remove async_trait for traits declared in garage_net

src/block/manager.rs

@@ -4,7 +4,6 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use arc_swap::{ArcSwap, ArcSwapOption};
-use async_trait::async_trait;
 use bytes::Bytes;
 use rand::prelude::*;
 use serde::{Deserialize, Serialize};
@@ -688,7 +687,6 @@ impl BlockManager {
 	}
 }
 
-#[async_trait]
 impl StreamingEndpointHandler<BlockRpc> for BlockManager {
 	async fn handle(self: &Arc<Self>, mut message: Req<BlockRpc>, _from: NodeID) -> Resp<BlockRpc> {
 		match message.msg() {

src/garage/admin/mod.rs

@@ -4,9 +4,11 @@ mod key;
 
 use std::collections::HashMap;
 use std::fmt::Write;
+use std::future::Future;
 use std::sync::Arc;
 
-use async_trait::async_trait;
+use futures::future::FutureExt;
+
 use serde::{Deserialize, Serialize};
 
 use format_table::format_table_to_string;
@@ -505,22 +507,25 @@ impl AdminRpcHandler {
 	}
 }
 
-#[async_trait]
 impl EndpointHandler<AdminRpc> for AdminRpcHandler {
-	async fn handle(
+	fn handle(
 		self: &Arc<Self>,
 		message: &AdminRpc,
 		_from: NodeID,
-	) -> Result<AdminRpc, Error> {
-		match message {
-			AdminRpc::BucketOperation(bo) => self.handle_bucket_cmd(bo).await,
-			AdminRpc::KeyOperation(ko) => self.handle_key_cmd(ko).await,
-			AdminRpc::LaunchRepair(opt) => self.handle_launch_repair(opt.clone()).await,
-			AdminRpc::Stats(opt) => self.handle_stats(opt.clone()).await,
-			AdminRpc::Worker(wo) => self.handle_worker_cmd(wo).await,
-			AdminRpc::BlockOperation(bo) => self.handle_block_cmd(bo).await,
-			AdminRpc::MetaOperation(mo) => self.handle_meta_cmd(mo).await,
-			m => Err(GarageError::unexpected_rpc_message(m).into()),
+	) -> impl Future<Output = Result<AdminRpc, Error>> + Send {
+		let self2 = self.clone();
+		async move {
+			match message {
+				AdminRpc::BucketOperation(bo) => self2.handle_bucket_cmd(bo).await,
+				AdminRpc::KeyOperation(ko) => self2.handle_key_cmd(ko).await,
+				AdminRpc::LaunchRepair(opt) => self2.handle_launch_repair(opt.clone()).await,
+				AdminRpc::Stats(opt) => self2.handle_stats(opt.clone()).await,
+				AdminRpc::Worker(wo) => self2.handle_worker_cmd(wo).await,
+				AdminRpc::BlockOperation(bo) => self2.handle_block_cmd(bo).await,
+				AdminRpc::MetaOperation(mo) => self2.handle_meta_cmd(mo).await,
+				m => Err(GarageError::unexpected_rpc_message(m).into()),
+			}
 		}
+		.boxed()
 	}
 }

src/model/k2v/rpc.rs

@@ -10,7 +10,6 @@ use std::convert::TryInto;
 use std::sync::{Arc, Mutex, MutexGuard};
 use std::time::{Duration, Instant};
 
-use async_trait::async_trait;
 use futures::stream::FuturesUnordered;
 use futures::StreamExt;
 use serde::{Deserialize, Serialize};
@@ -537,7 +536,6 @@ impl K2VRpcHandler {
 	}
 }
 
-#[async_trait]
 impl EndpointHandler<K2VRpc> for K2VRpcHandler {
 	async fn handle(self: &Arc<Self>, message: &K2VRpc, _from: NodeID) -> Result<K2VRpc, Error> {
 		match message {

src/net/Cargo.toml

@@ -22,6 +22,7 @@ tokio.workspace = true
 tokio-util.workspace = true
 tokio-stream.workspace = true
 
+async-trait.workspace = true
 serde.workspace = true
 rmp-serde.workspace = true
 hex.workspace = true
@@ -30,7 +31,6 @@ rand.workspace = true
 
 log.workspace = true
 arc-swap.workspace = true
-async-trait.workspace = true
 err-derive.workspace = true
 bytes.workspace = true
 cfg-if.workspace = true

src/net/client.rs

@@ -6,7 +6,6 @@ use std::sync::{Arc, Mutex};
 use std::task::Poll;
 
 use arc_swap::ArcSwapOption;
-use async_trait::async_trait;
 use bytes::Bytes;
 use log::{debug, error, trace};
 
