Merge branch 'master' of github.com:snower/TorMySQL

Author: snower

tormysql/pool.py

@@ -138,7 +138,7 @@ def release_connection(self, connection):
                 connection.used_time = time.time()
                 if connection.open:
                     wait_future = self._wait_connections.popleft()
-                    wait_future.set_result(connection)
+                    IOLoop.current().add_callback(wait_future.set_result, connection)
         else:
             try:
                 del self._used_connections[id(connection)]
@@ -217,4 +217,4 @@ def check_idle_connections(self):
         if not self._closed and self._connections or self._used_connections:
             IOLoop.current().add_timeout(next_check_time, self.check_idle_connections)
         else:
-            self._check_idle_callback = False
+            self._check_idle_callback = False