| /* |
| * Copyright (C) 2010 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
| * |
| * locks.h: locks are used to preserve atomicity of operations. |
| */ |
| |
| #ifndef LOCKS_H__ |
| #define LOCKS_H__ |
| |
| /* this is the base key, since we have to pick something global */ |
| #define IPC_LOCK_KEY (0x67736c00 & 0xfffffc00) /* 22 bits "gsl" */ |
| |
| /* The ordering of the following keys matters a lot. We don't want to reorder |
| * keys and have a new binary dependent on deployed/used because it will break |
| * atomicity of existing users and binaries. In other words, DO NOT REORDER. */ |
| |
| /* this is the "big lock". */ |
| #define BIGLOCK (IPC_LOCK_KEY + 0) |
| |
| #endif /* LOCKS_H__ */ |
