remove arc for sctp::aid_generator_factory

sctp/src/config.rs

@@ -1,6 +1,7 @@
 use crate::util::{AssociationIdGenerator, RandomAssociationIdGenerator};
 
 use std::fmt;
+use std::rc::Rc;
 use std::sync::Arc;
 
 /// MTU for inbound packet (from DTLS)
@@ -81,7 +82,7 @@ pub struct EndpointConfig {
     /// AID generator factory
     ///
     /// Create a aid generator for local aid in Endpoint struct
-    pub(crate) aid_generator_factory: Arc<dyn Fn() -> Box<dyn AssociationIdGenerator>>,
+    pub(crate) aid_generator_factory: Rc<dyn Fn() -> Box<dyn AssociationIdGenerator>>,
 }
 
 impl Default for EndpointConfig {
@@ -97,7 +98,7 @@ impl EndpointConfig {
             || Box::<RandomAssociationIdGenerator>::default();
         Self {
             max_payload_size: INITIAL_MTU - (COMMON_HEADER_SIZE + DATA_CHUNK_HEADER_SIZE),
-            aid_generator_factory: Arc::new(aid_factory),
+            aid_generator_factory: Rc::new(aid_factory),
         }
     }
 
@@ -115,7 +116,7 @@ impl EndpointConfig {
         &mut self,
         factory: F,
     ) -> &mut Self {
-        self.aid_generator_factory = Arc::new(factory);
+        self.aid_generator_factory = Rc::new(factory);
         self
     }