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 #pragma ident "%Z%%M% %I% %E% SMI" 13 14 #ifndef SM_SHM_H 15 # define SM_SHM_H 16 17 # if SM_CONF_SHM 18 # include <sys/types.h> 19 # include <sys/ipc.h> 20 # include <sys/shm.h> 21 22 /* # include "def.h" */ 23 24 /* key for shared memory */ 25 # define SM_SHM_KEY ((key_t) 42) 26 27 /* return value for failed shmget() */ 28 # define SM_SHM_NULL ((void *) -1) 29 # define SM_SHM_NO_ID (-2) 30 31 extern void *sm_shmstart __P((key_t, int , int , int *, bool)); 32 extern int sm_shmstop __P((void *, int, bool)); 33 extern int sm_shmsetowner __P((int, uid_t, gid_t, mode_t)); 34 35 36 /* for those braindead systems... (e.g., SunOS 4) */ 37 # ifndef SHM_R 38 # define SHM_R 0400 39 # endif /* SHM_R */ 40 # ifndef SHM_W 41 # define SHM_W 0200 42 # endif /* SHM_W */ 43 44 # endif /* SM_CONF_SHM */ 45 #endif /* ! SM_SHM_H */ 46