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libcamera: camera_manager: Add method to unregister a camera

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The new removeCamera() method is meant to be used by pipeline handlers
to unregister a camera in case of device disconnection.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
This commit is contained in:
Laurent Pinchart 2019-01-24 01:55:17 +02:00
parent 124aaffde0
commit 8897260976
2 changed files with 22 additions and 0 deletions
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1
include/libcamera/camera_manager.h
View file

@ -28,6 +28,7 @@ public:
std::shared_ptr<Camera> get(const std::string &name);
void addCamera(std::shared_ptr<Camera> camera);
void removeCamera(Camera *camera);
static CameraManager *instance();

21
src/libcamera/camera_manager.cpp
View file

@ -191,6 +191,27 @@ void CameraManager::addCamera(std::shared_ptr<Camera> camera)
cameras_.push_back(std::move(camera));
}
/**
* \brief Remove a camera from the camera manager
* \param[in] camera The camera to be removed
*
* This function is called by pipeline handlers to unregister cameras from the
* camera manager. Unregistered cameras won't be reported anymore by the
* cameras() and get() calls, but references may still exist in applications.
*/
void CameraManager::removeCamera(Camera *camera)
{
for (auto iter = cameras_.begin(); iter != cameras_.end(); ++iter) {
if (iter->get() == camera) {
LOG(Camera, Debug)
<< "Unregistering camera '"
<< camera->name() << "'";
cameras_.erase(iter);
return;
}
}
}
/**
* \brief Retrieve the camera manager instance
*