 #   define SHM_W       0200
40 #  endif /* SHM_W */
41 
42 # endif /* SM_CONF_SHM */
43 #endif /* ! SM_SHM_H */
44