[libcamera-devel] [PATCH 2/3] libcamera: pipeline_handler: Mark controls() and properties() as const operations

[Niklas Söderlund]

Reading the controls and properties do not modify the pipeline's state
and can be marked as const operations.

Signed-off-by: Niklas Söderlund <niklas.soderlund at ragnatech.se>
---
 include/libcamera/internal/pipeline_handler.h | 4 ++--
 src/libcamera/pipeline_handler.cpp            | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/libcamera/internal/pipeline_handler.h b/include/libcamera/internal/pipeline_handler.h
index d5321ef56df358d0..c4bf1cb68e09d754 100644
--- a/include/libcamera/internal/pipeline_handler.h
+++ b/include/libcamera/internal/pipeline_handler.h
@@ -68,8 +68,8 @@ public:
 	bool lock();
 	void unlock();
 
-	const ControlInfoMap &controls(Camera *camera);
-	const ControlList &properties(Camera *camera);
+	const ControlInfoMap &controls(const Camera *camera) const;
+	const ControlList &properties(const Camera *camera) const;
 
 	virtual CameraConfiguration *generateConfiguration(Camera *camera,
 		const StreamRoles &roles) = 0;
diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
index bc9c1d4b09c5437d..d239135872344a20 100644
--- a/src/libcamera/pipeline_handler.cpp
+++ b/src/libcamera/pipeline_handler.cpp
@@ -257,7 +257,7 @@ void PipelineHandler::unlock()
  * \context This function is \threadsafe.
  * \return A ControlInfoMap listing the controls support by \a camera
  */
-const ControlInfoMap &PipelineHandler::controls(Camera *camera)
+const ControlInfoMap &PipelineHandler::controls(const Camera *camera) const
 {
 	CameraData *data = cameraData(camera);
 	return data->controlInfo_;
@@ -268,7 +268,7 @@ const ControlInfoMap &PipelineHandler::controls(Camera *camera)
  * \param[in] camera The camera
  * \return A ControlList of properties supported by \a camera
  */
-const ControlList &PipelineHandler::properties(Camera *camera)
+const ControlList &PipelineHandler::properties(const Camera *camera) const
 {
 	CameraData *data = cameraData(camera);
 	return data->properties_;
-- 
2.28.0