[libcamera-devel] [PATCH v2 1/5] libcamera: camera_manager: Refactor device enumeration into separate function

Kieran Bingham kieran.bingham at ideasonboard.com
Mon May 18 17:35:58 CEST 2020


Hi Umang,

On 13/05/2020 18:29, Umang Jain wrote:
> This commit introduces no functional changes.
> Split device enumeration code into a separate function,
> so that the function can be re-used for upcoming hotplug
> functionality in subsequent commits.
> 
> Also, fixup correct tag for \todo.

With three fixups I 'might' have moved this to it's own patch - but it's
really minimal and not a problem I don't think.

> 
> Signed-off-by: Umang Jain <email at uajain.com>
> ---
>  src/libcamera/camera_manager.cpp | 20 ++++++++++++++------
>  1 file changed, 14 insertions(+), 6 deletions(-)
> 
> diff --git a/src/libcamera/camera_manager.cpp b/src/libcamera/camera_manager.cpp
> index fddf734..1579ad4 100644
> --- a/src/libcamera/camera_manager.cpp
> +++ b/src/libcamera/camera_manager.cpp
> @@ -53,6 +53,7 @@ protected:
>  
>  private:
>  	int init();
> +	void enumerateDevices();
>  	void cleanup();
>  
>  	CameraManager *cm_;
> @@ -121,11 +122,20 @@ int CameraManager::Private::init()
>  		return -ENODEV;
>  
>  	/*
> -	 * TODO: Try to read handlers and order from configuration
> +	 * \todo Try to read handlers and order from configuration
>  	 * file and only fallback on all handlers if there is no
>  	 * configuration file.
>  	 */
> -	std::vector<PipelineHandlerFactory *> &factories = PipelineHandlerFactory::factories();

The \todo comment above hugs this line. Shouldn't it move to
CameraManager::Private::enumerateDevices() with the factories variable?


> +
> +	enumerateDevices();
> +
> +	return 0;
> +}
> +
> +void CameraManager::Private::enumerateDevices()
> +{
> +	std::vector<PipelineHandlerFactory *> &factories =
> +		PipelineHandlerFactory::factories();
>  
>  	for (PipelineHandlerFactory *factory : factories) {
>  		/*
> @@ -144,14 +154,12 @@ int CameraManager::Private::init()
>  		}
>  	}
>  
> -	/* TODO: register hot-plug callback here */
> -
> -	return 0;
> +	/* \todo register hot-plug callback here */
>  }
>  
>  void CameraManager::Private::cleanup()
>  {
> -	/* TODO: unregister hot-plug callback here */
> +	/* \todo unregister hot-plug callback here */
>  
>  	/*
>  	 * Release all references to cameras and pipeline handlers to ensure
> 

-- 
Regards
--
Kieran


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