[libcamera-devel] [PATCH 02/18] libcamera: thread: Wake up target thread when moving objects
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Mon Aug 12 14:46:26 CEST 2019
When moving an object to a different thread, messages posted for the
object are moved to the message queue of the new thread. Wake up the new
thread to ensure it processes the moved messages.
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
src/libcamera/thread.cpp | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/src/libcamera/thread.cpp b/src/libcamera/thread.cpp
index 5d46eeb8d3a5..6f86e4a90a05 100644
--- a/src/libcamera/thread.cpp
+++ b/src/libcamera/thread.cpp
@@ -464,6 +464,8 @@ void Thread::moveObject(Object *object)
/* Move pending messages to the message queue of the new thread. */
if (object->pendingMessages_) {
+ unsigned int movedMessages = 0;
+
for (std::unique_ptr<Message> &msg : currentData->messages_.list_) {
if (!msg)
continue;
@@ -471,6 +473,14 @@ void Thread::moveObject(Object *object)
continue;
targetData->messages_.list_.push_back(std::move(msg));
+ movedMessages++;
+ }
+
+ if (movedMessages) {
+ EventDispatcher *dispatcher =
+ targetData->dispatcher_.load(std::memory_order_acquire);
+ if (dispatcher)
+ dispatcher->interrupt();
}
}
--
Regards,
Laurent Pinchart
More information about the libcamera-devel
mailing list