chromium/third_party/grpc/src/src/core/lib/transport/pid_controller.h

//
//
// Copyright 2016 gRPC authors.
//
// 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 GRPC_SRC_CORE_LIB_TRANSPORT_PID_CONTROLLER_H
#define GRPC_SRC_CORE_LIB_TRANSPORT_PID_CONTROLLER_H

#include <grpc/support/port_platform.h>

#include <limits>

// \file Simple PID controller.
// Implements a proportional-integral-derivative controller.
// Used when we want to iteratively control a variable to converge some other
// observed value to a 'set-point'.
// Gains can be set to adjust sensitivity to current error (p), the integral
// of error (i), and the derivative of error (d).

namespace grpc_core {

class PidController { … };

}  // namespace grpc_core

#endif  // GRPC_SRC_CORE_LIB_TRANSPORT_PID_CONTROLLER_H