From 15f7221686eac053902b906c278680b485c865ce Mon Sep 17 00:00:00 2001
From: Brandon Casey <drafnel@gmail.com>
Date: Mon, 23 Sep 2013 11:49:17 -0700
Subject: contrib/git-credential-gnome-keyring.c: support really ancient
 gnome-keyring

The gnome-keyring lib (0.4) distributed with RHEL 4.X is really ancient
and does not provide most of the synchronous functions that even ancient
releases do.  Thankfully, we're only using one function that is missing.
Let's emulate gnome_keyring_item_delete_sync() by calling the asynchronous
function and then triggering the event loop processing until our
callback is called.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c b/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c
index e1bc3fa..635c96b 100644
--- a/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c
+++ b/contrib/credential/gnome-keyring/git-credential-gnome-keyring.c
@@ -86,6 +86,45 @@ static const char* gnome_keyring_result_to_message(GnomeKeyringResult result)
 	}
 }
 
+/*
+ * Support really ancient gnome-keyring, circ. RHEL 4.X.
+ * Just a guess for the Glib version.  Glib 2.8 was roughly Gnome 2.12 ?
+ * Which was released with gnome-keyring 0.4.3 ??
+ */
+#if GLIB_MAJOR_VERSION == 2 && GLIB_MINOR_VERSION < 8
+
+static void gnome_keyring_done_cb(GnomeKeyringResult result, gpointer user_data)
+{
+	gpointer *data = (gpointer*) user_data;
+	int *done = (int*) data[0];
+	GnomeKeyringResult *r = (GnomeKeyringResult*) data[1];
+
+	*r = result;
+	*done = 1;
+}
+
+static void wait_for_request_completion(int *done)
+{
+	GMainContext *mc = g_main_context_default();
+	while (!*done)
+		g_main_context_iteration(mc, TRUE);
+}
+
+static GnomeKeyringResult gnome_keyring_item_delete_sync(const char *keyring, guint32 id)
+{
+	int done = 0;
+	GnomeKeyringResult result;
+	gpointer data[] = { &done, &result };
+
+	gnome_keyring_item_delete(keyring, id, gnome_keyring_done_cb, data,
+		NULL);
+
+	wait_for_request_completion(&done);
+
+	return result;
+}
+
+#endif
 #endif
 
 /*
-- 
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