[libcamera-devel,2/3] libcamera: use const reference for range loops
diff mbox series

Message ID 20220814095241.137108-2-Rauch.Christian@gmx.de
State Superseded
Headers show
Series
  • [libcamera-devel,1/3] libcamera: remove unused header
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Commit Message

Christian Rauch Aug. 14, 2022, 9:52 a.m. UTC
Signed-off-by: Christian Rauch <Rauch.Christian@gmx.de>
---
 src/libcamera/camera_manager.cpp             | 2 +-
 src/libcamera/device_enumerator.cpp          | 2 +-
 src/libcamera/pipeline/uvcvideo/uvcvideo.cpp | 5 +----
 src/libcamera/pipeline/vimc/vimc.cpp         | 2 +-
 src/libcamera/pipeline_handler.cpp           | 2 +-
 5 files changed, 5 insertions(+), 8 deletions(-)

--
2.34.1

Comments

Laurent Pinchart Aug. 16, 2022, 3:48 a.m. UTC | #1
Hi Christian,

Thank you for the patch.

On Sun, Aug 14, 2022 at 11:52:40AM +0200, Christian Rauch via libcamera-devel wrote:
> Signed-off-by: Christian Rauch <Rauch.Christian@gmx.de>

Ah, that's better, the SoB line is there, but the commit message is
still missing :-)

> ---
>  src/libcamera/camera_manager.cpp             | 2 +-
>  src/libcamera/device_enumerator.cpp          | 2 +-
>  src/libcamera/pipeline/uvcvideo/uvcvideo.cpp | 5 +----
>  src/libcamera/pipeline/vimc/vimc.cpp         | 2 +-
>  src/libcamera/pipeline_handler.cpp           | 2 +-
>  5 files changed, 5 insertions(+), 8 deletions(-)
> 
> diff --git a/src/libcamera/camera_manager.cpp b/src/libcamera/camera_manager.cpp
> index 70d73822..7ff4bc6f 100644
> --- a/src/libcamera/camera_manager.cpp
> +++ b/src/libcamera/camera_manager.cpp
> @@ -189,7 +189,7 @@ void CameraManager::Private::addCamera(std::shared_ptr<Camera> camera,
>  {
>  	MutexLocker locker(mutex_);
> 
> -	for (std::shared_ptr<Camera> c : cameras_) {
> +	for (const std::shared_ptr<Camera> &c : cameras_) {
>  		if (c->id() == camera->id()) {
>  			LOG(Camera, Fatal)
>  				<< "Trying to register a camera with a duplicated ID '"
> diff --git a/src/libcamera/device_enumerator.cpp b/src/libcamera/device_enumerator.cpp
> index d1258050..f2e055de 100644
> --- a/src/libcamera/device_enumerator.cpp
> +++ b/src/libcamera/device_enumerator.cpp
> @@ -161,7 +161,7 @@ std::unique_ptr<DeviceEnumerator> DeviceEnumerator::create()
> 
>  DeviceEnumerator::~DeviceEnumerator()
>  {
> -	for (std::shared_ptr<MediaDevice> media : devices_) {
> +	for (const std::shared_ptr<MediaDevice> &media : devices_) {
>  		if (media->busy())
>  			LOG(DeviceEnumerator, Error)
>  				<< "Removing media device " << media->deviceNode()
> diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> index fbe02cdc..0306f56c 100644
> --- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> +++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
> @@ -340,10 +340,7 @@ int PipelineHandlerUVC::processControls(UVCCameraData *data, Request *request)
>  {
>  	ControlList controls(data->video_->controls());
> 
> -	for (auto it : request->controls()) {
> -		unsigned int id = it.first;
> -		ControlValue &value = it.second;
> -
> +	for (const auto &[id, value] : request->controls()) {

Technically speaking this does more than using a const reference. I
don't mind bundling it in this patch, but it should then be mentioned in
the commit message.

>  		processControl(&controls, id, value);
>  	}

No need for curly braces anymore.

