Fixed bug when timeout is not None when creating a pool (#166).

Author: anthony-tuininga

Diff for: doc/src/release_notes.rst

@@ -15,6 +15,8 @@ Thin Mode Changes
 
 #)  Fixed bug when SQL is executed after first being parsed with Oracle
     Database 23c.
+#)  Fixed bug when timeout is not ``None`` when creating a pool
+    (`issue 166 <https://github.com/oracle/python-oracledb/issues/166>`__).
 #)  Replaced regular expressions for parsing SQL with regular expressions that
     perform better
     (`issue 172 <https://github.com/oracle/python-oracledb/issues/172>`__).

Diff for: src/oracledb/impl/thin/pool.pyx

@@ -328,9 +328,10 @@ cdef class ThinPoolImpl(BasePoolImpl):
         current_time = time.monotonic()
         while self.get_open_count() > self.min and conn_impls_to_check:
             conn_impl = conn_impls_to_check[0]
-            if current_time - conn_impl._time_in_pool > self._timeout:
-                conn_impls_to_check.pop(0)
-                self._drop_conn_impl(conn_impl)
+            if current_time - conn_impl._time_in_pool < self._timeout:
+                break
+            conn_impls_to_check.pop(0)
+            self._drop_conn_impl(conn_impl)
 
     def acquire(self, ConnectParamsImpl params):
         """