ussd: Add __ofono_ussd_is_busy

Send SS requires Call Forwarding / Call Settings / Call Barring to check
whether USSD is currently busy.  If it is, then the SIM should be
notified appropriately.

We introduce a function __ofono_ussd_is_busy to help with this.

2 files changed, 12 insertions, 0 deletions

diff --git a/src/ofono.h b/src/ofono.h
index d95f2f21..9b2e53fe 100644
--- a/src/ofono.h
+++ b/src/ofono.h
@@ -254,6 +254,7 @@ gboolean __ofono_ussd_passwd_register(struct ofono_ussd *ussd, const char *sc,
 					ofono_ussd_passwd_cb_t cb, void *data,
 					ofono_destroy_func destroy);
 void __ofono_ussd_passwd_unregister(struct ofono_ussd *ussd, const char *sc);
+gboolean __ofono_ussd_is_busy(struct ofono_ussd *ussd);
 
 #include <ofono/netreg.h>
 
diff --git a/src/ussd.c b/src/ussd.c
index 825d5606..fbb07d20 100644
--- a/src/ussd.c
+++ b/src/ussd.c
@@ -65,6 +65,17 @@ struct ssc_entry {
 	ofono_destroy_func destroy;
 };
 
+gboolean __ofono_ussd_is_busy(struct ofono_ussd *ussd)
+{
+	if (!ussd)
+		return FALSE;
+
+	if (ussd->pending || ussd->state != USSD_STATE_IDLE)
+		return TRUE;
+
+	return FALSE;
+}
+
 static struct ssc_entry *ssc_entry_create(const char *sc, void *cb, void *data,
 						ofono_destroy_func destroy)
 {