[RFC,v5,1/9] libcamera: process: Disable copy/move
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Message ID 20250424114103.451395-2-barnabas.pocze@ideasonboard.com
State New
Headers show
Series
  • libcamera: process: Remove `ProcessManager` singleton
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Commit Message

Barnabás Pőcze April 24, 2025, 11:40 a.m. UTC 
A `Process` object has address identity because a pointer to it is
stored inside the `ProcessManager`. However, copy/move special
methods are still generated by the compiler. So disable them to
avoid potential issues and confusion.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 include/libcamera/internal/process.h | 3 +++
 1 file changed, 3 insertions(+)

Patch
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diff --git a/include/libcamera/internal/process.h b/include/libcamera/internal/process.h
index b1d07a5a5..6c34aef2f 100644
--- a/include/libcamera/internal/process.h
+++ b/include/libcamera/internal/process.h
@@ -11,6 +11,7 @@ 
 #include <string>
 #include <vector>
 
+#include <libcamera/base/class.h>
 #include <libcamera/base/signal.h>
 #include <libcamera/base/unique_fd.h>
 
@@ -42,6 +43,8 @@  public:
 	Signal<enum ExitStatus, int> finished;
 
 private:
+	LIBCAMERA_DISABLE_COPY_AND_MOVE(Process)
+
 	void closeAllFdsExcept(const std::vector<int> &fds);
 	int isolate();
 	void died(int wstatus);