[PATCH 5/7] mesh: Added default "auto" to command line parsing

[Brian Gix <brian.gix@intel.com>]

While it will still be possible to request the "unit" and "hci"
based transports, "auto" has been added as a default to specify
"best choice" as determined by MGMT based enumeration of available
controllers.
---
 mesh/main.c | 39 +++++++++++++++++++++++++++++++++++----
 mesh/mesh.c |  6 +++++-
 mesh/mesh.h |  2 +-
 3 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/mesh/main.c b/mesh/main.c
index dd99c3085..619b17d88 100644
--- a/mesh/main.c
+++ b/mesh/main.c
@@ -123,6 +123,12 @@ static void disconnect_callback(void *user_data)
 	l_main_quit();
 }
 
+static void kill_to(struct l_timeout *timeout, void *user_data)
+{
+	l_timeout_remove(timeout);
+	l_main_quit();
+}
+
 static void signal_handler(uint32_t signo, void *user_data)
 {
 	static bool terminated;
@@ -131,13 +137,38 @@ static void signal_handler(uint32_t signo, void *user_data)
 		return;
 
 	l_info("Terminating");
-	l_main_quit();
+	mesh_cleanup(true);
+	l_timeout_create(1, kill_to, NULL, NULL);
 	terminated = true;
 }
 
 static bool parse_io(const char *optarg, enum mesh_io_type *type, void **opts)
 {
-	if (strstr(optarg, "generic") == optarg) {
+	if (strstr(optarg, "auto") == optarg) {
+		int *index = l_new(int, 1);
+
+		*type = MESH_IO_TYPE_AUTO;
+		*opts = index;
+
+		optarg += strlen("auto");
+		if (!*optarg) {
+			*index = MGMT_INDEX_NONE;
+			return true;
+		}
+
+		if (*optarg != ':')
+			return false;
+
+		optarg++;
+
+		if (sscanf(optarg, "hci%d", index) == 1)
+			return true;
+
+		if (sscanf(optarg, "%d", index) == 1)
+			return true;
+
+		return false;
+	} else if (strstr(optarg, "generic") == optarg) {
 		int *index = l_new(int, 1);
 
 		*type = MESH_IO_TYPE_GENERIC;
@@ -251,7 +282,7 @@ int main(int argc, char *argv[])
 	}
 
 	if (!io)
-		io = l_strdup_printf("generic");
+		io = l_strdup_printf("auto");
 
 	if (!parse_io(io, &io_type, &io_opts)) {
 		l_error("Invalid io: %s", io);
@@ -295,7 +326,7 @@ done:
 	l_free(io);
 	l_free(io_opts);
 
-	mesh_cleanup();
+	mesh_cleanup(false);
 	l_dbus_destroy(dbus);
 	l_main_exit();
 
diff --git a/mesh/mesh.c b/mesh/mesh.c
index 62d650328..91cf25175 100644
--- a/mesh/mesh.c
+++ b/mesh/mesh.c
@@ -324,11 +324,15 @@ static void free_pending_join_call(bool failed)
 	join_pending = NULL;
 }
 
-void mesh_cleanup(void)
+void mesh_cleanup(bool signaled)
 {
 	struct l_dbus_message *reply;
 
 	mesh_io_destroy(mesh.io);
+	mesh.io = NULL;
+
+	if (signaled)
+		return;
 
 	if (join_pending) {
 
diff --git a/mesh/mesh.h b/mesh/mesh.h
index 0f77ebc58..c30a8d1f0 100644
--- a/mesh/mesh.h
+++ b/mesh/mesh.h
@@ -28,7 +28,7 @@ typedef void (*prov_rx_cb_t)(void *user_data, const uint8_t *data,
 bool mesh_init(const char *config_dir, const char *mesh_conf_fname,
 					enum mesh_io_type type, void *opts,
 					mesh_ready_func_t cb, void *user_data);
-void mesh_cleanup(void);
+void mesh_cleanup(bool signaled);
 bool mesh_dbus_init(struct l_dbus *dbus);
 
 const char *mesh_status_str(uint8_t err);
-- 
2.35.1