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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/dbus/runtime_probe/runtime_probe_client.h"
#include <string>
#include <utility>
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "chromeos/ash/components/dbus/runtime_probe/fake_runtime_probe_client.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "third_party/cros_system_api/dbus/runtime_probe/dbus-constants.h"
namespace ash {
namespace {
RuntimeProbeClient* g_instance = nullptr;
class RuntimeProbeClientImpl : public RuntimeProbeClient {
public:
RuntimeProbeClientImpl() {}
RuntimeProbeClientImpl(const RuntimeProbeClientImpl&) = delete;
RuntimeProbeClientImpl& operator=(const RuntimeProbeClientImpl&) = delete;
~RuntimeProbeClientImpl() override = default;
// RuntimeProbeClient override:
void ProbeCategories(const runtime_probe::ProbeRequest& request,
RuntimeProbeCallback callback) override {
dbus::MethodCall method_call(runtime_probe::kRuntimeProbeInterfaceName,
runtime_probe::kProbeCategoriesMethod);
dbus::MessageWriter writer(&method_call);
if (!writer.AppendProtoAsArrayOfBytes(request)) {
LOG(ERROR) << "Failed to encode ProbeRequest protobuf";
std::move(callback).Run(std::nullopt);
return;
}
proxy_->CallMethod(
&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::BindOnce(&RuntimeProbeClientImpl::OnProbeCategories,
weak_ptr_factory_.GetWeakPtr(), std::move(callback)));
}
void Init(dbus::Bus* bus) override {
proxy_ = bus->GetObjectProxy(
runtime_probe::kRuntimeProbeServiceName,
dbus::ObjectPath(runtime_probe::kRuntimeProbeServicePath));
if (!proxy_) {
LOG(ERROR) << "Unable to get dbus proxy for "
<< runtime_probe::kRuntimeProbeServiceName;
}
}
private:
void OnProbeCategories(RuntimeProbeCallback callback,
dbus::Response* response) {
if (!response) {
std::move(callback).Run(std::nullopt);
return;
}
runtime_probe::ProbeResult response_proto;
dbus::MessageReader reader(response);
if (!reader.PopArrayOfBytesAsProto(&response_proto)) {
LOG(ERROR) << "Failed to parse proto from " << response->GetMember();
std::move(callback).Run(std::nullopt);
return;
}
std::move(callback).Run(response_proto);
}
raw_ptr<dbus::ObjectProxy> proxy_ = nullptr;
// Note: This should remain the last member so it'll be destroyed and
// invalidate its weak pointers before any other members are destroyed.
base::WeakPtrFactory<RuntimeProbeClientImpl> weak_ptr_factory_{this};
};
} // namespace
// static
RuntimeProbeClient* RuntimeProbeClient::Get() {
return g_instance;
}
// static
void RuntimeProbeClient::Initialize(dbus::Bus* bus) {
CHECK(bus);
(new RuntimeProbeClientImpl())->Init(bus);
}
// static
void RuntimeProbeClient::InitializeFake() {
(new FakeRuntimeProbeClient())->Init(nullptr);
}
// static
void RuntimeProbeClient::Shutdown() {
CHECK(g_instance);
delete g_instance;
}
RuntimeProbeClient::RuntimeProbeClient() {
CHECK(!g_instance);
g_instance = this;
}
RuntimeProbeClient::~RuntimeProbeClient() {
CHECK_EQ(g_instance, this);
g_instance = nullptr;
}
} // namespace ash
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