| 1 | // | 
| 2 | // Redistribution and use in source and binary forms, with or without | 
| 3 | // modification, are permitted provided that the following conditions | 
| 4 | // are met: | 
| 5 | //  * Redistributions of source code must retain the above copyright | 
| 6 | //    notice, this list of conditions and the following disclaimer. | 
| 7 | //  * Redistributions in binary form must reproduce the above copyright | 
| 8 | //    notice, this list of conditions and the following disclaimer in the | 
| 9 | //    documentation and/or other materials provided with the distribution. | 
| 10 | //  * Neither the name of NVIDIA CORPORATION nor the names of its | 
| 11 | //    contributors may be used to endorse or promote products derived | 
| 12 | //    from this software without specific prior written permission. | 
| 13 | // | 
| 14 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY | 
| 15 | // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 
| 16 | // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 
| 17 | // PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR | 
| 18 | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 
| 19 | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 
| 20 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 
| 21 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 
| 22 | // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 
| 23 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 
| 24 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
| 25 | // | 
| 26 | // Copyright (c) 2008-2021 NVIDIA Corporation. All rights reserved. | 
| 27 | // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. | 
| 28 | // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.   | 
| 29 |  | 
| 30 |  | 
| 31 | #ifndef PX_PHYSICS_NX_SCENELOCK | 
| 32 | #define PX_PHYSICS_NX_SCENELOCK | 
| 33 | /** \addtogroup physics | 
| 34 | @{ | 
| 35 | */ | 
| 36 |  | 
| 37 | #include "PxPhysXConfig.h" | 
| 38 | #include "PxScene.h" | 
| 39 |  | 
| 40 | #if !PX_DOXYGEN | 
| 41 | namespace physx | 
| 42 | { | 
| 43 | #endif | 
| 44 |  | 
| 45 | /** | 
| 46 | \brief RAII wrapper for the PxScene read lock. | 
| 47 |  | 
| 48 | Use this class as follows to lock the scene for reading by the current thread  | 
| 49 | for the duration of the enclosing scope: | 
| 50 |  | 
| 51 | 	PxSceneReadLock lock(sceneRef); | 
| 52 |  | 
| 53 | \see PxScene::lockRead(), PxScene::unlockRead(), PxSceneFlag::eREQUIRE_RW_LOCK | 
| 54 | */ | 
| 55 | class PxSceneReadLock | 
| 56 | { | 
| 57 | 	PxSceneReadLock(const PxSceneReadLock&); | 
| 58 | 	PxSceneReadLock& operator=(const PxSceneReadLock&); | 
| 59 |  | 
| 60 | public: | 
| 61 | 	 | 
| 62 | 	/** | 
| 63 | 	\brief Constructor | 
| 64 | 	\param scene The scene to lock for reading | 
| 65 | 	\param file Optional string for debugging purposes | 
| 66 | 	\param line Optional line number for debugging purposes | 
| 67 | 	*/ | 
| 68 | 	PxSceneReadLock(PxScene& scene, const char* file=NULL, PxU32 line=0) | 
| 69 | 		: mScene(scene) | 
| 70 | 	{ | 
| 71 | 		mScene.lockRead(file, line); | 
| 72 | 	} | 
| 73 |  | 
| 74 | 	~PxSceneReadLock() | 
| 75 | 	{ | 
| 76 | 		mScene.unlockRead(); | 
| 77 | 	} | 
| 78 |  | 
| 79 | private: | 
| 80 |  | 
| 81 | 	PxScene& mScene; | 
| 82 | }; | 
| 83 |  | 
| 84 | /** | 
| 85 | \brief RAII wrapper for the PxScene write lock. | 
| 86 |  | 
| 87 | Use this class as follows to lock the scene for writing by the current thread  | 
| 88 | for the duration of the enclosing scope: | 
| 89 |  | 
| 90 | 	PxSceneWriteLock lock(sceneRef); | 
| 91 |  | 
| 92 | \see PxScene::lockWrite(), PxScene::unlockWrite(), PxSceneFlag::eREQUIRE_RW_LOCK | 
| 93 | */ | 
| 94 | class PxSceneWriteLock | 
| 95 | { | 
| 96 | 	PxSceneWriteLock(const PxSceneWriteLock&); | 
| 97 | 	PxSceneWriteLock& operator=(const PxSceneWriteLock&); | 
| 98 |  | 
| 99 | public: | 
| 100 |  | 
| 101 | 	/** | 
| 102 | 	\brief Constructor | 
| 103 | 	\param scene The scene to lock for writing | 
| 104 | 	\param file Optional string for debugging purposes | 
| 105 | 	\param line Optional line number for debugging purposes | 
| 106 | 	*/ | 
| 107 | 	PxSceneWriteLock(PxScene& scene, const char* file=NULL, PxU32 line=0) | 
| 108 | 		: mScene(scene) | 
| 109 | 	{ | 
| 110 | 		mScene.lockWrite(file, line); | 
| 111 | 	} | 
| 112 |  | 
| 113 | 	~PxSceneWriteLock() | 
| 114 | 	{ | 
| 115 | 		mScene.unlockWrite(); | 
| 116 | 	} | 
| 117 |  | 
| 118 | private: | 
| 119 |  | 
| 120 | 	PxScene& mScene; | 
| 121 | }; | 
| 122 |  | 
| 123 |  | 
| 124 | #if !PX_DOXYGEN | 
| 125 | } // namespace physx | 
| 126 | #endif | 
| 127 |  | 
| 128 | /** @} */ | 
| 129 | #endif | 
| 130 |  |