> 
> diff --git a/src/libcamera/pipeline/vimc/vimc.cpp b/src/libcamera/pipeline/vimc/vimc.cpp
> index 153cf849..d2f2e460 100644
> --- a/src/libcamera/pipeline/vimc/vimc.cpp
> +++ b/src/libcamera/pipeline/vimc/vimc.cpp
> @@ -378,7 +378,7 @@ int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
>  {
>  	ControlList controls(data->sensor_->controls());
> 
> -	for (auto it : request->controls()) {
> +	for (const auto &it : request->controls()) {
>  		unsigned int id = it.first;
>  		unsigned int offset;
>  		uint32_t cid;
> diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
> index 7d2d00ef..e5cb751c 100644
> --- a/src/libcamera/pipeline_handler.cpp
> +++ b/src/libcamera/pipeline_handler.cpp
> @@ -616,7 +616,7 @@ void PipelineHandler::disconnect()
>  	 */
>  	std::vector<std::weak_ptr<Camera>> cameras{ std::move(cameras_) };
> 
> -	for (std::weak_ptr<Camera> ptr : cameras) {
> +	for (const std::weak_ptr<Camera> &ptr : cameras) {
>  		std::shared_ptr<Camera> camera = ptr.lock();
>  		if (!camera)
>  			continue;

Patch
diff mbox series

diff --git a/src/libcamera/camera_manager.cpp b/src/libcamera/camera_manager.cpp
index 70d73822..7ff4bc6f 100644
--- a/src/libcamera/camera_manager.cpp
+++ b/src/libcamera/camera_manager.cpp
@@ -189,7 +189,7 @@  void CameraManager::Private::addCamera(std::shared_ptr<Camera> camera,
 {
 	MutexLocker locker(mutex_);

-	for (std::shared_ptr<Camera> c : cameras_) {
+	for (const std::shared_ptr<Camera> &c : cameras_) {
 		if (c->id() == camera->id()) {
 			LOG(Camera, Fatal)
 				<< "Trying to register a camera with a duplicated ID '"
diff --git a/src/libcamera/device_enumerator.cpp b/src/libcamera/device_enumerator.cpp
index d1258050..f2e055de 100644
--- a/src/libcamera/device_enumerator.cpp
+++ b/src/libcamera/device_enumerator.cpp
@@ -161,7 +161,7 @@  std::unique_ptr<DeviceEnumerator> DeviceEnumerator::create()

 DeviceEnumerator::~DeviceEnumerator()
 {
-	for (std::shared_ptr<MediaDevice> media : devices_) {
+	for (const std::shared_ptr<MediaDevice> &media : devices_) {
 		if (media->busy())
 			LOG(DeviceEnumerator, Error)
 				<< "Removing media device " << media->deviceNode()
diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
index fbe02cdc..0306f56c 100644
--- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
+++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
@@ -340,10 +340,7 @@  int PipelineHandlerUVC::processControls(UVCCameraData *data, Request *request)
 {
 	ControlList controls(data->video_->controls());

-	for (auto it : request->controls()) {
-		unsigned int id = it.first;
-		ControlValue &value = it.second;
-
+	for (const auto &[id, value] : request->controls()) {
 		processControl(&controls, id, value);
 	}

diff --git a/src/libcamera/pipeline/vimc/vimc.cpp b/src/libcamera/pipeline/vimc/vimc.cpp
index 153cf849..d2f2e460 100644
--- a/src/libcamera/pipeline/vimc/vimc.cpp
+++ b/src/libcamera/pipeline/vimc/vimc.cpp
@@ -378,7 +378,7 @@  int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
 {
 	ControlList controls(data->sensor_->controls());

-	for (auto it : request->controls()) {
+	for (const auto &it : request->controls()) {
 		unsigned int id = it.first;
 		unsigned int offset;
 		uint32_t cid;
diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
index 7d2d00ef..e5cb751c 100644
--- a/src/libcamera/pipeline_handler.cpp
+++ b/src/libcamera/pipeline_handler.cpp
@@ -616,7 +616,7 @@  void PipelineHandler::disconnect()
 	 */
 	std::vector<std::weak_ptr<Camera>> cameras{ std::move(cameras_) };

-	for (std::weak_ptr<Camera> ptr : cameras) {
+	for (const std::weak_ptr<Camera> &ptr : cameras) {
 		std::shared_ptr<Camera> camera = ptr.lock();
 		if (!camera)
 			continue;