From 59b55565e34d48039051e6f2c0768d3c4952b9ff Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jo=C3=A3o=20Paulo=20Rechi=20Vita?= <jprvita@openbossa.org>
Date: Thu, 11 Jul 2013 11:43:48 -0300
Subject: [PATCH] bluetooth: Track oFono service

---
 src/modules/bluetooth/hfaudioagent-ofono.c | 61 ++++++++++++++++++++++++++++--
 1 file changed, 58 insertions(+), 3 deletions(-)

diff --git a/src/modules/bluetooth/hfaudioagent-ofono.c b/src/modules/bluetooth/hfaudioagent-ofono.c
index 3684bed..97e0fa8 100644
--- a/src/modules/bluetooth/hfaudioagent-ofono.c
+++ b/src/modules/bluetooth/hfaudioagent-ofono.c
@@ -364,6 +364,7 @@ static void hf_audio_agent_unregister(hf_audio_agent_data *hfdata) {
 
 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *data) {
     const char *sender;
+    DBusError err;
     hf_audio_agent_data *hfdata = data;
 
     pa_assert(bus);
@@ -374,6 +375,46 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *da
     if (!pa_safe_streq(hfdata->ofono_bus_id, sender) && !pa_streq("org.freedesktop.DBus", sender))
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 
+    dbus_error_init(&err);
+
+    if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged")) {
+        const char *name, *old_owner, *new_owner;
+
+        if (!dbus_message_get_args(m, &err,
+                                   DBUS_TYPE_STRING, &name,
+                                   DBUS_TYPE_STRING, &old_owner,
+                                   DBUS_TYPE_STRING, &new_owner,
+                                   DBUS_TYPE_INVALID)) {
+            pa_log_error("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
+            goto fail;
+        }
+
+        if (pa_streq(name, OFONO_SERVICE)) {
+
+            if (old_owner && *old_owner) {
+                pa_log_debug("oFono disappeared");
+
+                if (hfdata->hf_audio_cards) {
+                    pa_hashmap_free(hfdata->hf_audio_cards);
+                    hfdata->hf_audio_cards = NULL;
+                }
+
+                if(hfdata->ofono_bus_id) {
+                    pa_xfree(hfdata->ofono_bus_id);
+                    hfdata->ofono_bus_id = NULL;
+                }
+            }
+
+            if (new_owner && *new_owner) {
+                pa_log_debug("oFono appeared");
+                hf_audio_agent_register(hfdata);
+            }
+        }
+
+    }
+
+fail:
+    dbus_error_free(&err);
     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 }
 
@@ -390,7 +431,20 @@ static DBusMessage *hf_audio_agent_release(DBusConnection *c, DBusMessage *m, vo
         return r;
     }
 
-    r = dbus_message_new_error(m, "org.ofono.Error.NotImplemented", "Operation is not implemented");
+    pa_log_debug("HF audio agent has been unregistered by oFono (%s)", hfdata->ofono_bus_id);
+
+    if (hfdata->hf_audio_cards) {
+        pa_hashmap_free(hfdata->hf_audio_cards);
+        hfdata->hf_audio_cards = NULL;
+    }
+
+    if(hfdata->ofono_bus_id) {
+        pa_xfree(hfdata->ofono_bus_id);
+        hfdata->ofono_bus_id = NULL;
+    }
+
+    pa_assert_se(r = dbus_message_new_method_return(m));
+
     return r;
 }
 
@@ -459,7 +513,8 @@ hf_audio_agent_data *hf_audio_agent_init(pa_core *c) {
 
     hfdata = pa_xnew0(hf_audio_agent_data, 1);
     hfdata->core = c;
-    hfdata->hf_audio_cards = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
+    hfdata->hf_audio_cards = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func,
+                                                 NULL, hf_audio_card_free);
     hfdata->discovery = pa_shared_get(c, "bluetooth-discovery");
 
     dbus_error_init(&err);
@@ -505,7 +560,7 @@ void hf_audio_agent_done(hf_audio_agent_data *data) {
     pa_dbus_free_pending_list(&hfdata->pending);
 
     if (hfdata->hf_audio_cards) {
-        pa_hashmap_free(hfdata->hf_audio_cards, hf_audio_card_free);
+        pa_hashmap_free(hfdata->hf_audio_cards);
         hfdata->hf_audio_cards = NULL;
     }
 
-- 
2.7.4