From be78f6578befe107deabdf040d4297f994a52054 Mon Sep 17 00:00:00 2001
From: Astro <astro@spaceboyz.net>
Date: Tue, 29 Jan 2019 01:34:44 +0100
Subject: [PATCH] Revert "client: add more state to make close() send
 `</stream:stream>`"

This reverts commit 6379f91e02fc0813e8478a1115bb9050d2a23cb6.
---
 src/client/mod.rs | 48 +++++++++--------------------------------------
 1 file changed, 9 insertions(+), 39 deletions(-)

diff --git a/src/client/mod.rs b/src/client/mod.rs
index 025b439..9033b83 100644
--- a/src/client/mod.rs
+++ b/src/client/mod.rs
@@ -35,8 +35,6 @@ enum ClientState {
     Disconnected,
     Connecting(Box<Future<Item = XMPPStream, Error = Error>>),
     Connected(XMPPStream),
-    ClosingSendEnd(futures::sink::Send<XMPPStream>),
-    ClosingClose(XMPPStream),
 }
 
 impl Client {
@@ -190,14 +188,6 @@ impl Stream for Client {
                     Err(e) => Err(e)?,
                 }
             }
-            ClientState::ClosingSendEnd(_) => {
-                self.state = state;
-                Ok(Async::NotReady)
-            }
-            ClientState::ClosingClose(_) => {
-                self.state = state;
-                Ok(Async::NotReady)
-            }
         }
     }
 }
@@ -229,40 +219,20 @@ impl Sink for Client {
     fn poll_complete(&mut self) -> Poll<(), Self::SinkError> {
         match self.state {
             ClientState::Connected(ref mut stream) => stream.poll_complete().map_err(|e| e.into()),
-            ClientState::ClosingSendEnd(ref mut send) => {
-                match send.poll()? {
-                    Async::NotReady =>
-                        Ok(Async::NotReady),
-                    Async::Ready(stream) => {
-                        self.state = ClientState::ClosingClose(stream);
-                        self.poll_complete()
-                    }
-                }
-            }
-            ClientState::ClosingClose(ref mut stream) => {
-                match stream.close()? {
-                    Async::NotReady =>
-                        Ok(Async::NotReady),
-                    Async::Ready(()) => {
-                        self.state = ClientState::Disconnected;
-                        Ok(Async::Ready(()))
-                    }
-                }
-            }
             _ => Ok(Async::Ready(())),
         }
     }
 
-    /// Send `</stream:stream> and later close the inner TCP stream.
+    /// This closes the inner TCP stream.
+    ///
+    /// To synchronize your shutdown with the server side, you should
+    /// first send `Packet::StreamEnd` and wait for the end of the
+    /// incoming stream before closing the connection.
     fn close(&mut self) -> Poll<(), Self::SinkError> {
-        let state = replace(&mut self.state, ClientState::Disconnected);
-
-        match state {
-            ClientState::Connected(stream) => {
-                let send = stream.send(Packet::StreamEnd);
-                self.state = ClientState::ClosingSendEnd(send);
-                self.poll_complete()
-            }
+        match self.state {
+            ClientState::Connected(ref mut stream) =>
+                stream.close()
+                .map_err(|e| e.into()),
             _ =>
                 Ok(Async::Ready(())),
         }