add a callback for handling lost ubus connections

diff --git a/libubus.c b/libubus.c
index d90dc1f..64190f7 100644 (file)
--- a/libubus.c
+++ b/libubus.c
@@ -275,12 +275,16 @@ static void ubus_process_invoke(struct ubus_context *ctx, struct ubus_msghdr *hd
 
        ubus_parse_msg(hdr->data);
 
-       if (!attrbuf[UBUS_ATTR_METHOD] || !attrbuf[UBUS_ATTR_OBJID]) {
+       if (!attrbuf[UBUS_ATTR_OBJID])
+               return;
+
+       objid = blob_get_int32(attrbuf[UBUS_ATTR_OBJID]);
+
+       if (!attrbuf[UBUS_ATTR_METHOD]) {
                ret = UBUS_STATUS_INVALID_ARGUMENT;
                goto send;
        }
 
-       objid = blob_get_int32(attrbuf[UBUS_ATTR_OBJID]);
        obj = avl_find_element(&ctx->objects, &objid, obj, avl);
        if (!obj) {
                ret = UBUS_STATUS_NOT_FOUND;
@@ -363,6 +367,9 @@ static void ubus_handle_data(struct uloop_fd *u, unsigned int events)
 
        while (get_next_msg(ctx, false))
                ubus_process_msg(ctx, hdr);
+
+       if (u->eof)
+               ctx->connection_lost(ctx);
 }
 
 int ubus_complete_request(struct ubus_context *ctx, struct ubus_request *req)
@@ -528,6 +535,12 @@ int ubus_publish(struct ubus_context *ctx, struct ubus_object *obj)
        return 0;
 }
 
+void ubus_default_connection_lost(struct ubus_context *ctx)
+{
+       if (ctx->sock.registered)
+               uloop_end();
+}
+
 struct ubus_context *ubus_connect(const char *path)
 {
        struct ubus_context *ctx;
@@ -579,6 +592,8 @@ struct ubus_context *ubus_connect(const char *path)
        ctx->local_id = hdr.hdr.peer;
        free(buf);
 
+       ctx->connection_lost = ubus_default_connection_lost;
+
        INIT_LIST_HEAD(&ctx->requests);
        avl_init(&ctx->objects, ubus_cmp_id, false, NULL);
 

diff --git a/libubus.h b/libubus.h
index 2662878..b741e65 100644 (file)
--- a/libubus.h
+++ b/libubus.h
@@ -79,6 +79,8 @@ struct ubus_context {
        uint32_t local_id;
        uint32_t request_seq;
 
+       void (*connection_lost)(struct ubus_context *ctx);
+
        struct {
                struct ubus_msghdr hdr;
                char data[UBUS_MAX_MSGLEN - sizeof(struct ubus_msghdr)];