feat: 为 buy 和 sell 方法添加 Signature 返回值

src/trading/core/executor.rs

@@ -1,4 +1,5 @@
 use anyhow::Result;
+use solana_sdk::signature::Signature;
 use std::{sync::Arc, time::Instant};
 
 use super::{
@@ -32,7 +33,7 @@ impl TradeExecutor for GenericTradeExecutor {
         params: BuyParams,
         swqos_clients: Vec<Arc<SwqosClient>>,
         middleware_manager: Option<Arc<MiddlewareManager>>,
-    ) -> Result<()> {
+    ) -> Result<Signature> {
         let mut data_size_limit = params.data_size_limit;
         if data_size_limit == 0 {
             data_size_limit = MAX_LOADED_ACCOUNTS_DATA_SIZE_LIMIT;
@@ -55,7 +56,7 @@ impl TradeExecutor for GenericTradeExecutor {
         println!("Building buy transaction instructions time cost: {:?}", start.elapsed());
 
         // Execute transactions in parallel
-        parallel_execute_with_tips(
+        let sig = parallel_execute_with_tips(
             swqos_clients,
             params.payer,
             final_instructions,
@@ -71,7 +72,7 @@ impl TradeExecutor for GenericTradeExecutor {
         )
         .await?;
 
-        Ok(())
+        Ok(sig)
     }
 
     async fn sell_with_tip(
@@ -79,7 +80,7 @@ impl TradeExecutor for GenericTradeExecutor {
         params: SellParams,
         swqos_clients: Vec<Arc<SwqosClient>>,
         middleware_manager: Option<Arc<MiddlewareManager>>,
-    ) -> Result<()> {
+    ) -> Result<Signature> {
         let start = Instant::now();
 
         // Build instructions directly from params to avoid unnecessary cloning
@@ -97,7 +98,7 @@ impl TradeExecutor for GenericTradeExecutor {
         println!("Building sell transaction instructions time cost: {:?}", start.elapsed());
 
         // Execute transactions in parallel
-        parallel_execute_with_tips(
+        let sig = parallel_execute_with_tips(
             swqos_clients,
             params.payer,
             final_instructions,
@@ -113,7 +114,7 @@ impl TradeExecutor for GenericTradeExecutor {
         )
         .await?;
 
-        Ok(())
+        Ok(sig)
     }
 
     fn protocol_name(&self) -> &'static str {

src/trading/core/parallel.rs

@@ -1,6 +1,9 @@
 use anyhow::{anyhow, Result};
 use solana_hash::Hash;
-use solana_sdk::{instruction::Instruction, pubkey::Pubkey, signature::Keypair};
+// use solana_program::example_mocks::solana_signature::Signature;
+use solana_sdk::{
+    instruction::Instruction, pubkey::Pubkey, signature::Keypair, signature::Signature,
+};
 use std::{str::FromStr, sync::Arc, time::Instant};
 use tokio::sync::mpsc;
 use tokio::task::JoinHandle;
@@ -25,9 +28,9 @@ pub async fn parallel_execute_with_tips(
     is_buy: bool,
     wait_transaction_confirmed: bool,
     with_tip: bool,
-) -> Result<()> {
+) -> Result<Signature> {
     let cores = core_affinity::get_core_ids().unwrap();
-    let mut handles: Vec<JoinHandle<Result<()>>> = Vec::with_capacity(swqos_clients.len());
+    let mut handles: Vec<JoinHandle<Result<Signature>>> = Vec::with_capacity(swqos_clients.len());
     if is_buy
         && (swqos_clients.len() > priority_fee.buy_tip_fees.len()
             || priority_fee.buy_tip_fees.is_empty())
@@ -103,7 +106,11 @@ pub async fn parallel_execute_with_tips(
                 start.elapsed()
             );
 
-            Ok::<(), anyhow::Error>(())
+            transaction
+                .signatures
+                .first()
+                .ok_or_else(|| anyhow!("Transaction has no signatures"))
+                .cloned()
         });
 
         handles.push(handle);
@@ -125,13 +132,20 @@ pub async fn parallel_execute_with_tips(
     let mut errors = Vec::new();
 
     if !wait_transaction_confirmed {
-        return Ok(());
+        if let Some(result) = rx.recv().await {
+            match result {
+                Ok(Ok(sig)) => return Ok(sig),
+                Ok(Err(e)) => errors.push(format!("Task error: {}", e)),
+                Err(e) => errors.push(format!("Join error: {}", e)),
+            }
+        }
+        return Err(anyhow!("No transaction signature available"));
     }
 
     while let Some(result) = rx.recv().await {
         match result {
-            Ok(Ok(_)) => {
-                return Ok(());
+            Ok(Ok(sig)) => {
+                return Ok(sig);
             }
             Ok(Err(e)) => errors.push(format!("Task error: {}", e)),
             Err(e) => errors.push(format!("Join error: {}", e)),

src/trading/core/traits.rs

@@ -2,7 +2,7 @@ use std::sync::Arc;
 
 use crate::{swqos::SwqosClient, trading::MiddlewareManager};
 use anyhow::Result;
-use solana_sdk::instruction::Instruction;
+use solana_sdk::{instruction::Instruction, signature::Signature};
 
 use super::params::{BuyParams, SellParams};
 
@@ -15,14 +15,14 @@ pub trait TradeExecutor: Send + Sync {
         params: BuyParams,
         swqos_clients: Vec<Arc<SwqosClient>>,
         middleware_manager: Option<Arc<MiddlewareManager>>,
-    ) -> Result<()>;
+    ) -> Result<Signature>;
     /// 使用MEV服务执行卖出交易
     async fn sell_with_tip(
         &self,
         params: SellParams,
         swqos_clients: Vec<Arc<SwqosClient>>,
         middleware_manager: Option<Arc<MiddlewareManager>>,
-    ) -> Result<()>;
+    ) -> Result<Signature>;
     /// 获取协议名称
     fn protocol_name(&self) -> &'static str;
 }