usr/src/uts/common/sys/lock.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 #ifndef _SYS_LOCK_H
  27 #define _SYS_LOCK_H
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 11.7  */
  30
  31 #ifdef  __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /*
  36  * flags for locking procs and texts
  37  */
  38 #define UNLOCK   0
  39 #define PROCLOCK 1
  40 #define TXTLOCK  2
  41 #define DATLOCK  4
  42
  43 #ifdef _KERNEL
  44
  45 #define MEMLOCK  8
  46
  47 #if defined(__STDC__)
  48 int punlock(void);
  49 #else
  50 int punlock();
  51 #endif  /* __STDC__ */
  52
  53 #else
  54
  55 #if defined(__STDC__)
  56 int plock(int);
  57 #else
  58 int plock();
  59 #endif  /* __STDC__ */
  60
  61 #endif  /* _KERNEL */
  62
  63 #ifdef  __cplusplus
  64 }
  65 #endif
  66
  67 #endif  /* _SYS_LOCK_H */