[libcamera-devel] [SimpleCam PATCH 1/4] simple-cam: Use a unique_ptr for the CameraManager
Kieran Bingham
kieran.bingham at ideasonboard.com
Tue Aug 24 16:24:47 CEST 2021
The CameraManager should be released when it is no longer used. A
unique_ptr will handle this automatically, and convey the lifetime of
the object.
Update simple-cam to show that managing the lifetime of the
CameraManager is recommended practice.
Signed-off-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
---
simple-cam.cpp | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/simple-cam.cpp b/simple-cam.cpp
index 8f7012b83b6c..5c16db67700c 100644
--- a/simple-cam.cpp
+++ b/simple-cam.cpp
@@ -131,8 +131,15 @@ int main()
*
* The CameraManager provides a list of available Cameras that
* applications can operate on.
+ *
+ * When the CameraManager is no longer to be used, it should be deleted.
+ * We use a unique_ptr here to manage the lifetime automatically during
+ * the scope of this function.
+ *
+ * There can only be a single CameraManager constructed within any
+ * process space.
*/
- CameraManager *cm = new CameraManager();
+ std::unique_ptr<CameraManager> cm = std::make_unique<CameraManager>();
cm->start();
/*
--
2.30.2
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