[tracker] libtracker-miner: Fix flow control in sparql buffer

[Carlos Garnacho <carlosg src gnome org>]

commit 5153090b436fa2c0e1cc912aaba37c13f40f773e
Author: Carlos Garnacho <carlos lanedo com>
Date:   Fri Dec 2 15:56:01 2011 +0100

    libtracker-miner: Fix flow control in sparql buffer
    
    Avoid piling up flush requests of a small number of elements
    when we reach a limit, so the buffer is actually filled up for
    the next flush.

 src/libtracker-miner/tracker-sparql-buffer.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-miner/tracker-sparql-buffer.c b/src/libtracker-miner/tracker-sparql-buffer.c
index 18cbaca..441768a 100644
--- a/src/libtracker-miner/tracker-sparql-buffer.c
+++ b/src/libtracker-miner/tracker-sparql-buffer.c
@@ -507,6 +507,10 @@ tracker_sparql_buffer_flush (TrackerSparqlBuffer *buffer,
 
 	priv = buffer->priv;
 
+	if (priv->n_updates > 0) {
+		return FALSE;
+	}
+
 	if (!priv->tasks ||
 	    priv->tasks->len == 0) {
 		return FALSE;