| 1 | /* |
| 2 | Copyright (C) 2003 Rice1964 |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU General Public License |
| 6 | as published by the Free Software Foundation; either version 2 |
| 7 | of the License, or (at your option) any later version. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software |
| 16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | |
| 18 | */ |
| 19 | |
| 20 | #if !defined(CRITSECT_H) |
| 21 | #define CRITSECT_H |
| 22 | |
| 23 | #include <SDL.h> |
| 24 | |
| 25 | //*SEB*, single process, no lock needed... |
| 26 | #define NOLOCK |
| 27 | |
| 28 | class CCritSect |
| 29 | { |
| 30 | public: |
| 31 | CCritSect() |
| 32 | { |
| 33 | #ifndef NOLOCK |
| 34 | cs = SDL_CreateMutex(); |
| 35 | #endif |
| 36 | locked = 0; |
| 37 | } |
| 38 | |
| 39 | ~CCritSect() |
| 40 | { |
| 41 | #ifndef NOLOCK |
| 42 | SDL_DestroyMutex(cs); |
| 43 | #endif |
| 44 | } |
| 45 | |
| 46 | void Lock() |
| 47 | { |
| 48 | #ifndef NOLOCK |
| 49 | SDL_LockMutex(cs); |
| 50 | #endif |
| 51 | locked = 1; |
| 52 | } |
| 53 | |
| 54 | void Unlock() |
| 55 | { |
| 56 | locked = 0; |
| 57 | #ifndef NOLOCK |
| 58 | SDL_UnlockMutex(cs); |
| 59 | #endif |
| 60 | } |
| 61 | |
| 62 | bool IsLocked() |
| 63 | { |
| 64 | return (locked != 0); |
| 65 | } |
| 66 | |
| 67 | protected: |
| 68 | #ifndef NOLOCK |
| 69 | SDL_mutex *cs; |
| 70 | #endif |
| 71 | int locked; |
| 72 | }; |
| 73 | |
| 74 | #endif // !defined(CRITSECT_H) |
| 75 | |