1 /* 2 * Copyright (C) 2016 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_OPENJDKJVMTI_TI_HEAP_H_ 18 #define ART_OPENJDKJVMTI_TI_HEAP_H_ 19 20 #include "jvmti.h" 21 22 namespace openjdkjvmti { 23 24 class ObjectTagTable; 25 26 class HeapUtil { 27 public: HeapUtil(ObjectTagTable * tags)28 explicit HeapUtil(ObjectTagTable* tags) : tags_(tags) { 29 } 30 31 jvmtiError GetLoadedClasses(jvmtiEnv* env, jint* class_count_ptr, jclass** classes_ptr); 32 33 jvmtiError IterateOverInstancesOfClass(jvmtiEnv* env, 34 jclass klass, 35 jvmtiHeapObjectFilter filter, 36 jvmtiHeapObjectCallback cb, 37 const void* user_data); 38 39 jvmtiError IterateThroughHeap(jvmtiEnv* env, 40 jint heap_filter, 41 jclass klass, 42 const jvmtiHeapCallbacks* callbacks, 43 const void* user_data); 44 45 jvmtiError FollowReferences(jvmtiEnv* env, 46 jint heap_filter, 47 jclass klass, 48 jobject initial_object, 49 const jvmtiHeapCallbacks* callbacks, 50 const void* user_data); 51 52 static jvmtiError ForceGarbageCollection(jvmtiEnv* env); 53 GetTags()54 ObjectTagTable* GetTags() { 55 return tags_; 56 } 57 58 static void Register(); 59 static void Unregister(); 60 61 private: 62 ObjectTagTable* tags_; 63 }; 64 65 class HeapExtensions { 66 public: 67 static jvmtiError JNICALL GetObjectHeapId(jvmtiEnv* env, jlong tag, jint* heap_id, ...); 68 static jvmtiError JNICALL GetHeapName(jvmtiEnv* env, jint heap_id, char** heap_name, ...); 69 70 static jvmtiError JNICALL IterateThroughHeapExt(jvmtiEnv* env, 71 jint heap_filter, 72 jclass klass, 73 const jvmtiHeapCallbacks* callbacks, 74 const void* user_data); 75 }; 76 77 } // namespace openjdkjvmti 78 79 #endif // ART_OPENJDKJVMTI_TI_HEAP_H_ 80