[evolution-data-server] CamelIMAPXJob: Add imapx_job_ref().

[Matthew Barnes <mbarnes src gnome org>]

commit 51f24e1780f33d300af3e6110bbd9ca609e24be5
Author: Matthew Barnes <mbarnes redhat com>
Date:   Thu Dec 1 20:43:18 2011 -0600

    CamelIMAPXJob: Add imapx_job_ref().

 camel/providers/imapx/camel-imapx-server.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/camel/providers/imapx/camel-imapx-server.c b/camel/providers/imapx/camel-imapx-server.c
index fb942a4..34519b4 100644
--- a/camel/providers/imapx/camel-imapx-server.c
+++ b/camel/providers/imapx/camel-imapx-server.c
@@ -2198,6 +2198,17 @@ imapx_job_new (GCancellable *cancellable)
 	return job;
 }
 
+static CamelIMAPXJob *
+imapx_job_ref (CamelIMAPXJob *job)
+{
+	g_return_val_if_fail (job != NULL, NULL);
+	g_return_val_if_fail (job->ref_count > 0, NULL);
+
+	g_atomic_int_inc (&job->ref_count);
+
+	return job;
+}
+
 static void
 imapx_job_free (CamelIMAPXJob *job)
 {