[libcamera-devel] [PATCH 23/23] libcamera: PipelineHandler: Move printing pipeline names to CameraManager

[Paul Elder]

Since pipeline registration is done with declaring static factory
objects, there is a risk that pipeline factories will be constructed
before libcamera facilities are ready. For example, logging in the
constructor of a pipeline handler factory may cause a segfault if
threading isn't ready yet. Avoid this issue by moving printing the
registration of the pipeline handler to the camera manager.

Signed-off-by: Paul Elder <paul.elder at ideasonboard.com>
---
 src/libcamera/camera_manager.cpp   | 2 ++
 src/libcamera/pipeline_handler.cpp | 3 ---
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/libcamera/camera_manager.cpp b/src/libcamera/camera_manager.cpp
index b8d3ccc8..e5af271d 100644
--- a/src/libcamera/camera_manager.cpp
+++ b/src/libcamera/camera_manager.cpp
@@ -142,6 +142,8 @@ void CameraManager::Private::createPipelineHandlers()
 		PipelineHandlerFactory::factories();
 
 	for (PipelineHandlerFactory *factory : factories) {
+		LOG(Camera, Debug)
+			<< "Found registered pipeline handler \"" << factory->name() << "\"";
 		/*
 		 * Try each pipeline handler until it exhaust
 		 * all pipelines it can provide.
diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
index 918aea1e..894200ee 100644
--- a/src/libcamera/pipeline_handler.cpp
+++ b/src/libcamera/pipeline_handler.cpp
@@ -689,9 +689,6 @@ void PipelineHandlerFactory::registerType(PipelineHandlerFactory *factory)
 	std::vector<PipelineHandlerFactory *> &factories = PipelineHandlerFactory::factories();
 
 	factories.push_back(factory);
-
-	LOG(Pipeline, Debug)
-		<< "Registered pipeline handler \"" << factory->name() << "\"";
 }
 
 /**
-- 
2.27.0