[libgda] Disable GdaDataProxy defer sync. by default

[Vivien Malerba <vivien src gnome org>]

commit 8b5eac98955ee122948069cbe95b4975ddf7a9c4
Author: Vivien Malerba <malerba gnome-db org>
Date:   Sun Nov 29 14:46:35 2015 +0100

    Disable GdaDataProxy defer sync. by default

 libgda/gda-data-proxy.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/libgda/gda-data-proxy.c b/libgda/gda-data-proxy.c
index 3d1ac8a..af15af7 100644
--- a/libgda/gda-data-proxy.c
+++ b/libgda/gda-data-proxy.c
@@ -791,7 +791,7 @@ gda_data_proxy_init (GdaDataProxy *proxy)
        do_init (proxy);
 
        proxy->priv->add_null_entry = FALSE;
-       proxy->priv->defer_sync = TRUE;
+       proxy->priv->defer_sync = FALSE;
        proxy->priv->cache_changes = FALSE;
 }
 
@@ -2523,7 +2523,8 @@ static gboolean
 chunk_sync_idle (GdaDataProxy *proxy)
 {
 #define IDLE_STEP 50
-       g_rec_mutex_lock (& (proxy->priv->mutex));
+       if (! g_rec_mutex_trylock (& (proxy->priv->mutex)))
+               return TRUE; /* we have not finished yet */
 
        gboolean finished = FALSE;
        guint index, max_steps, step;