From 6a145dea09e8781711adcfe1c718ee5fd6c4f3fd Mon Sep 17 00:00:00 2001
From: Robey Pointer <robey@master-shake.local>
Date: Wed, 18 Jan 2006 22:55:03 -0800
Subject: [PATCH] [project @
 robey@master-shake.local-20060119065503-341b1f0c0d161e22] add
 Transport.atfork to handle the case where a forked child needs to cleanly
 dispose of a Transport where the socket is shared with its parent

---
 paramiko/transport.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/paramiko/transport.py b/paramiko/transport.py
index abc1ea9..db3ada1 100644
--- a/paramiko/transport.py
+++ b/paramiko/transport.py
@@ -325,6 +325,19 @@ class Transport (threading.Thread):
                 out += ' (connecting)'
         out += '>'
         return out
+    
+    def atfork(self):
+        """
+        Terminate this Transport without closing the session.  On posix
+        systems, if a Transport is open during process forking, both parent
+        and child will share the underlying socket, but only one process can
+        use the connection (without corrupting the session).  Use this method
+        to clean up a Transport object without disrupting the other process.
+        
+        @since: 1.6
+        """
+        self.sock.close()
+        self.close()
 
     def get_security_options(self):
         """