Delay server exit until server is unused about websockify

[AricStewart]

Here is the functional patch, without the command line switch:

diff --git a/websocket.py b/websocket.py
index 11f718c..1bb83c0 100644
--- a/websocket.py
+++ b/websocket.py
@@ -837,9 +837,14 @@ Sec-WebSocket-Accept: %s\r
                     self.client = None
                     startsock = None
                     pid = err = 0
+                    child_count = 0
+
+                    if multiprocessing and self.timeout:
+                        child_count = len(multiprocessing.active_children())
 
                     time_elapsed = time.time() - self.launch_time
-                    if self.timeout and time_elapsed > self.timeout:
+                    if self.timeout and time_elapsed > self.timeout
+                       and child_count == 0:
                         self.msg('listener exit due to --timeout %s'
                                 % self.timeout)
                         break

[kanaka]

Yes, that's a reasonable change. I think it should be a separate option from the normal --timeout. Something like --idle-timeout. --timeout would be how long to listen for new connections, and --idle-timeout would be how long to stick around when there are no active connections.

Also, it would be easiest if you fork, make the changes and issue a pull request. Thanks.

[AricStewart]

Thanks still new to GitHub and how things work here. I will try to get a pull request issued.

[AricStewart]

Thanks for the help I have issued the pull request and hope I have done it properly. Thank you very much for your patience.

[kanaka]

@AricStewart, sorry for the delay. Day job and all that. The change looks good. Thanks for the contribution.