[libcamera-devel,v5,4/7] libcamera: request: Add empty() method

997 diff mbox series

Add method to verify if a request has pending buffers yet to be
completed or it is empty and ready from completion.

Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
---
 include/libcamera/request.h |  2 ++
 src/libcamera/request.cpp   | 11 +++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

Hi Jacopo,

Thank you for the patch.

On Tue, Apr 16, 2019 at 01:18:56AM +0200, Jacopo Mondi wrote:
> Add method to verify if a request has pending buffers yet to be
> completed or it is empty and ready from completion.
> 
> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
> ---
>  include/libcamera/request.h |  2 ++
>  src/libcamera/request.cpp   | 11 +++++++++--
>  2 files changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/include/libcamera/request.h b/include/libcamera/request.h
> index 0dbd425115e8..6f97aa177ae0 100644
> --- a/include/libcamera/request.h
> +++ b/include/libcamera/request.h
> @@ -37,6 +37,8 @@ public:
>  
>  	Status status() const { return status_; }
>  
> +	bool empty() const { return pending_.empty(); }

How about hasPendingBuffers() ?

> +
>  private:
>  	friend class Camera;
>  	friend class PipelineHandler;
> diff --git a/src/libcamera/request.cpp b/src/libcamera/request.cpp
> index e0e77e972411..33055c5ac533 100644
> --- a/src/libcamera/request.cpp
> +++ b/src/libcamera/request.cpp
> @@ -106,6 +106,13 @@ Buffer *Request::findBuffer(Stream *stream) const
>   * \return The request completion status
>   */
>  
> +/**
> + * \fn Request::empty()
> + * \brief Retrieve if a request has buffers yet to be completed
> + *
> + * \return True if no buffer is pending for completion, false otherwise
> + */
> +
>  /**
>   * \brief Prepare the resources for the completion handler
>   */
> @@ -127,7 +134,7 @@ int Request::prepare()
>   */
>  void Request::complete(Status status)
>  {
> -	ASSERT(pending_.empty());
> +	ASSERT(empty());
>  	status_ = status;
>  }
>  
> @@ -149,7 +156,7 @@ bool Request::completeBuffer(Buffer *buffer)
>  	int ret = pending_.erase(buffer);
>  	ASSERT(ret == 1);
>  
> -	return pending_.empty();
> +	return empty();
>  }
>  
>  } /* namespace libcamera */