From e3a3a4db4766725fef04a61b91451777c5f6219e Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 18 Jul 2020 00:20:03 +0100
Subject: [PATCH] impl InstanceGuard::destroy

---
 src/global.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/global.rs b/src/global.rs
index c23537c1..59b20bdf 100644
--- a/src/global.rs
+++ b/src/global.rs
@@ -141,6 +141,16 @@ impl InstanceGuard<'_> {
     Id::global_tokens(PRIVATE_Y).write().unwrap().insert(token, iad);
   }
 
+  pub fn destroy(mut self) {
+    Self::forget_all_tokens(&mut self.ig.tokens_players);
+    Self::forget_all_tokens(&mut self.ig.tokens_clients);
+  }
+  fn forget_all_tokens<Id:AccessId>(tokens: &mut TokenRegistry<Id>) {
+    let global : &RwLock<TokenTable<Id>> = AccessId::global_tokens(PRIVATE_Y);
+    let mut global = global.write().unwrap();
+    for t in tokens.tr.drain() { global.remove(&t); }
+  }
+
   #[throws(OE)]
   fn save_game_now(&mut self) { eprintln!("xxx would save!"); }
   #[throws(OE)]
-- 
2.30.2