00001 /* 00002 Copyright (C) 2011 Computer Sciences Department, 00003 University of Wisconsin -- Madison 00004 00005 ---------------------------------------------------------------------- 00006 00007 This file is part of Mnemosyne: Lightweight Persistent Memory, 00008 originally developed at the University of Wisconsin -- Madison. 00009 00010 Mnemosyne was originally developed primarily by Haris Volos 00011 with contributions from Andres Jaan Tack. 00012 00013 ---------------------------------------------------------------------- 00014 00015 Mnemosyne is free software; you can redistribute it and/or 00016 modify it under the terms of the GNU General Public License 00017 as published by the Free Software Foundation, version 2 00018 of the License. 00019 00020 Mnemosyne is distributed in the hope that it will be useful, 00021 but WITHOUT ANY WARRANTY; without even the implied warranty of 00022 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00023 GNU General Public License for more details. 00024 00025 You should have received a copy of the GNU General Public License 00026 along with this program; if not, write to the Free Software 00027 Foundation, Inc., 51 Franklin Street, Fifth Floor, 00028 Boston, MA 02110-1301, USA. 00029 00030 ### END HEADER ### 00031 */ 00032 00033 #ifndef _PWB_LOCKS_H 00034 #define _PWB_LOCKS_H 00035 00036 #undef VERSION_MAX 00037 #undef LOCK_GET_TIMESTAMP 00038 #undef LOCK_SET_TIMESTAMP 00039 00040 #define VERSION_MAX (~(mtm_word_t)0 >> 1) 00041 00042 #define LOCK_GET_TIMESTAMP(l) (l >> 1) /* Logical shift (unsigned) */ 00043 #define LOCK_SET_TIMESTAMP(t) (t << 1) /* OWNED bit not set */ 00044 00045 #endif /* _PWB_LOCKS_H */
1.4.7