1.3.5
00001 // The contents of this file are subject to the Mozilla Public License 00002 // Version 1.0 (the "License"); you may not use this file except in 00003 // compliance with the License. You may obtain a copy of the License 00004 // at http://www.mozilla.org/MPL/ 00005 // 00006 // Software distributed under the License is distributed on an "AS IS" 00007 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See 00008 // the License for the specific language governing rights and 00009 // limitations under the License. 00010 // 00011 // Contributor Henner Zeller <H.Zeller@acm.org> 00012 00013 #ifndef __CRITICALSECTIONBLOCK_H 00014 #define __CRITICALSECTIONBLOCK_H 00015 00016 #include <critsec.h> 00017 00070 class CriticalSectionBlock { 00071 private: 00072 critsec_t *_critsec; 00077 char _checkonceHackCounter; 00078 00079 public: 00083 CriticalSectionBlock (critsec_t *critsec) 00084 : _critsec(critsec), 00085 _checkonceHackCounter(1) 00086 { 00087 enter_critical_section(_critsec); 00088 } 00089 00093 inline bool checkonce() { return _checkonceHackCounter-- > 0; } 00094 00098 ~CriticalSectionBlock () { 00099 leave_critical_section(_critsec); 00100 } 00101 }; 00102 00131 #define synchronized(cs) for(CriticalSectionBlock __currentlocked(cs);__currentlocked.checkonce();/* */) 00132 00133 /* 00134 * Local variables: 00135 * c-basic-offset: 8 00136 * End: 00137 */ 00138 00139 #endif /* __CRITICALSECTIONBLOCK_H */
|
brickOS is released under the
Mozilla Public License.
Original code copyright 1998-2002 by the authors. |
1.3.5