Fix overflow in `awaiting_pong_timer...` with too many peers

If we have more than
127 / `MAX_BUFFER_DRAIN_TICK_INTERVALS_PER_PEER` (31) peers,
`awaiting_pong_timer_tick_intervals` can overflow before we hit
the limit. This isn't super harmful, we'll still disconnect peers
as long as they don't send *any* messages between two pings, but it
does cause us to not disconnect peers which are extremely slow in
responding to messages, e.g. because they are overloaded.

diff --git a/lightning/src/ln/peer_handler.rs b/lightning/src/ln/peer_handler.rs
index 84870143008a3f19bd47fe2a303a897760bba516..040ccc655f4b93187ea52eefce46ecbe166aa8d9 100644 (file)
--- a/lightning/src/ln/peer_handler.rs
+++ b/lightning/src/ln/peer_handler.rs
@@ -416,7 +416,7 @@ struct Peer {
        sync_status: InitSyncTracker,
 
        msgs_sent_since_pong: usize,
-       awaiting_pong_timer_tick_intervals: i8,
+       awaiting_pong_timer_tick_intervals: i64,
        received_message_since_timer_tick: bool,
        sent_gossip_timestamp_filter: bool,