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// Copyright 2024 Huawei Cloud Computing Technology Co., Ltd.
//
// 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.
#include "src/buildtool/common/remote/retry.hpp"
#ifndef BOOTSTRAP_BUILD_TOOL
#include <chrono>
#include <thread>
#include "src/buildtool/logging/log_level.hpp"
auto WithRetry(CallableReturningRetryResponse const& f,
RetryConfig const& retry_config,
Logger const& logger) noexcept -> bool {
try {
auto const& attempts = retry_config.GetMaxAttempts();
for (auto attempt = 1U; attempt <= attempts; ++attempt) {
auto [ok, fatal, error_msg] = f();
if (ok) {
return true;
}
if (fatal) {
if (error_msg) {
logger.Emit(LogLevel::Error, "{}", *error_msg);
}
return false;
}
// don't wait if it was the last attempt
if (attempt < attempts) {
auto const sleep_for_seconds =
retry_config.GetSleepTimeSeconds(attempt);
logger.Emit(kRetryLogLevel,
"Attempt {}/{} failed{} Retrying in {} seconds.",
attempt,
attempts,
error_msg ? fmt::format(": {}", *error_msg) : ".",
sleep_for_seconds);
std::this_thread::sleep_for(
std::chrono::seconds(sleep_for_seconds));
}
else {
if (error_msg) {
logger.Emit(LogLevel::Error,
"After {} attempts: {}",
attempt,
*error_msg);
}
}
}
} catch (...) {
logger.Emit(LogLevel::Error, "WithRetry: caught unknown exception");
}
return false;
}
auto WithRetry(CallableReturningGrpcStatus const& f,
RetryConfig const& retry_config,
Logger const& logger) noexcept -> std::pair<bool, grpc::Status> {
grpc::Status status{};
try {
auto attempts = retry_config.GetMaxAttempts();
for (auto attempt = 1U; attempt <= attempts; ++attempt) {
status = f();
if (status.ok() or
((status.error_code() != grpc::StatusCode::UNAVAILABLE) and
(status.error_code() !=
grpc::StatusCode::DEADLINE_EXCEEDED))) {
return {status.ok(), std::move(status)};
}
// don't wait if it was the last attempt
if (attempt < attempts) {
auto const sleep_for_seconds =
retry_config.GetSleepTimeSeconds(attempt);
logger.Emit(
kRetryLogLevel,
"Attempt {}/{} failed: {}: {}: Retrying in {} seconds.",
attempt,
attempts,
static_cast<int>(status.error_code()),
status.error_message(),
sleep_for_seconds);
std::this_thread::sleep_for(
std::chrono::seconds(sleep_for_seconds));
}
else {
// The caller performs a second check on the
// status.error_code(), and, eventually, emits to Error level
// there.
//
// To avoid duplication of similar errors, we emit to Debug
// level.
logger.Emit(LogLevel::Debug,
"After {} attempts: {}: {}",
attempt,
static_cast<int>(status.error_code()),
status.error_message());
}
}
} catch (...) {
logger.Emit(LogLevel::Error, "WithRetry: caught unknown exception");
}
return {false, std::move(status)};
}
#endif // BOOTSTRAP_BUILD_TOOL
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