From f6965c62a97a87f3b9d214e515ae34a2cafa092f Mon Sep 17 00:00:00 2001
From: Marcos Slomp <slomp@adobe.com>
Date: Tue, 2 Dec 2025 10:54:08 -0800
Subject: [PATCH] reminder

---
 public/client/TracySysTrace.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/public/client/TracySysTrace.cpp b/public/client/TracySysTrace.cpp
index cb1974e3..a0323800 100644
--- a/public/client/TracySysTrace.cpp
+++ b/public/client/TracySysTrace.cpp
@@ -147,6 +147,10 @@ void WINAPI EventRecordCallback( PEVENT_RECORD record )
 #endif
 
     const auto& hdr = record->EventHeader;
+    // WARN: doing a fast switch-match below with the top 32 bits of the GUID
+    // (Data1 is the leading 32bit word of the 128bit GUID).
+    // Ideally, we should be using 'IsEqualGUID()' inside each case match to be
+    // inequivocally sure we are dealing the correct event provider.
     switch( hdr.ProviderId.Data1 )
     {
     case etw::ThreadGuid.Data1: