init

src/error.rs

@@ -0,0 +1,24 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum DHTError {
+    #[error("网络错误: {0}")]
+    Network(#[from] std::io::Error),
+    
+    #[error("Bencode 解析错误: {0}")]
+    Bencode(String),
+    
+    #[error("协议错误: {0}")]
+    Protocol(String),
+    
+    #[error("超时")]
+    Timeout,
+    
+    #[error("未找到 Peer")]
+    NoPeersAvailable,
+    
+    #[error("元数据验证失败")]
+    InvalidMetadata,
+}
+
+pub type Result<T> = std::result::Result<T, DHTError>;