cartographer/cartographer_grpc/framework/retry.h

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/*
* Copyright 2018 The Cartographer 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 CARTOGRAPHER_GRPC_FRAMEWORK_RETRY_H
#define CARTOGRAPHER_GRPC_FRAMEWORK_RETRY_H
#include "cartographer/common/optional.h"
#include "cartographer/common/time.h"
#include "grpc++/grpc++.h"
namespace cartographer_grpc {
namespace framework {
using cartographer::common::Duration;
using cartographer::common::optional;
using RetryStrategy =
std::function<optional<Duration>(int /* failed_attempts */)>;
using RetryIndicator = std::function<bool(int /* failed_attempts */)>;
using RetryDelayCalculator = std::function<Duration(int /* failed_attempts */)>;
RetryStrategy CreateRetryStrategy(RetryIndicator retry_indicator,
RetryDelayCalculator retry_delay_calculator);
RetryIndicator CreateLimitedRetryIndicator(int max_attempts);
RetryDelayCalculator CreateBackoffDelayCalculator(Duration min_delay,
float backoff_factor);
RetryStrategy CreateLimitedBackoffStrategy(Duration min_delay,
float backoff_factor,
int max_attempts);
bool RetryWithStrategy(RetryStrategy retry_strategy, std::function<bool()> op,
std::function<void()> reset = nullptr);
} // namespace framework
} // namespace cartographer_grpc
#endif // CARTOGRAPHER_GRPC_FRAMEWORK_RETRY_H