From 4d9db06d669044c0c461a2aed79c85c7fe32a502 Mon Sep 17 00:00:00 2001
From: Han-Lin Chen <hanlinchen@chromium.org>
Date: Tue, 29 Oct 2024 08:57:55 +0000
Subject: libcamera: add method to set thread affinity

Add method to set thread affinity to Thread class.

Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 include/libcamera/base/thread.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include')

diff --git a/include/libcamera/base/thread.h b/include/libcamera/base/thread.h
index 4f33de63..3209d4f7 100644
--- a/include/libcamera/base/thread.h
+++ b/include/libcamera/base/thread.h
@@ -15,6 +15,7 @@
 
 #include <libcamera/base/message.h>
 #include <libcamera/base/signal.h>
+#include <libcamera/base/span.h>
 #include <libcamera/base/utils.h>
 
 namespace libcamera {
@@ -35,6 +36,8 @@ public:
 	void exit(int code = 0);
 	bool wait(utils::duration duration = utils::duration::max());
 
+	int setThreadAffinity(const Span<const unsigned int> &cpus);
+
 	bool isRunning();
 
 	Signal<> finished;
@@ -54,6 +57,8 @@ private:
 	void startThread();
 	void finishThread();
 
+	void setThreadAffinityInternal();
+
 	void postMessage(std::unique_ptr<Message> msg, Object *receiver);
 	void removeMessages(Object *receiver);
 
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