obexd: remove obex_mime_type_driver::set_io_watch

All the drivers use the default function, where the register function
modifies what should be a constant vtable.

Instead let's remove the indirection, export and use the function as
applicable.

Since we have set and reset, export both functions and cleanup the
users.

obexd/src/mimetype.c

@@ -73,7 +73,7 @@ static struct io_watch *find_io_watch(void *object)
 	return NULL;
 }
 
-static void reset_io_watch(void *object)
+void obex_object_reset_io_watch(void *object)
 {
 	struct io_watch *watch;
 
@@ -85,16 +85,11 @@ static void reset_io_watch(void *object)
 	g_free(watch);
 }
 
-static int set_io_watch(void *object, obex_object_io_func func,
+int obex_object_set_io_watch(void *object, obex_object_io_func func,
 				void *user_data)
 {
 	struct io_watch *watch;
 
-	if (func == NULL) {
-		reset_io_watch(object);
-		return 0;
-	}
-
 	watch = find_io_watch(object);
 	if (watch)
 		return -EPERM;
@@ -181,9 +176,6 @@ int obex_mime_type_driver_register(struct obex_mime_type_driver *driver)
 		return -EPERM;
 	}
 
-	if (driver->set_io_watch == NULL)
-		driver->set_io_watch = set_io_watch;
-
 	DBG("driver %p mimetype %s registered", driver, driver->mimetype);
 
 	drivers = g_slist_append(drivers, driver);

obexd/src/mimetype.h

@@ -28,8 +28,6 @@ struct obex_mime_type_driver {
 	int (*copy) (const char *name, const char *destname);
 	int (*move) (const char *name, const char *destname);
 	int (*remove) (const char *name);
-	int (*set_io_watch) (void *object, obex_object_io_func func,
-				void *user_data);
 };
 
 int obex_mime_type_driver_register(struct obex_mime_type_driver *driver);
@@ -40,3 +38,7 @@ struct obex_mime_type_driver *obex_mime_type_driver_find(const uint8_t *target,
 				unsigned int who_size);
 
 void obex_object_set_io_flags(void *object, int flags, int err);
+
+void obex_object_reset_io_watch(void *object);
+int obex_object_set_io_watch(void *object, obex_object_io_func func,
+				void *user_data);

obexd/src/obex.c

@@ -119,7 +119,7 @@ static void os_reset_session(struct obex_session *os)
 	os_session_mark_aborted(os);
 
 	if (os->object) {
-		os->driver->set_io_watch(os->object, NULL, NULL);
+		obex_object_reset_io_watch(os->object);
 		os->driver->close(os->object);
 		if (os->aborted && os->cmd == G_OBEX_OP_PUT && os->path &&
 				os->driver->remove)
@@ -357,7 +357,7 @@ static gssize driver_read(struct obex_session *os, void *buf, gsize size)
 		if (len == -ENOSTR)
 			return 0;
 		if (len == -EAGAIN)
-			os->driver->set_io_watch(os->object, handle_async_io,
+			obex_object_set_io_watch(os->object, handle_async_io,
 									os);
 	}
 
@@ -395,7 +395,7 @@ static void transfer_complete(GObex *obex, GError *err, gpointer user_data)
 	if (os->object && os->driver && os->driver->flush) {
 		if (os->driver->flush(os->object) == -EAGAIN) {
 			g_obex_suspend(os->obex);
-			os->driver->set_io_watch(os->object, handle_async_io,
+			obex_object_set_io_watch(os->object, handle_async_io,
 									os);
 			return;
 		}
@@ -525,7 +525,7 @@ static gboolean recv_data(const void *buf, gsize size, gpointer user_data)
 
 	if (ret == -EAGAIN) {
 		g_obex_suspend(os->obex);
-		os->driver->set_io_watch(os->object, handle_async_io, os);
+		obex_object_set_io_watch(os->object, handle_async_io, os);
 		return TRUE;
 	}
 
@@ -699,7 +699,7 @@ int obex_get_stream_start(struct obex_session *os, const char *filename)
 		return err;
 
 	g_obex_suspend(os->obex);
-	os->driver->set_io_watch(os->object, handle_async_io, os);
+	obex_object_set_io_watch(os->object, handle_async_io, os);
 	return 0;
 }
 
@@ -772,7 +772,7 @@ static gboolean check_put(GObex *obex, GObexPacket *req, void *user_data)
 		break;
 	case -EAGAIN:
 		g_obex_suspend(os->obex);
-		os->driver->set_io_watch(os->object, handle_async_io, os);
+		obex_object_set_io_watch(os->object, handle_async_io, os);
 		return TRUE;
 	default:
 		os_set_response(os, ret);