PerformanceHint.h (1004B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 * vim: set ts=8 sts=2 et sw=2 tw=80: 3 * This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef js_friend_PerformanceHint_h 8 #define js_friend_PerformanceHint_h 9 10 #include "jstypes.h" // JS_PUBLIC_API 11 #include "js/TypeDecls.h" // JSContext 12 13 namespace js { 14 namespace gc { 15 16 // API to let the DOM tell us whether we're currently in pageload. 17 // 18 // This currently affects nursery sizing; we tolerate large nursery sizes (and 19 // hence longer minor GC pauses) during pageload so as not to limit performance. 20 21 enum class PerformanceHint { Normal, InPageLoad }; 22 23 extern JS_PUBLIC_API void SetPerformanceHint(JSContext* cx, 24 PerformanceHint hint); 25 26 } /* namespace gc */ 27 } /* namespace js */ 28 29 #endif // js_friend_PerformanceHint_h