From 1607f89bb16a4ca55b4923fce02a029953791434 Mon Sep 17 00:00:00 2001
From: Daniele Varrazzo <daniele.varrazzo@gmail.com>
Date: Wed, 7 Apr 2010 02:15:39 +0100
Subject: [PATCH] Avoid the locks dance when reading the connection socket
 number.

It is a fast and non critical operation, so the lock is not required.
Furthermore, called from the wait callback creates a deadlock.
---
 psycopg/connection_type.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/psycopg/connection_type.c b/psycopg/connection_type.c
index 54633051..4004b420 100644
--- a/psycopg/connection_type.c
+++ b/psycopg/connection_type.c
@@ -547,11 +547,7 @@ psyco_conn_fileno(connectionObject *self)
 
     EXC_IF_CONN_CLOSED(self);
 
-    Py_BEGIN_ALLOW_THREADS;
-    pthread_mutex_lock(&(self->lock));
     socket = (long int)PQsocket(self->pgconn);
-    pthread_mutex_unlock(&(self->lock));
-    Py_END_ALLOW_THREADS;
 
     return PyInt_FromLong(socket);
 }