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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_OPENJDKJVMTI_TI_HEAP_H_
#define ART_OPENJDKJVMTI_TI_HEAP_H_
#include <unordered_map>
#include "jvmti.h"
#include "base/locks.h"
namespace art {
class Thread;
template<typename T> class ObjPtr;
class HashObjPtr;
namespace mirror {
class Object;
} // namespace mirror
} // namespace art
namespace openjdkjvmti {
class EventHandler;
class ObjectTagTable;
class HeapUtil {
public:
explicit HeapUtil(ObjectTagTable* tags) : tags_(tags) {
}
jvmtiError GetLoadedClasses(jvmtiEnv* env, jint* class_count_ptr, jclass** classes_ptr);
jvmtiError IterateOverInstancesOfClass(jvmtiEnv* env,
jclass klass,
jvmtiHeapObjectFilter filter,
jvmtiHeapObjectCallback cb,
const void* user_data);
jvmtiError IterateThroughHeap(jvmtiEnv* env,
jint heap_filter,
jclass klass,
const jvmtiHeapCallbacks* callbacks,
const void* user_data);
jvmtiError FollowReferences(jvmtiEnv* env,
jint heap_filter,
jclass klass,
jobject initial_object,
const jvmtiHeapCallbacks* callbacks,
const void* user_data);
static jvmtiError ForceGarbageCollection(jvmtiEnv* env);
ObjectTagTable* GetTags() {
return tags_;
}
static void Register();
static void Unregister();
private:
ObjectTagTable* tags_;
};
class HeapExtensions {
public:
static void Register(EventHandler* eh);
static jvmtiError JNICALL GetObjectHeapId(jvmtiEnv* env, jlong tag, jint* heap_id, ...);
static jvmtiError JNICALL GetHeapName(jvmtiEnv* env, jint heap_id, char** heap_name, ...);
static jvmtiError JNICALL IterateThroughHeapExt(jvmtiEnv* env,
jint heap_filter,
jclass klass,
const jvmtiHeapCallbacks* callbacks,
const void* user_data);
static jvmtiError JNICALL ChangeArraySize(jvmtiEnv* env, jobject arr, jsize new_size);
static void ReplaceReferences(
art::Thread* self,
const std::unordered_map<art::ObjPtr<art::mirror::Object>,
art::ObjPtr<art::mirror::Object>,
art::HashObjPtr>& refs)
REQUIRES(art::Locks::mutator_lock_, art::Roles::uninterruptible_);
static void ReplaceReference(art::Thread* self,
art::ObjPtr<art::mirror::Object> original,
art::ObjPtr<art::mirror::Object> replacement)
REQUIRES(art::Locks::mutator_lock_,
art::Roles::uninterruptible_);
private:
static EventHandler* gEventHandler;
};
} // namespace openjdkjvmti
#endif // ART_OPENJDKJVMTI_TI_HEAP_H_
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