From 32e525f8edf67359ac36f38d95a357512229e414 Mon Sep 17 00:00:00 2001
From: Nicolas James <Eele1Ephe7uZahRie@tutanota.com>
Date: Thu, 2 Apr 2026 11:10:53 +1100
Subject: Fix potential for early semaphore submission with Reflex

---
 src/swapchain_monitor.hh | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/swapchain_monitor.hh')

diff --git a/src/swapchain_monitor.hh b/src/swapchain_monitor.hh
index e8603b5..eaf4933 100644
--- a/src/swapchain_monitor.hh
+++ b/src/swapchain_monitor.hh
@@ -12,6 +12,7 @@
 #include <mutex>
 #include <thread>
 
+#include "instance_context.hh"
 #include "queue_context.hh"
 
 namespace low_latency {
@@ -69,7 +70,14 @@ class ReflexSwapchainMonitor final : public SwapchainMonitor {
       public:
         void signal(const DeviceContext& device) const;
     };
-    std::deque<WakeupSemaphore> wakeup_semaphores;
+
+    // A pairing of semaphore -> submissions.
+    // If the Submissions completes then signal the bundled semaphore.
+    struct SemaphoreSubmissions {
+        WakeupSemaphore wakeup_semaphore;
+        std::unique_ptr<QueueContext::Submissions> submissions;
+    };
+    std::deque<SemaphoreSubmissions> semaphore_submissions;
 
     std::mutex mutex;
     std::condition_variable_any cv;
-- 
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