Started Room, publisher negotiation, add RTCRuntime dependencies across webrtc instances

crates/livekit-core/src/lk_runtime.rs

@@ -3,17 +3,21 @@ use log::trace;
 use livekit_webrtc::peer_connection_factory::PeerConnectionFactory;
 use livekit_webrtc::webrtc::RTCRuntime;
 
+/// SAFETY: The order of initialization and deletion is important for LKRuntime.
+/// See the C++ constructors & destructor of these fields
+
 pub struct LKRuntime {
-    pub rtc_runtime: RTCRuntime,
     pub pc_factory: PeerConnectionFactory,
+    pub rtc_runtime: RTCRuntime,
 }
 
 impl LKRuntime {
     pub fn new() -> Self {
         trace!("LKRuntime::new()");
+        let rtc_runtime = RTCRuntime::new();
         Self {
-            rtc_runtime: RTCRuntime::new(),
-            pc_factory: PeerConnectionFactory::new(),
+            pc_factory: PeerConnectionFactory::new(rtc_runtime.clone()),
+            rtc_runtime,
         }
     }
 }