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	spa: libcamera: use lock when acquiring CameraManager
				
					
				
			Make `libcamera_manager_acquire()` thread safe by locking a mutex
when the `CameraManager` instance is created and started.
(cherry picked from commit 5f4f4b5dd3)
			
			
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					 1 changed files with 5 additions and 2 deletions
				
			
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					@ -82,10 +82,13 @@ struct impl {
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}
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					}
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static std::weak_ptr<CameraManager> global_manager;
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std::shared_ptr<CameraManager> libcamera_manager_acquire(int& res)
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					std::shared_ptr<CameraManager> libcamera_manager_acquire(int& res)
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{
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					{
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						static std::weak_ptr<CameraManager> global_manager;
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						static std::mutex lock;
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						std::lock_guard guard(lock);
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	if (auto manager = global_manager.lock())
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						if (auto manager = global_manager.lock())
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		return manager;
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							return manager;
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