@@ -220,7 +219,6 @@ impl ClientConn {
 
 impl SendLoop for ClientConn {}
 
-#[async_trait]
 impl RecvLoop for ClientConn {
 	fn recv_handler(self: &Arc<Self>, id: RequestID, stream: ByteStream) {
 		trace!("ClientConn recv_handler {}", id);

src/net/endpoint.rs

@@ -1,8 +1,9 @@
+use std::future::Future;
 use std::marker::PhantomData;
 use std::sync::Arc;
 
 use arc_swap::ArcSwapOption;
-use async_trait::async_trait;
+use futures::future::{BoxFuture, FutureExt};
 
 use crate::error::Error;
 use crate::message::*;
@@ -14,19 +15,17 @@ use crate::netapp::*;
 /// attached to the response..
 ///
 /// The handler object should be in an Arc, see `Endpoint::set_handler`
-#[async_trait]
 pub trait StreamingEndpointHandler<M>: Send + Sync
 where
 	M: Message,
 {
-	async fn handle(self: &Arc<Self>, m: Req<M>, from: NodeID) -> Resp<M>;
+	fn handle(self: &Arc<Self>, m: Req<M>, from: NodeID) -> impl Future<Output = Resp<M>> + Send;
 }
 
 /// If one simply wants to use an endpoint in a client fashion,
 /// without locally serving requests to that endpoint,
 /// use the unit type `()` as the handler type:
 /// it will panic if it is ever made to handle request.
-#[async_trait]
 impl<M: Message> EndpointHandler<M> for () {
 	async fn handle(self: &Arc<()>, _m: &M, _from: NodeID) -> M::Response {
 		panic!("This endpoint should not have a local handler.");
@@ -38,15 +37,13 @@ impl<M: Message> EndpointHandler<M> for () {
 /// This trait should be implemented by an object of your application
 /// that can handle a message of type `M`, in the cases where it doesn't
 /// care about attached stream in the request nor in the response.
-#[async_trait]
 pub trait EndpointHandler<M>: Send + Sync
 where
 	M: Message,
 {
-	async fn handle(self: &Arc<Self>, m: &M, from: NodeID) -> M::Response;
+	fn handle(self: &Arc<Self>, m: &M, from: NodeID) -> impl Future<Output = M::Response> + Send;
 }
 
-#[async_trait]
 impl<T, M> StreamingEndpointHandler<M> for T
 where
 	T: EndpointHandler<M>,
@@ -161,9 +158,8 @@ where
 
 pub(crate) type DynEndpoint = Box<dyn GenericEndpoint + Send + Sync>;
 
-#[async_trait]
 pub(crate) trait GenericEndpoint {
-	async fn handle(&self, req_enc: ReqEnc, from: NodeID) -> Result<RespEnc, Error>;
+	fn handle(&self, req_enc: ReqEnc, from: NodeID) -> BoxFuture<Result<RespEnc, Error>>;
 	fn drop_handler(&self);
 	fn clone_endpoint(&self) -> DynEndpoint;
 }
@@ -174,21 +170,23 @@ where
 	M: Message,
 	H: StreamingEndpointHandler<M>;
 
-#[async_trait]
 impl<M, H> GenericEndpoint for EndpointArc<M, H>
 where
 	M: Message,
 	H: StreamingEndpointHandler<M> + 'static,
 {
-	async fn handle(&self, req_enc: ReqEnc, from: NodeID) -> Result<RespEnc, Error> {
-		match self.0.handler.load_full() {
-			None => Err(Error::NoHandler),
-			Some(h) => {
-				let req = Req::from_enc(req_enc)?;
-				let res = h.handle(req, from).await;
-				Ok(res.into_enc()?)
+	fn handle(&self, req_enc: ReqEnc, from: NodeID) -> BoxFuture<Result<RespEnc, Error>> {
+		async move {
+			match self.0.handler.load_full() {
+				None => Err(Error::NoHandler),
+				Some(h) => {
+					let req = Req::from_enc(req_enc)?;
+					let res = h.handle(req, from).await;
+					Ok(res.into_enc()?)
+				}
 			}
 		}
+		.boxed()
 	}
 
 	fn drop_handler(&self) {

src/net/netapp.rs

@@ -5,7 +5,6 @@ use std::sync::{Arc, RwLock};
 use log::{debug, error, info, trace, warn};
 
 use arc_swap::ArcSwapOption;
-use async_trait::async_trait;
 
 use serde::{Deserialize, Serialize};
 use sodiumoxide::crypto::auth;
@@ -457,7 +456,6 @@ impl NetApp {
 	}
 }
 
-#[async_trait]
 impl EndpointHandler<HelloMessage> for NetApp {
 	async fn handle(self: &Arc<Self>, msg: &HelloMessage, from: NodeID) {
 		debug!("Hello from {:?}: {:?}", hex::encode(&from[..8]), msg);

src/net/peering.rs

@@ -5,7 +5,6 @@ use std::sync::{Arc, RwLock};
 use std::time::{Duration, Instant};
 
 use arc_swap::ArcSwap;
-use async_trait::async_trait;
 use log::{debug, info, trace, warn};
 use serde::{Deserialize, Serialize};
 
