blob: 35ba24546d3e7ddf5e1d3330d5ae57bedfe88090 [file] [log] [blame]
// 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.
#include <fidl/fuchsia.component.runner/cpp/wire.h>
#include <lib/fdio/namespace.h>
namespace driver {
namespace internal {
zx::status<> DirectoryOpenFunc(zx::unowned_channel dir, fidl::StringView path, zx::channel remote);
} // namespace internal
// Manages a driver's namespace.
class Namespace {
// Creates a namespace from `DriverStartArgs::ns`.
static zx::status<Namespace> Create(
fidl::VectorView<fuchsia_component_runner::wire::ComponentNamespaceEntry>& entries);
Namespace() = default;
Namespace(Namespace&& other) noexcept;
Namespace& operator=(Namespace&& other) noexcept;
// Connect to a protocol within a driver's namespace.
template <typename T>
zx::status<fidl::ClientEnd<T>> Connect(
std::string_view path = fidl::DiscoverableProtocolDefaultPath<T>,
fuchsia_io::wire::OpenFlags flags = fuchsia_io::wire::OpenFlags::kRightReadable) const {
auto endpoints = fidl::CreateEndpoints<T>();
if (endpoints.is_error()) {
return endpoints.take_error();
auto result = Connect(path, endpoints->server.TakeChannel(), flags);
if (result.is_error()) {
return result.take_error();
return zx::ok(std::move(endpoints->client));
// Connect to a service within a driver's namespace.
template <typename FidlService>
zx::status<typename FidlService::ServiceClient> OpenService(std::string_view instance) const {
std::string path = std::string("/") + FidlService::Name + "/" + std::string(instance);
auto result =
Connect<fuchsia_io::Directory>(path, fuchsia_io::wire::OpenFlags::kRightReadable |
if (result.is_error()) {
return result.take_error();
return zx::ok(typename FidlService::ServiceClient(std::move(result.value().TakeChannel()),
zx::status<> Connect(
std::string_view path, zx::channel server_end,
fuchsia_io::wire::OpenFlags flags = fuchsia_io::wire::OpenFlags::kRightReadable |
fuchsia_io::wire::OpenFlags::kRightWritable) const;
explicit Namespace(fdio_ns_t* ns);
Namespace(const Namespace& other) = delete;
Namespace& operator=(const Namespace& other) = delete;
fdio_ns_t* ns_ = nullptr;
} // namespace driver