From 9d7a869cb95e64f6a1c09a3de8e65cb7833d4193 Mon Sep 17 00:00:00 2001
From: Jonathan Warren <me@jonwarren.org>
Date: Wed, 19 Jun 2013 00:51:31 -0400
Subject: [PATCH] Prevent proofOfWork pool threads from returning any data if
 shut down before finished with a POW

---
 src/proofofwork.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/proofofwork.py b/src/proofofwork.py
index b8369087..f65c127f 100644
--- a/src/proofofwork.py
+++ b/src/proofofwork.py
@@ -58,7 +58,8 @@ def _doFastPoW(target, initialHash):
     while True:
         if shared.shutdown:
             pool.terminate()
-            pool.join() #Don't return anything (doing so will cause exceptions because we'll return an unusable response). Sit here and wait for this thread to close.
+            while True:
+                time.sleep(10) # Don't let this thread return here; it will return nothing and cause an exception in bitmessagemain.py
             return
         for i in range(pool_size):
             if result[i].ready():