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1 | /* -*- C++ -*- */ |
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2 | |
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3 | /* |
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4 | |
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5 | Heap Layers: An Extensible Memory Allocation Infrastructure |
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6 | |
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7 | Copyright (C) 2000-2003 by Emery Berger |
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8 | http://www.cs.umass.edu/~emery |
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9 | emery@cs.umass.edu |
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10 | |
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11 | This program is free software; you can redistribute it and/or modify |
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12 | it under the terms of the GNU General Public License as published by |
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13 | the Free Software Foundation; either version 2 of the License, or |
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14 | (at your option) any later version. |
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15 | |
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16 | This program is distributed in the hope that it will be useful, |
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17 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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19 | GNU General Public License for more details. |
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20 | |
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21 | You should have received a copy of the GNU General Public License |
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22 | along with this program; if not, write to the Free Software |
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23 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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24 | |
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25 | */ |
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26 | |
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27 | #ifndef _POSIXLOCK_H_ |
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28 | #define _POSIXLOCK_H_ |
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29 | |
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30 | #if !defined(_WIN32) |
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31 | |
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32 | #include <pthread.h> |
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33 | |
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34 | /** |
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35 | * @class PosixLockType |
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36 | * @brief Locking using POSIX mutex objects. |
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37 | */ |
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38 | |
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39 | namespace HL { |
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40 | |
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41 | class PosixLockType { |
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42 | public: |
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43 | |
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44 | PosixLockType (void) |
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45 | { |
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46 | pthread_mutex_init (&mutex, NULL); |
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47 | } |
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48 | |
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49 | ~PosixLockType (void) |
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50 | { |
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51 | pthread_mutex_destroy (&mutex); |
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52 | } |
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53 | |
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54 | void lock (void) { |
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55 | pthread_mutex_lock (&mutex); |
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56 | } |
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57 | |
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58 | void unlock (void) { |
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59 | pthread_mutex_unlock (&mutex); |
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60 | } |
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61 | |
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62 | private: |
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63 | union { |
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64 | pthread_mutex_t mutex; |
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65 | double _dummy[sizeof(pthread_mutex_t)/sizeof(double) + 1]; |
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66 | }; |
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67 | }; |
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68 | |
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69 | } |
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70 | |
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71 | #endif |
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72 | |
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73 | #endif |
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