msgpack: Replace FUNC_ATTR_DEFERRED by FUNC_ATTR_ASYNC

API functions exposed via msgpack-rpc now fall into two categories:

- async functions, which are executed as soon as the request is parsed
- sync functions, which are invoked in nvim main loop when processing the
  `K_EVENT special key

Only a few functions which can be safely executed in any context are marked as
async.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/nvim/msgpack_rpc/remote_ui.c b/src/nvim/msgpack_rpc/remote_ui.c
index e582bf9550..3334b0e6af 100644
--- a/src/nvim/msgpack_rpc/remote_ui.c
+++ b/src/nvim/msgpack_rpc/remote_ui.c
@@ -28,7 +28,7 @@ void remote_ui_init(void)
   connected_uis = pmap_new(uint64_t)();
   // Add handler for "attach_ui"
   String method = cstr_as_string("ui_attach");
-  MsgpackRpcRequestHandler handler = {.fn = remote_ui_attach, .defer = false};
+  MsgpackRpcRequestHandler handler = {.fn = remote_ui_attach, .async = true};
   msgpack_rpc_add_method_handler(method, handler);
   method = cstr_as_string("ui_detach");
   handler.fn = remote_ui_detach;