// Copyright 2017 The Crashpad Authors
//
// 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 CRASHPAD_TEST_WIN_WIN_MULTIPROCESS_WITH_TEMPDIR_H_
#define CRASHPAD_TEST_WIN_WIN_MULTIPROCESS_WITH_TEMPDIR_H_
#include <wchar.h>
#include <windows.h>
#include <memory>
#include <string>
#include "base/files/file_path.h"
#include "test/scoped_temp_dir.h"
#include "test/win/win_multiprocess.h"
namespace crashpad {
namespace test {
//! \brief Manages a multiprocess test on Windows with a parent-created
//! temporary directory.
//!
//! This class creates a temp directory in the parent process for the use of
//! the subprocess and its children. To ensure a raceless rundown, it waits on
//! the child process and any processes directly created by the child before
//! deleting the temporary directory.
class WinMultiprocessWithTempDir : public WinMultiprocess {
public:
WinMultiprocessWithTempDir();
WinMultiprocessWithTempDir(const WinMultiprocessWithTempDir&) = delete;
WinMultiprocessWithTempDir& operator=(const WinMultiprocessWithTempDir&) =
delete;
protected:
void WinMultiprocessParentBeforeChild() override;
void WinMultiprocessParentAfterChild(HANDLE child) override;
//! \brief Returns the path of the temp directory.
base::FilePath GetTempDirPath() const;
private:
class ScopedEnvironmentVariable {
public:
explicit ScopedEnvironmentVariable(const wchar_t* name);
ScopedEnvironmentVariable(const ScopedEnvironmentVariable&) = delete;
ScopedEnvironmentVariable& operator=(const ScopedEnvironmentVariable&) =
delete;
~ScopedEnvironmentVariable();
std::wstring GetValue() const;
// Sets this environment variable to |new_value|. If |new_value| is nullptr
// this environment variable will be undefined.
void SetValue(const wchar_t* new_value) const;
private:
std::wstring GetValueImpl(bool* is_defined) const;
std::wstring original_value_;
const wchar_t* name_;
bool was_defined_;
};
std::unique_ptr<ScopedTempDir> temp_dir_;
ScopedEnvironmentVariable temp_dir_env_;
};
} // namespace test
} // namespace crashpad
#endif // CRASHPAD_TEST_WIN_WIN_MULTIPROCESS_WITH_TEMPDIR_H_