Internal code abstraction into blkmk_set_times

Ported from C libblkmaker commit 0299bfc068c17204873d5f96da85563ddeebd1b5

blkmaker.py

@@ -112,6 +112,15 @@ def _extranonce(tmpl, workid):
 	coinbase = _append_cb(tmpl, extradata)
 	return coinbase
 
+def _set_times(tmpl, usetime = None, out_expire = None):
+	time_passed = int(usetime - tmpl._time_rcvd)
+	timehdr = tmpl.curtime + time_passed
+	if (timehdr > tmpl.maxtime):
+		timehdr = tmpl.maxtime
+	return _pack('<I', timehdr)
+	if not out_expire is None:
+		out_expire[0] = tmpl.expires - time_passed - 1
+
 def get_data(tmpl, usetime = None, out_expire = None):
 	if usetime is None: usetime = _time()
 	if (not (time_left(tmpl, usetime) and work_left(tmpl))):
@@ -130,15 +139,8 @@ def get_data(tmpl, usetime = None, out_expire = None):
 		return (None, None)
 	cbuf += merkleroot
 
-	time_passed = int(usetime - tmpl._time_rcvd)
-	timehdr = tmpl.curtime + time_passed
-	if (timehdr > tmpl.maxtime):
-		timehdr = tmpl.maxtime
-
-	cbuf += _pack('<I', timehdr)
+	cbuf += _set_times(tmpl, usetime, out_expire)
 	cbuf += tmpl.diffbits
-	if not out_expire is None:
-		out_expire[0] = tmpl.expires - time_passed - 1
 
 	return (cbuf, dataid)