| // Copyright 2020 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef LIB_DRIVER2_PROMISE_H_ |
| #define LIB_DRIVER2_PROMISE_H_ |
| |
| #include <fidl/fuchsia.driver.framework/cpp/wire.h> |
| #include <lib/driver2/namespace.h> |
| #include <lib/fpromise/promise.h> |
| |
| namespace driver { |
| |
| namespace internal { |
| |
| // Connects to the given `path` in `ns`, and returns a fpromise::result containing a |
| // fidl::WireSharedClient on success. |
| template <typename T> |
| fpromise::result<fidl::WireSharedClient<T>, zx_status_t> ConnectWithResult( |
| const driver::Namespace& ns, async_dispatcher_t* dispatcher, std::string_view path, |
| fuchsia_io::wire::OpenFlags flags) { |
| auto result = ns.Connect<T>(path, flags); |
| if (result.is_error()) { |
| return fpromise::error(result.status_value()); |
| } |
| fidl::WireSharedClient<T> client(std::move(*result), dispatcher); |
| return fpromise::ok(std::move(client)); |
| } |
| |
| } // namespace internal |
| |
| // Connects to the given `path` in `ns`, and returns a fpromise::promise containing a |
| // fidl::WireSharedClient on success. |
| template <typename T> |
| fpromise::promise<fidl::WireSharedClient<T>, zx_status_t> Connect( |
| const driver::Namespace& ns, async_dispatcher_t* dispatcher, |
| std::string_view path = fidl::DiscoverableProtocolDefaultPath<T>, |
| fuchsia_io::wire::OpenFlags flags = fuchsia_io::wire::OpenFlags::kRightReadable) { |
| return fpromise::make_result_promise(internal::ConnectWithResult<T>(ns, dispatcher, path, flags)); |
| } |
| |
| // Adds a child to `client`, using `args`. `controller` must be provided, but |
| // `node` is optional. |
| fpromise::promise<void, fuchsia_driver_framework::wire::NodeError> AddChild( |
| fidl::WireSharedClient<fuchsia_driver_framework::Node>& client, |
| fuchsia_driver_framework::wire::NodeAddArgs args, |
| fidl::ServerEnd<fuchsia_driver_framework::NodeController> controller, |
| fidl::ServerEnd<fuchsia_driver_framework::Node> node); |
| |
| } // namespace driver |
| |
| #endif // LIB_DRIVER2_PROMISE_H_ |