1 /* 2 * Copyright (c) 2000-2003 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 1.8.2.2 2003/05/17 18:34:16 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 32 33 /* for those braindead systems... (e.g., SunOS 4) */ 34 # ifndef SHM_R 35 # define SHM_R 0400 36 # endif /* SHM_R */ 37 # ifndef SHM_W 38 # define SHM_W 0200 39 # endif /* SHM_W */ 40 41 # endif /* SM_CONF_SHM */ 42 #endif /* ! SM_SHM_H */ 43