Path: blob/master/src/hotspot/share/runtime/flags/flagSetting.hpp
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/*1* Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.2* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.3*4* This code is free software; you can redistribute it and/or modify it5* under the terms of the GNU General Public License version 2 only, as6* published by the Free Software Foundation.7*8* This code is distributed in the hope that it will be useful, but WITHOUT9* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or10* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License11* version 2 for more details (a copy is included in the LICENSE file that12* accompanied this code).13*14* You should have received a copy of the GNU General Public License version15* 2 along with this work; if not, write to the Free Software Foundation,16* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.17*18* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA19* or visit www.oracle.com if you need additional information or have any20* questions.21*22*/2324#ifndef SHARE_RUNTIME_FLAGS_FLAGSETTING_HPP25#define SHARE_RUNTIME_FLAGS_FLAGSETTING_HPP2627#include "utilities/autoRestore.hpp"2829// Legacy use of FlagSetting and UIntFlagSetting to temporarily change a debug30// flag/option in the current (local) scope.31//32// Example:33// {34// FlagSetting temporarily(DebugThisAndThat, true);35// . . .36// }37//38// The previous/original value is restored when leaving the scope.3940typedef AutoModifyRestore<bool> FlagSetting;41typedef AutoModifyRestore<uint> UIntFlagSetting;4243// Legacy use of FLAG_GUARD. Retained in the code to help identify use-cases44// that should be addressed when this file is removed.4546#define FLAG_GUARD(f) f ## _guard(f)4748#endif // SHARE_RUNTIME_FLAGS_FLAGSETTING_HPP495051