blob: 5417febe7b2c986248ac4da9087ac350882efddb [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 <lib/async-loop/cpp/loop.h>
#include <lib/fidl/cpp/binding.h>
#include <lib/inspect/component/cpp/component.h>
#include <lib/sys/cpp/component_context.h>
#include <lib/syslog/cpp/macros.h>
#include <memory>
#include "src/lib/timekeeper/clock.h"
#include "src/lib/timekeeper/system_clock.h"
namespace forensics {
namespace component {
// Forensics components all use the same basic machinery to function. Component groups that
// machinery together and provides some additional information about the component instance that has
// been started.
// To properly use this class a component must have access to the "isolated-temp" feature in its
// sandbox and all instances of the component must have non-overlapping lifetimes and share the same
// namespace.
class Component {
explicit Component();
async_dispatcher_t* Dispatcher();
std::shared_ptr<sys::ServiceDirectory> Services();
inspect::Node* InspectRoot();
timekeeper::Clock* Clock();
zx_status_t RunLoop();
void ShutdownLoop();
template <typename Interface>
zx_status_t AddPublicService(::fidl::InterfaceRequestHandler<Interface> handler,
std::string service_name = Interface::Name_) {
return context_->outgoing()->AddPublicService(std::move(handler), std::move(service_name));
// Returns true if this is the first time an instance of the current component has been started
// since boot.
bool IsFirstInstance() const;
// Constructor for testing when the component should run on a different loop than |loop_|.
Component(async_dispatcher_t* dispatcher, std::unique_ptr<sys::ComponentContext> context);
size_t InitialInstanceIndex() const;
void WriteInstanceIndex() const;
async::Loop loop_;
async_dispatcher_t* dispatcher_;
std::unique_ptr<sys::ComponentContext> context_;
inspect::ComponentInspector inspector_;
timekeeper::SystemClock clock_;
size_t instance_index_;
} // namespace component
} // namespace forensics