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      1 /*
      2  * Copyright (C) 2011 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_COLLECTOR_GC_TYPE_H_
     18 #define ART_RUNTIME_GC_COLLECTOR_GC_TYPE_H_
     19 
     20 #include <iosfwd>
     21 
     22 namespace art {
     23 namespace gc {
     24 namespace collector {
     25 
     26 // The type of collection to be performed. The ordering of the enum matters, it is used to
     27 // determine which GCs are run first.
     28 enum GcType {
     29   // Placeholder for when no GC has been performed.
     30   kGcTypeNone,
     31   // Sticky mark bits GC that attempts to only free objects allocated since the last GC.
     32   kGcTypeSticky,
     33   // Partial GC that marks the application heap but not the Zygote.
     34   kGcTypePartial,
     35   // Full GC that marks and frees in both the application and Zygote heap.
     36   kGcTypeFull,
     37   // Number of different GC types.
     38   kGcTypeMax,
     39 };
     40 std::ostream& operator<<(std::ostream& os, const GcType& policy);
     41 
     42 }  // namespace collector
     43 }  // namespace gc
     44 }  // namespace art
     45 
     46 #endif  // ART_RUNTIME_GC_COLLECTOR_GC_TYPE_H_
     47