Handle the collection errors both reading and writing

[Boyu Yang]

Handle the collection errors when reading data:

tentacle/tentacle/src/substream.rs

Lines 410 to 423 in 7c07bb7

 Poll::Ready(Some(Err(err))) => { 
     debug!("sub stream codec error: {:?}", err); 
     match err.kind() { 
         ErrorKind::BrokenPipe 
         | ErrorKind::ConnectionAborted 
         | ErrorKind::ConnectionReset 
         | ErrorKind::NotConnected 
         | ErrorKind::UnexpectedEof => self.dead = true, 
         _ => { 
             self.error_close(cx, err); 
         } 
     } 
     Poll::Ready(None) 
 } 

But not when writing:

tentacle/tentacle/src/substream.rs

Lines 262 to 279 in 7c07bb7

 if let Err(err) = self.send_data(cx) { 
     // Whether it is a read send error or a flush error, 
     // the most essential problem is that there is a problem with the external network. 
     // Close the protocol stream directly. 
     debug!( 
         "protocol [{}] close because of extern network", 
         self.proto_id 
     ); 
     self.output_event( 
         cx, 
         ProtocolEvent::Error { 
             id: self.id, 
             proto_id: self.proto_id, 
             error: err, 
         }, 
     ); 
     self.dead = true; 
 }