From cc26d4e0409281fc910efb2e3f5b7a8b5d04fe85 Mon Sep 17 00:00:00 2001
From: Dmitriy Ryajov <dryajov@gmail.com>
Date: Tue, 3 Sep 2019 19:41:28 -0600
Subject: [PATCH] prevent already closed errors

---
 libp2p/stream/chronosstream.nim | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/libp2p/stream/chronosstream.nim b/libp2p/stream/chronosstream.nim
index 968e021..0f9a125 100644
--- a/libp2p/stream/chronosstream.nim
+++ b/libp2p/stream/chronosstream.nim
@@ -55,10 +55,14 @@ method write*(s: ChronosStream, msg: seq[byte], msglen = -1) {.async, gcsafe.} =
   await s.writer.write(msg, msglen)
 
 method close*(s: ChronosStream) {.async, gcsafe.} =
-  await s.reader.closeWait()
+  if not s.closed:
+    if not s.reader.closed:
+      await s.reader.closeWait()
 
-  await s.writer.finish()
-  await s.writer.closeWait()
+    await s.writer.finish()
 
-  await s.client.closeWait()
-  s.closed = true
\ No newline at end of file
+    if not s.writer.closed:
+      await s.writer.closeWait()
+
+    await s.client.closeWait()
+    s.closed = true
\ No newline at end of file