From 433d55d35191a708632173de90f4ca6fbfd7ba4f Mon Sep 17 00:00:00 2001
From: Jonathan Warren <me@jonwarren.org>
Date: Mon, 3 Jun 2013 01:04:22 -0400
Subject: [PATCH] Low priority POW threads

---
 src/bitmessagemain.py |  2 +-
 src/proofofwork.py    | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/bitmessagemain.py b/src/bitmessagemain.py
index c7ce958e..100d6d30 100755
--- a/src/bitmessagemain.py
+++ b/src/bitmessagemain.py
@@ -3822,7 +3822,7 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
             queryreturn = shared.sqlReturnQueue.get()
             shared.sqlLock.release()
             if queryreturn == []:
-                return 'notFound'
+                return 'notfound'
             for row in queryreturn:
                 status, = row
                 return status
diff --git a/src/proofofwork.py b/src/proofofwork.py
index 20abf169..5aef6dc4 100644
--- a/src/proofofwork.py
+++ b/src/proofofwork.py
@@ -3,8 +3,21 @@ import time
 from multiprocessing import Pool, cpu_count
 import hashlib
 from struct import unpack, pack
+import sys
+import os
+
+def _set_idle():
+    try:
+        sys.getwindowsversion()
+        import win32api,win32process,win32con
+        pid = win32api.GetCurrentProcessId()
+        handle = win32api.OpenProcess(win32con.PROCESS_ALL_ACCESS, True, pid)
+        win32process.SetPriorityClass(handle, win32process.IDLE_PRIORITY_CLASS)
+    except:
+        os.nice(20)
 
 def _pool_worker(nonce, initialHash, target, pool_size):
+    _set_idle()
     trialValue = 99999999999999999999
     while trialValue > target:
         nonce += pool_size