From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- toolkit/xre/DllPrefetchExperimentRegistryInfo.h | 50 +++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 toolkit/xre/DllPrefetchExperimentRegistryInfo.h (limited to 'toolkit/xre/DllPrefetchExperimentRegistryInfo.h') diff --git a/toolkit/xre/DllPrefetchExperimentRegistryInfo.h b/toolkit/xre/DllPrefetchExperimentRegistryInfo.h new file mode 100644 index 0000000000..26cba51dcf --- /dev/null +++ b/toolkit/xre/DllPrefetchExperimentRegistryInfo.h @@ -0,0 +1,50 @@ +/* -*- 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 ReflectPrefToRegistry(int32_t aVal); + Result ReadRegistryValueData(DWORD expectedType); + + AlteredDllPrefetchMode GetAlteredDllPrefetchMode(); + + private: + Result Open(); + + nsAutoRegKey mRegKey; + nsString mBinPath; + int32_t mPrefetchMode; + + static const wchar_t kExperimentSubKeyPath[]; +}; + +} // namespace mozilla + +#endif // mozilla_DllPrefetchExperimentRegistryInfo_h -- cgit v1.2.3