@@ -592,7 +591,6 @@ impl PeeringManager {
 	}
 }
 
-#[async_trait]
 impl EndpointHandler<PingMessage> for PeeringManager {
 	async fn handle(self: &Arc<Self>, ping: &PingMessage, from: NodeID) -> PingMessage {
 		let ping_resp = PingMessage {
@@ -604,7 +602,6 @@ impl EndpointHandler<PingMessage> for PeeringManager {
 	}
 }
 
-#[async_trait]
 impl EndpointHandler<PeerListMessage> for PeeringManager {
 	async fn handle(
 		self: &Arc<Self>,

src/net/recv.rs

@@ -1,7 +1,6 @@
 use std::collections::HashMap;
 use std::sync::Arc;
 
-use async_trait::async_trait;
 use bytes::Bytes;
 use log::*;
 
@@ -50,7 +49,6 @@ impl Drop for Sender {
 /// according to the protocol defined above: chunks of message in progress of being
 /// received are stored in a buffer, and when the last chunk of a message is received,
 /// the full message is passed to the receive handler.
-#[async_trait]
 pub(crate) trait RecvLoop: Sync + 'static {
 	fn recv_handler(self: &Arc<Self>, id: RequestID, stream: ByteStream);
 	fn cancel_handler(self: &Arc<Self>, _id: RequestID) {}

src/net/send.rs

@@ -3,7 +3,6 @@ use std::pin::Pin;
 use std::sync::Arc;
 use std::task::{Context, Poll};
 
-use async_trait::async_trait;
 use bytes::{BufMut, Bytes, BytesMut};
 use log::*;
 
@@ -273,7 +272,6 @@ impl DataFrame {
 ///
 /// The `.send_loop()` exits when the sending end of the channel is closed,
 /// or if there is an error at any time writing to the async writer.
-#[async_trait]
 pub(crate) trait SendLoop: Sync {
 	async fn send_loop<W>(
 		self: Arc<Self>,

src/net/server.rs

@@ -3,7 +3,6 @@ use std::net::SocketAddr;
 use std::sync::{Arc, Mutex};
 
 use arc_swap::ArcSwapOption;
-use async_trait::async_trait;
 use log::*;
 
 use futures::io::{AsyncReadExt, AsyncWriteExt};
@@ -174,7 +173,6 @@ impl ServerConn {
 
 impl SendLoop for ServerConn {}
 
-#[async_trait]
 impl RecvLoop for ServerConn {
 	fn recv_handler(self: &Arc<Self>, id: RequestID, stream: ByteStream) {
 		let resp_send = match self.resp_send.load_full() {

src/rpc/system.rs

@@ -7,7 +7,6 @@ use std::sync::{Arc, RwLock, RwLockReadGuard};
 use std::time::{Duration, Instant};
 
 use arc_swap::ArcSwapOption;
-use async_trait::async_trait;
 use futures::join;
 use serde::{Deserialize, Serialize};
 use sodiumoxide::crypto::sign::ed25519;
@@ -749,7 +748,6 @@ impl System {
 	}
 }
 
-#[async_trait]
 impl EndpointHandler<SystemRpc> for System {
 	async fn handle(self: &Arc<Self>, msg: &SystemRpc, from: NodeID) -> Result<SystemRpc, Error> {
 		match msg {

src/table/gc.rs

@@ -4,6 +4,7 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use async_trait::async_trait;
+
 use serde::{Deserialize, Serialize};
 use serde_bytes::ByteBuf;
 
@@ -272,7 +273,6 @@ impl<F: TableSchema, R: TableReplication> TableGc<F, R> {
 	}
 }
 
-#[async_trait]
 impl<F: TableSchema, R: TableReplication> EndpointHandler<GcRpc> for TableGc<F, R> {
 	async fn handle(self: &Arc<Self>, message: &GcRpc, _from: NodeID) -> Result<GcRpc, Error> {
 		match message {

src/table/sync.rs

@@ -444,7 +444,6 @@ impl<F: TableSchema, R: TableReplication> TableSyncer<F, R> {
 
 // ======= SYNCHRONIZATION PROCEDURE -- RECEIVER SIDE ======
 
-#[async_trait]
 impl<F: TableSchema, R: TableReplication> EndpointHandler<SyncRpc> for TableSyncer<F, R> {
 	async fn handle(self: &Arc<Self>, message: &SyncRpc, from: NodeID) -> Result<SyncRpc, Error> {
 		match message {

src/table/table.rs

@@ -2,7 +2,6 @@ use std::borrow::Borrow;
 use std::collections::{BTreeMap, BTreeSet, HashMap};
 use std::sync::Arc;
 
-use async_trait::async_trait;
 use futures::stream::*;
 use serde::{Deserialize, Serialize};
 use serde_bytes::ByteBuf;
@@ -500,7 +499,6 @@ impl<F: TableSchema, R: TableReplication> Table<F, R> {
 	}
 }
 
-#[async_trait]
 impl<F: TableSchema, R: TableReplication> EndpointHandler<TableRpc<F>> for Table<F, R> {
 	async fn handle(
 		self: &Arc<Self>,