removes redundant NewConnectionConfig trait (#31979)

Working towards removing hard-coded TPU specific configurations from
QUIC code; NewConnectionConfig is redundant and gets in the way.

bench-tps/src/bench_tps_client/tpu_client.rs

@@ -1,9 +1,7 @@
 use {
     crate::bench_tps_client::{BenchTpsClient, BenchTpsError, Result},
     solana_client::tpu_client::TpuClient,
-    solana_connection_cache::connection_cache::{
-        ConnectionManager, ConnectionPool, NewConnectionConfig,
-    },
+    solana_connection_cache::connection_cache::{ConnectionManager, ConnectionPool},
     solana_sdk::{
         account::Account, commitment_config::CommitmentConfig, epoch_info::EpochInfo, hash::Hash,
         message::Message, pubkey::Pubkey, signature::Signature, transaction::Transaction,
@@ -14,7 +12,6 @@ impl<P, M, C> BenchTpsClient for TpuClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     fn send_transaction(&self, transaction: Transaction) -> Result<Signature> {
         let signature = transaction.signatures[0];

client/src/connection_cache.rs

@@ -5,7 +5,6 @@ use {
         client_connection::ClientConnection,
         connection_cache::{
             BaseClientConnection, ConnectionCache as BackendConnectionCache, ConnectionPool,
-            NewConnectionConfig,
         },
     },
     solana_quic_client::{QuicConfig, QuicConnectionManager, QuicPool},

client/src/nonblocking/tpu_client.rs

@@ -3,7 +3,6 @@ use {
     crate::{connection_cache::ConnectionCache, tpu_client::TpuClientConfig},
     solana_connection_cache::connection_cache::{
         ConnectionCache as BackendConnectionCache, ConnectionManager, ConnectionPool,
-        NewConnectionConfig,
     },
     solana_quic_client::{QuicConfig, QuicConnectionManager, QuicPool},
     solana_rpc_client::nonblocking::rpc_client::RpcClient,
@@ -31,7 +30,6 @@ impl<P, M, C> TpuClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     /// Serialize and send transaction to the current and upcoming leader TPUs according to fanout
     /// size
@@ -101,7 +99,6 @@ impl<P, M, C> TpuClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     /// Create a new client that disconnects when dropped
     pub async fn new_with_connection_cache(

client/src/tpu_client.rs

@@ -2,7 +2,6 @@ use {
     crate::connection_cache::ConnectionCache,
     solana_connection_cache::connection_cache::{
         ConnectionCache as BackendConnectionCache, ConnectionManager, ConnectionPool,
-        NewConnectionConfig,
     },
     solana_quic_client::{QuicConfig, QuicConnectionManager, QuicPool},
     solana_rpc_client::rpc_client::RpcClient,
@@ -35,7 +34,6 @@ impl<P, M, C> TpuClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     /// Serialize and send transaction to the current and upcoming leader TPUs according to fanout
     /// size
@@ -92,7 +90,6 @@ impl<P, M, C> TpuClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     /// Create a new client that disconnects when dropped
     pub fn new_with_connection_cache(

connection-cache/src/connection_cache.rs

@@ -29,7 +29,7 @@ pub enum Protocol {
 
 pub trait ConnectionManager {
     type ConnectionPool: ConnectionPool;
-    type NewConnectionConfig: NewConnectionConfig;
+    type NewConnectionConfig;
 
     const PROTOCOL: Protocol;
 
@@ -55,7 +55,6 @@ impl<P, M, C> ConnectionCache<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     pub fn new(
         name: &'static str,
@@ -300,12 +299,8 @@ pub enum ClientError {
     IoError(#[from] std::io::Error),
 }
 
-pub trait NewConnectionConfig: Sized {
-    fn new() -> Result<Self, ClientError>;
-}
-
 pub trait ConnectionPool {
-    type NewConnectionConfig: NewConnectionConfig;
+    type NewConnectionConfig;
     type BaseClientConnection: BaseClientConnection;
 
     /// Add a connection to the pool
@@ -441,7 +436,7 @@ mod tests {
         }
     }
 
-    impl NewConnectionConfig for MockUdpConfig {
+    impl MockUdpConfig {
         fn new() -> Result<Self, ClientError> {
             Ok(Self {
                 udp_socket: Arc::new(

quic-client/src/lib.rs

@@ -19,7 +19,7 @@ use {
     solana_connection_cache::{
         connection_cache::{
             BaseClientConnection, ClientError, ConnectionManager, ConnectionPool,
-            ConnectionPoolError, NewConnectionConfig, Protocol,
+            ConnectionPoolError, Protocol,
         },
         connection_cache_stats::ConnectionCacheStats,
     },
@@ -89,8 +89,8 @@ pub struct QuicConfig {
     client_endpoint: Option<Endpoint>,
 }
 
