move more protocol related stuff to ubusd_proto.c

ubusd.c

@@ -12,8 +12,6 @@
 
 #include "ubusd.h"
 
-struct avl_tree clients;
-
 static struct ubus_msg_buf *ubus_msg_unshare(struct ubus_msg_buf *ub)
 {
 	ub = realloc(ub, sizeof(*ub) + ub->len);
@@ -144,17 +142,10 @@ static void ubus_msg_dequeue(struct ubus_client *cl)
 
 static void handle_client_disconnect(struct ubus_client *cl)
 {
-	struct ubus_object *obj;
-
-	while (!list_empty(&cl->objects)) {
-		obj = list_first_entry(&cl->objects, struct ubus_object, list);
-		ubusd_free_object(obj);
-	}
-
 	while (ubus_msg_head(cl))
 		ubus_msg_dequeue(cl);
 
-	ubus_free_id(&clients, &cl->id);
+	ubusd_proto_free_client(cl);
 	uloop_fd_delete(&cl->sock);
 	close(cl->sock.fd);
 	free(cl);
@@ -237,7 +228,7 @@ retry:
 		/* accept message */
 		cl->pending_msg_offset = 0;
 		cl->pending_msg = NULL;
-		ubusd_receive_message(cl, ub);
+		ubusd_proto_receive_message(cl, ub);
 		goto retry;
 	}
 
@@ -265,25 +256,12 @@ static bool get_next_connection(int fd)
 		}
 	}
 
-	cl = calloc(1, sizeof(*cl));
+	cl = ubusd_proto_new_client(client_fd, client_cb);
-	cl->sock.fd = client_fd;
+	if (cl)
+		uloop_fd_add(&cl->sock, ULOOP_READ | ULOOP_EDGE_TRIGGER);
+	else
+		close(client_fd);
 
-	INIT_LIST_HEAD(&cl->objects);
-	if (!ubus_alloc_id(&clients, &cl->id, 0))
-		goto error;
-
-	cl->sock.cb = client_cb;
-	uloop_fd_add(&cl->sock, ULOOP_READ | ULOOP_EDGE_TRIGGER);
-	if (!ubusd_send_hello(cl))
-		goto error_free;
-
-	return true;
-
-error_free:
-	ubus_free_id(&clients, &cl->id);
-error:
-	close(cl->sock.fd);
-	free(cl);
 	return true;
 }
 
@@ -317,8 +295,6 @@ int main(int argc, char **argv)
 
 	signal(SIGPIPE, SIG_IGN);
 
-	ubus_init_id_tree(&clients);
-
 	uloop_init();
 
 	while ((ch = getopt(argc, argv, "s:")) != -1) {

ubusd.h

@@ -13,7 +13,6 @@
 #define UBUS_OBJ_HASH_BITS	4
 
 extern struct blob_buf b;
-extern struct avl_tree clients;
 
 struct ubus_msg_buf {
 	uint32_t refcount; /* ~0: uses external data buffer */
@@ -48,8 +47,9 @@ struct ubus_msg_buf *ubus_msg_new(void *data, int len, bool shared);
 void ubus_msg_send(struct ubus_client *cl, struct ubus_msg_buf *ub, bool free);
 void ubus_msg_free(struct ubus_msg_buf *ub);
 
-void ubusd_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub);
+struct ubus_client *ubusd_proto_new_client(int fd, uloop_fd_handler cb);
-bool ubusd_send_hello(struct ubus_client *cl);
+void ubusd_proto_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub);
+void ubusd_proto_free_client(struct ubus_client *cl);
 
 void ubusd_event_init(void);
 void ubusd_event_cleanup_object(struct ubus_object *obj);

ubusd_proto.c

@@ -4,6 +4,7 @@
 struct blob_buf b;
 static struct ubus_msg_buf *retmsg;
 static int *retmsg_data;
+static struct avl_tree clients;
 
 static struct blob_attr *attrbuf[UBUS_ATTR_MAX];
 
@@ -48,7 +49,7 @@ static struct ubus_msg_buf *ubus_reply_from_blob(struct ubus_msg_buf *ub, bool s
 	return new;
 }
 
-bool ubusd_send_hello(struct ubus_client *cl)
+static bool ubusd_send_hello(struct ubus_client *cl)
 {
 	struct ubus_msg_buf *ub;
 
@@ -281,7 +282,7 @@ static const ubus_cmd_cb handlers[__UBUS_MSG_LAST] = {
 	[UBUS_MSG_DATA] = ubusd_handle_response,
 };
 
-void ubusd_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub)
+void ubusd_proto_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub)
 {
 	ubus_cmd_cb cb = NULL;
 	int ret;
@@ -306,8 +307,49 @@ void ubusd_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub)
 	ubus_msg_send(cl, retmsg, false);
 }
 
+struct ubus_client *ubusd_proto_new_client(int fd, uloop_fd_handler cb)
+{
+	struct ubus_client *cl;
+
+	cl = calloc(1, sizeof(*cl));
+	if (!cl)
+		return NULL;
+
+	INIT_LIST_HEAD(&cl->objects);
+	cl->sock.fd = fd;
+	cl->sock.cb = cb;
+
+	if (!ubus_alloc_id(&clients, &cl->id, 0))
+		goto free;
+
+	if (!ubusd_send_hello(cl))
+		goto delete;
+
+	return cl;
+
+delete:
+	ubus_free_id(&clients, &cl->id);
+free:
+	free(cl);
+	return NULL;
+}
+
+void ubusd_proto_free_client(struct ubus_client *cl)
+{
+	struct ubus_object *obj;
+
+	while (!list_empty(&cl->objects)) {
+		obj = list_first_entry(&cl->objects, struct ubus_object, list);
+		ubusd_free_object(obj);
+	}
+
+	ubus_free_id(&clients, &cl->id);
+}
+
 static void __init ubusd_proto_init(void)
 {
+	ubus_init_id_tree(&clients);
+
 	blob_buf_init(&b, 0);
 	blob_put_int32(&b, UBUS_ATTR_STATUS, 0);