Program Listing for File loaned_state_interface.hpp
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// Copyright 2020 Open Source Robotics Foundation, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef HARDWARE_INTERFACE__LOANED_STATE_INTERFACE_HPP_
#define HARDWARE_INTERFACE__LOANED_STATE_INTERFACE_HPP_
#include <functional>
#include <string>
#include <utility>
#include "hardware_interface/handle.hpp"
namespace hardware_interface
{
class LoanedStateInterface
{
public:
using Deleter = std::function<void(void)>;
explicit LoanedStateInterface(StateInterface & state_interface)
: LoanedStateInterface(state_interface, nullptr)
{
}
LoanedStateInterface(StateInterface & state_interface, Deleter && deleter)
: state_interface_(state_interface), deleter_(std::forward<Deleter>(deleter))
{
}
LoanedStateInterface(const LoanedStateInterface & other) = delete;
LoanedStateInterface(LoanedStateInterface && other) = default;
virtual ~LoanedStateInterface()
{
if (deleter_)
{
deleter_();
}
}
const std::string get_name() const { return state_interface_.get_name(); }
const std::string & get_interface_name() const { return state_interface_.get_interface_name(); }
[[deprecated(
"Replaced by get_name method, which is semantically more correct")]] const std::string
get_full_name() const
{
return state_interface_.get_name();
}
const std::string & get_prefix_name() const { return state_interface_.get_prefix_name(); }
double get_value() const { return state_interface_.get_value(); }
protected:
StateInterface & state_interface_;
Deleter deleter_;
};
} // namespace hardware_interface
#endif // HARDWARE_INTERFACE__LOANED_STATE_INTERFACE_HPP_