| /* |
| * Copyright (c) 2011 RedHat, Inc. |
| * All Rights Reserved. |
| * |
| * 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. |
| * |
| * This program is distributed in the hope that it would 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 the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| #ifndef __ATOMIC_H__ |
| #define __ATOMIC_H__ |
| |
| /* |
| * Warning: These are not really atomic at all. They are wrappers around the |
| * kernel atomic variable interface. If we do need these variables to be atomic |
| * (due to multithreading of the code that uses them) we need to add some |
| * pthreads magic here. |
| */ |
| typedef int32_t atomic_t; |
| typedef int64_t atomic64_t; |
| |
| #define atomic_inc_return(x) (++(*(x))) |
| #define atomic_dec_return(x) (--(*(x))) |
| |
| #define atomic64_read(x) *(x) |
| #define atomic64_set(x, v) (*(x) = v) |
| |
| #endif /* __ATOMIC_H__ */ |
