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linux_sem.h revision 1.1 
      1 /*	$NetBSD: linux_sem.h,v 1.1 1995/08/15 21:14:35 fvdl Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Frank van der Linden
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed for the NetBSD Project
     18  *      by Frank van der Linden
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _LINUX_SEM_H
     35 #define _LINUX_SEM_H
     36 
     37 /*
     38  * Operations for semctl(2), in addition to IPC_STAT and IPC_SET
     39  */
     40 #define LINUX_GETPID  11
     41 #define LINUX_GETVAL  12
     42 #define LINUX_GETALL  13
     43 #define LINUX_GETNCNT 14
     44 #define LINUX_GETZCNT 15
     45 #define LINUX_SETVAL  16
     46 #define LINUX_SETALL  17
     47 
     48 /*
     49  * Linux semid_ds structure. Internally used pointer fields are not
     50  * important to us and have been changed to void *
     51  */
     52 
     53 struct linux_semid_ds {
     54 	struct linux_ipc_perm	 l_sem_perm;
     55 	linux_time_t		 l_sem_otime;
     56 	linux_time_t		 l_sem_ctime;
     57 	void 			*l_sem_base;
     58 	void			*l_eventn;
     59 	void			*l_eventz;
     60 	void			*l_undo;
     61 	ushort			 l_sem_nsems;
     62 };
     63 
     64 union linux_semun {
     65 	int			 l_val;
     66 	struct linux_semid_ds	*l_buf;
     67 	ushort			*l_array;
     68 	void			*l___buf;	/* For unsupported IPC_INFO */
     69 	void			*l___pad;
     70 };
     71 
     72 #endif /* _LINUX_SEM_H */
     73