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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
#ifndef mozilla_DllPrefetchExperimentRegistryInfo_h
#define mozilla_DllPrefetchExperimentRegistryInfo_h
#include "mozilla/Maybe.h"
#include "mozilla/WinHeaderOnlyUtils.h"
#include "nsWindowsHelpers.h"
/**
* This is a temporary file in order to conduct an experiment on the impact of
* startup time on retention (see Bug 1640087).
* This was generally adapted from LauncherRegistryInfo.h
*/
namespace mozilla {
enum class AlteredDllPrefetchMode {
CurrentPrefetch,
NoPrefetch,
OptimizedPrefetch
};
class DllPrefetchExperimentRegistryInfo final {
public:
DllPrefetchExperimentRegistryInfo() : mBinPath(GetFullBinaryPath().get()) {}
~DllPrefetchExperimentRegistryInfo() {}
Result<Ok, nsresult> ReflectPrefToRegistry(int32_t aVal);
Result<Ok, nsresult> ReadRegistryValueData(DWORD expectedType);
AlteredDllPrefetchMode GetAlteredDllPrefetchMode();
private:
Result<Ok, nsresult> Open();
nsAutoRegKey mRegKey;
nsString mBinPath;
int32_t mPrefetchMode;
static const wchar_t kExperimentSubKeyPath[];
};
} // namespace mozilla
#endif // mozilla_DllPrefetchExperimentRegistryInfo_h
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