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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_TEST_BASE_PROCESS_LINEAGE_WIN_H_
#define CHROME_TEST_BASE_PROCESS_LINEAGE_WIN_H_
#include <string>
#include <utility>
#include <vector>
#include "base/win/windows_types.h"
// Holds the lineage of a process; specifically, the pid and command line of the
// process and each of its ancestors that are still running. Due to aggressive
// pid reuse on Windows, it's possible that the collection may contain
// misleading information. Since the goal of this method is to get useful data
// in the aggregate, some misleading info here and there is tolerable. If it
// proves to be intolerable, additional checks can be added to be sure that each
// ancestor is older that its child.
class ProcessLineage {
public:
struct ProcessProperties {
DWORD process_id;
std::wstring command_line;
};
// Returns the lineage of |process_id| or an empty instance in case of error.
static ProcessLineage Create(DWORD process_id);
ProcessLineage(ProcessLineage&& other);
ProcessLineage& operator=(ProcessLineage&& other);
~ProcessLineage();
bool IsEmpty() const { return lineage_.empty(); }
std::wstring ToString() const;
ProcessLineage(const ProcessLineage&) = delete;
ProcessLineage& operator=(const ProcessLineage&) = delete;
private:
explicit ProcessLineage(std::vector<ProcessProperties> lineage);
std::vector<ProcessProperties> lineage_;
};
#endif // CHROME_TEST_BASE_PROCESS_LINEAGE_WIN_H_
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