implement clear_cache() for resolver service

Signed-off-by: Jason Volk <jason@zemos.net>

src/service/resolver/cache.rs

@@ -7,7 +7,7 @@ use conduwuit::{
 	utils::{math::Expected, rand, stream::TryIgnore},
 };
 use database::{Cbor, Deserialized, Map};
-use futures::{Stream, StreamExt};
+use futures::{Stream, StreamExt, future::join};
 use ruma::ServerName;
 use serde::{Deserialize, Serialize};
 
@@ -45,6 +45,21 @@ impl Cache {
 	}
 }
 
+#[implement(Cache)]
+pub async fn clear(&self) { join(self.clear_destinations(), self.clear_overrides()).await; }
+
+#[implement(Cache)]
+pub async fn clear_destinations(&self) { self.destinations.clear().await; }
+
+#[implement(Cache)]
+pub async fn clear_overrides(&self) { self.overrides.clear().await; }
+
+#[implement(Cache)]
+pub fn del_destination(&self, name: &ServerName) { self.destinations.remove(name); }
+
+#[implement(Cache)]
+pub fn del_override(&self, name: &ServerName) { self.overrides.remove(name); }
+
 #[implement(Cache)]
 pub fn set_destination(&self, name: &ServerName, dest: &CachedDest) {
 	self.destinations.raw_put(name, Cbor(dest));