Ensure the fd will be release completely

Signed-off-by: jokemanfire <hu.dingyang@zte.com.cn>

src/sync/client.rs

@@ -62,7 +62,7 @@ impl Client {
 
     fn new_client(pipe_client: ClientConnection) -> Result<Client> {
         let client = Arc::new(pipe_client);
-
+        let weak_client = Arc::downgrade(&client);
         let (sender_tx, rx): (Sender, Receiver) = mpsc::channel();
         let recver_map_orig = Arc::new(Mutex::new(HashMap::new()));
 
@@ -98,20 +98,26 @@ impl Client {
             trace!("Sender quit");
         });
 
-        //Recver
+        //Reciver
         let receiver_connection = connection;
-        let receiver_client = client.clone();
+        //Clone as weak Arc , it will not add the count of client
+        let receiver_client = weak_client.clone();
         thread::spawn(move || {
             loop {
-                match receiver_client.ready() {
-                    Ok(None) => {
-                        continue;
-                    }
-                    Ok(_) => {}
-                    Err(e) => {
-                        error!("pipeConnection ready error {:?}", e);
-                        break;
+
+                if let Some(receiver_client) = receiver_client.upgrade(){
+                    match receiver_client.ready() {
+                        Ok(None) => {
+                            continue;
+                        }
+                        Ok(_) => {}
+                        Err(e) => {
+                            error!("pipeConnection ready error {:?}", e);
+                            break;
+                        }
                     }
+                }else{
+                    break;
                 }
 
                 match read_message(&receiver_connection) {
@@ -140,10 +146,6 @@ impl Client {
                 };
             }
 
-            let _ = receiver_client
-                .close_receiver()
-                .map_err(|e| warn!("failed to close with error: {:?}", e));
-
             trace!("Receiver quit");
         });
 
@@ -191,7 +193,9 @@ impl Client {
 
 impl Drop for ClientConnection {
     fn drop(&mut self) {
+        //close all fd , make sure all fd have been release
         self.close().unwrap();
+        self.close_receiver().unwrap();
         trace!("Client is dropped");
     }
 }

src/sync/sys/unix/net.rs

@@ -28,6 +28,7 @@ use crate::common::{self, client_connect, SOCK_CLOEXEC};
 use crate::common::set_fd_close_exec;
 use nix::sys::socket::{self};
 
+const POLL_MAX_TIME: i32 = 10;
 pub struct PipeListener {
     fd: RawFd,
     monitor_fd: (RawFd, RawFd),
@@ -104,7 +105,7 @@ impl PipeListener {
             libc::poll(
                 pollers as *mut _ as *mut libc::pollfd,
                 pollers.len() as _,
-                -1,
+                POLL_MAX_TIME,
             )
         };
 
@@ -278,7 +279,7 @@ impl ClientConnection {
             libc::poll(
                 pollers as *mut _ as *mut libc::pollfd,
                 pollers.len() as _,
-                -1,
+                POLL_MAX_TIME,
             )
         };