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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_DBUS_COMMON_BLOCKING_METHOD_CALLER_H_
#define CHROMEOS_DBUS_COMMON_BLOCKING_METHOD_CALLER_H_
#include <memory>
#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "base/types/expected.h"
#include "dbus/message.h"
namespace dbus {
class Bus;
class Error;
class ObjectProxy;
} // namespace dbus
namespace chromeos {
// A utility class to call D-Bus methods in a synchronous (blocking) way.
// Note: Blocking the thread until it returns is not a good idea in most cases.
// Avoid using this class as hard as you can.
class COMPONENT_EXPORT(CHROMEOS_DBUS_COMMON) BlockingMethodCaller {
public:
BlockingMethodCaller(dbus::Bus* bus, dbus::ObjectProxy* proxy);
BlockingMethodCaller(const BlockingMethodCaller&) = delete;
BlockingMethodCaller& operator=(const BlockingMethodCaller&) = delete;
virtual ~BlockingMethodCaller();
// Calls the method and blocks until it returns.
base::expected<std::unique_ptr<dbus::Response>, dbus::Error>
CallMethodAndBlock(dbus::MethodCall* method_call);
private:
raw_ptr<dbus::Bus> bus_;
raw_ptr<dbus::ObjectProxy> proxy_;
};
} // namespace chromeos
#endif // CHROMEOS_DBUS_COMMON_BLOCKING_METHOD_CALLER_H_
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