-impl NewConnectionConfig for QuicConfig {
-    fn new() -> Result<Self, ClientError> {
+impl QuicConfig {
+    pub fn new() -> Result<Self, ClientError> {
         let (cert, priv_key) =
             new_self_signed_tls_certificate(&Keypair::new(), IpAddr::V4(Ipv4Addr::UNSPECIFIED))?;
         Ok(Self {

thin-client/src/thin_client.rs

@@ -8,9 +8,7 @@ use {
     rayon::iter::{IntoParallelIterator, ParallelIterator},
     solana_connection_cache::{
         client_connection::ClientConnection,
-        connection_cache::{
-            ConnectionCache, ConnectionManager, ConnectionPool, NewConnectionConfig,
-        },
+        connection_cache::{ConnectionCache, ConnectionManager, ConnectionPool},
     },
     solana_rpc_client::rpc_client::RpcClient,
     solana_rpc_client_api::{config::RpcProgramAccountsConfig, response::Response},
@@ -126,7 +124,6 @@ impl<P, M, C> ThinClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     /// Create a new ThinClient that will interface with the Rpc at `rpc_addr` using TCP
     /// and the Tpu at `tpu_addr` over `transactions_socket` using Quic or UDP
@@ -327,7 +324,6 @@ impl<P, M, C> Client for ThinClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     fn tpu_addr(&self) -> String {
         self.tpu_addr().to_string()
@@ -338,7 +334,6 @@ impl<P, M, C> SyncClient for ThinClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     fn send_and_confirm_message<T: Signers + ?Sized>(
         &self,
@@ -623,7 +618,6 @@ impl<P, M, C> AsyncClient for ThinClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     fn async_send_versioned_transaction(
         &self,

tpu-client/src/nonblocking/tpu_client.rs

@@ -6,7 +6,7 @@ use {
     log::*,
     solana_connection_cache::{
         connection_cache::{
-            ConnectionCache, ConnectionManager, ConnectionPool, NewConnectionConfig, Protocol,
+            ConnectionCache, ConnectionManager, ConnectionPool, Protocol,
             DEFAULT_CONNECTION_POOL_SIZE,
         },
         nonblocking::client_connection::ClientConnection,
@@ -280,7 +280,6 @@ async fn send_wire_transaction_to_addr<P, M, C>(
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     let conn = connection_cache.get_nonblocking_connection(addr);
     conn.send_data(&wire_transaction).await
@@ -294,7 +293,6 @@ async fn send_wire_transaction_batch_to_addr<P, M, C>(
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     let conn = connection_cache.get_nonblocking_connection(addr);
     conn.send_data_batch(wire_transactions).await
@@ -304,7 +302,6 @@ impl<P, M, C> TpuClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     /// Serialize and send transaction to the current and upcoming leader TPUs according to fanout
     /// size

tpu-client/src/tpu_client.rs

@@ -3,7 +3,7 @@ use {
     crate::nonblocking::tpu_client::TpuClient as NonblockingTpuClient,
     rayon::iter::{IntoParallelIterator, ParallelIterator},
     solana_connection_cache::connection_cache::{
-        ConnectionCache, ConnectionManager, ConnectionPool, NewConnectionConfig,
+        ConnectionCache, ConnectionManager, ConnectionPool,
     },
     solana_rpc_client::rpc_client::RpcClient,
     solana_sdk::{clock::Slot, transaction::Transaction, transport::Result as TransportResult},
@@ -71,7 +71,6 @@ impl<P, M, C> TpuClient<P, M, C>
 where
     P: ConnectionPool<NewConnectionConfig = C>,
     M: ConnectionManager<ConnectionPool = P, NewConnectionConfig = C>,
-    C: NewConnectionConfig,
 {
     /// Serialize and send transaction to the current and upcoming leader TPUs according to fanout
     /// size

udp-client/src/lib.rs

@@ -11,7 +11,7 @@ use {
     solana_connection_cache::{
         connection_cache::{
             BaseClientConnection, ClientError, ConnectionManager, ConnectionPool,
-            ConnectionPoolError, NewConnectionConfig, Protocol,
+            ConnectionPoolError, Protocol,
         },
         connection_cache_stats::ConnectionCacheStats,
     },
@@ -57,7 +57,7 @@ pub struct UdpConfig {
     udp_socket: Arc<UdpSocket>,
 }
 
-impl NewConnectionConfig for UdpConfig {
+impl UdpConfig {
     fn new() -> Result<Self, ClientError> {
         let socket = solana_net_utils::bind_with_any_port(IpAddr::V4(Ipv4Addr::UNSPECIFIED))
             .map_err(Into::<ClientError>::into)?;