host/commands/cvd/server_command_subprocess_waiter.h

/*
 * 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 <fruit/fruit.h>

#include "common/libs/utils/result.h"
#include "common/libs/utils/subprocess.h"

namespace cuttlefish {
namespace cvd_cmd_impl {

class SubprocessWaiter {
 public:
  INJECT(SubprocessWaiter()) {}

  Result<void> Setup(Subprocess subprocess);
  Result<siginfo_t> Wait();
  Result<void> Interrupt();

 private:
  std::optional<Subprocess> subprocess_;
  std::mutex interruptible_;
  bool interrupted_ = false;
};

}  // namespace cvd_cmd_impl
}  // namespace cuttlefish