subprocess_waiter.h

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/*
 * Copyright (C) 2022 The Android Open Source Project
 *
 * 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.
 */
 
#pragma once
 
#include <mutex>
#include <optional>
 
#include "cuttlefish/process/command.h"
#include "cuttlefish/result/result.h"
 
namespace cuttlefish {
 
class SubprocessWaiter {
 public:
  SubprocessWaiter() {}
 
  Result<void> Setup(Command&);
  Result<siginfo_t> Wait();
  Result<void> Interrupt();
 
 private:
  std::optional<Subprocess> subprocess_;
  std::mutex interruptible_;
  bool interrupted_ = false;
};
 
}  // namespace cuttlefish