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// Copyright 2022 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.
#ifndef INCLUDED_SRC_BUILDTOOL_PROGRESS_REPORTING_PROGRESS_HPP
#define INCLUDED_SRC_BUILDTOOL_PROGRESS_REPORTING_PROGRESS_HPP
#include <cstdint>
#include <mutex>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "src/buildtool/build_engine/target_map/configured_target.hpp"
#include "src/buildtool/logging/logger.hpp"
class Progress {
public:
[[nodiscard]] static auto Instance() noexcept -> Progress& {
static Progress instance{};
return instance;
}
void Start(const std::string& id) noexcept {
std::unique_lock lock(m_);
++prio_;
try {
running_.emplace(id, prio_);
} catch (...) {
Logger::Log(LogLevel::Warning,
"Internal error in progress tracking; progress reports "
"might be incorrect.");
}
}
void Stop(const std::string& id) noexcept {
std::unique_lock lock(m_);
running_.erase(id);
}
auto Sample() -> std::string {
std::unique_lock lock(m_);
std::string result;
uint64_t started = prio_ + 1;
for (auto const& it : running_) {
if (it.second < started) {
result = it.first;
started = it.second;
}
}
return result;
}
// Return a reference to the origin map. It is the responsibility
// of the caller to ensure that access only happens in a
// single-threaded context.
auto OriginMap() -> std::unordered_map<
std::string,
std::vector<
std::pair<BuildMaps::Target::ConfiguredTarget, std::size_t>>>& {
return origin_map_;
}
private:
uint64_t prio_{};
std::mutex m_{};
std::unordered_map<std::string, uint64_t> running_{};
std::unordered_map<
std::string,
std::vector<
std::pair<BuildMaps::Target::ConfiguredTarget, std::size_t>>>
origin_map_;
};
#endif
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