/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_MONITOR_OBJECTS_STACK_VISITOR_H_
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#define ART_RUNTIME_MONITOR_OBJECTS_STACK_VISITOR_H_
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#include <android-base/logging.h>
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#include "art_method.h"
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#include "base/locks.h"
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#include "monitor.h"
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#include "stack.h"
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#include "thread.h"
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#include "thread_state.h"
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namespace art {
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namespace mirror {
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class Object;
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}
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class Context;
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class MonitorObjectsStackVisitor : public StackVisitor {
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public:
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MonitorObjectsStackVisitor(Thread* thread_in,
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Context* context,
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bool check_suspended = true,
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bool dump_locks_in = true)
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REQUIRES_SHARED(Locks::mutator_lock_)
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: StackVisitor(thread_in,
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context,
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StackVisitor::StackWalkKind::kIncludeInlinedFrames,
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check_suspended),
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frame_count(0u),
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dump_locks(dump_locks_in) {}
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enum class VisitMethodResult {
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kContinueMethod,
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kSkipMethod,
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kEndStackWalk,
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};
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bool VisitFrame() final REQUIRES_SHARED(Locks::mutator_lock_);
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protected:
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virtual VisitMethodResult StartMethod(ArtMethod* m, size_t frame_nr)
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REQUIRES_SHARED(Locks::mutator_lock_) = 0;
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virtual VisitMethodResult EndMethod(ArtMethod* m)
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REQUIRES_SHARED(Locks::mutator_lock_) = 0;
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virtual void VisitWaitingObject(ObjPtr<mirror::Object> obj, ThreadState state)
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REQUIRES_SHARED(Locks::mutator_lock_) = 0;
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virtual void VisitSleepingObject(ObjPtr<mirror::Object> obj)
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REQUIRES_SHARED(Locks::mutator_lock_) = 0;
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virtual void VisitBlockedOnObject(ObjPtr<mirror::Object> obj,
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ThreadState state,
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uint32_t owner_tid)
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REQUIRES_SHARED(Locks::mutator_lock_) = 0;
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virtual void VisitLockedObject(ObjPtr<mirror::Object> obj)
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REQUIRES_SHARED(Locks::mutator_lock_) = 0;
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size_t frame_count;
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private:
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static void VisitLockedObject(ObjPtr<mirror::Object> o, void* context)
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REQUIRES_SHARED(Locks::mutator_lock_);
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const bool dump_locks;
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};
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} // namespace art
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#endif // ART_RUNTIME_MONITOR_OBJECTS_STACK_VISITOR_H_
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