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// Copyright 2019 The Chromium 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 BASE_FUCHSIA_SERVICE_PROVIDER_IMPL_H_
#define BASE_FUCHSIA_SERVICE_PROVIDER_IMPL_H_
#include <fuchsia/io/cpp/fidl.h>
#include <fuchsia/sys/cpp/fidl.h>
#include <lib/fidl/cpp/binding_set.h>
#include <lib/fidl/cpp/interface_handle.h>
#include <lib/sys/cpp/component_context.h>
#include <lib/zx/channel.h>
#include <string>
#include "base/base_export.h"
#include "base/callback.h"
#include "base/macros.h"
namespace sys {
class OutgoingDirectory;
} // namespace sys
namespace base {
namespace fuchsia {
// Implementation of the legacy sys.ServiceProvider interface which delegates
// requests to an underlying fuchsia.io.Directory of services.
// TODO(https://crbug.com/920920): Remove this when ServiceProvider is gone.
class BASE_EXPORT ServiceProviderImpl : public ::fuchsia::sys::ServiceProvider {
public:
// Constructor that creates ServiceProvider for public services in the
// specified OutgoingDirectory.
static std::unique_ptr<ServiceProviderImpl> CreateForOutgoingDirectory(
sys::OutgoingDirectory* outgoing_directory);
explicit ServiceProviderImpl(
fidl::InterfaceHandle<::fuchsia::io::Directory> service_directory);
~ServiceProviderImpl() override;
// Binds a |request| from a new client to be serviced by this ServiceProvider.
void AddBinding(
fidl::InterfaceRequest<::fuchsia::sys::ServiceProvider> request);
// Sets a Closure to be invoked when the last client disconnects.
void SetOnLastClientDisconnectedClosure(
base::OnceClosure on_last_client_disconnected);
// Returns true if one or more clients are connected.
bool has_clients() const { return bindings_.size() != 0; }
private:
// fuchsia::sys::ServiceProvider implementation.
void ConnectToService(std::string service_name,
zx::channel client_handle) override;
void OnBindingSetEmpty();
const sys::ServiceDirectory directory_;
fidl::BindingSet<::fuchsia::sys::ServiceProvider> bindings_;
base::OnceClosure on_last_client_disconnected_;
DISALLOW_COPY_AND_ASSIGN(ServiceProviderImpl);
};
} // namespace fuchsia
} // namespace base
#endif // BASE_FUCHSIA_SERVICE_PROVIDER_IMPL_H_
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