1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_RUNTIME_GC_WEAK_ROOT_STATE_H_ 18 #define ART_RUNTIME_GC_WEAK_ROOT_STATE_H_ 19 20 #include <iosfwd> 21 22 namespace art { 23 namespace gc { 24 25 enum WeakRootState { 26 // Can read or add weak roots. 27 kWeakRootStateNormal, 28 // Need to wait until we can read weak roots. 29 kWeakRootStateNoReadsOrWrites, 30 // Need to mark new weak roots to make sure they don't get swept. 31 // kWeakRootStateMarkNewRoots is currently unused but I was planning on using to allow adding new 32 // weak roots during the CMS reference processing phase. 33 kWeakRootStateMarkNewRoots, 34 }; 35 36 std::ostream& operator<<(std::ostream& os, const WeakRootState&); 37 38 } // namespace gc 39 } // namespace art 40 41 #endif // ART_RUNTIME_GC_WEAK_ROOT_STATE_H_ 42
