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/*
* Copyright (C) 2014 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_RUNTIME_MONITOR_OBJECTS_STACK_VISITOR_H_
#define ART_RUNTIME_MONITOR_OBJECTS_STACK_VISITOR_H_
#include <android-base/logging.h>
#include "art_method.h"
#include "base/locks.h"
#include "monitor.h"
#include "stack.h"
#include "thread.h"
#include "thread_state.h"
namespace art {
namespace mirror {
class Object;
}
class Context;
class MonitorObjectsStackVisitor : public StackVisitor {
public:
MonitorObjectsStackVisitor(Thread* thread_in,
Context* context,
bool check_suspended = true,
bool dump_locks_in = true)
REQUIRES_SHARED(Locks::mutator_lock_)
: StackVisitor(thread_in,
context,
StackVisitor::StackWalkKind::kIncludeInlinedFrames,
check_suspended),
frame_count(0u),
dump_locks(dump_locks_in) {}
enum class VisitMethodResult {
kContinueMethod,
kSkipMethod,
kEndStackWalk,
};
bool VisitFrame() final REQUIRES_SHARED(Locks::mutator_lock_);
protected:
virtual VisitMethodResult StartMethod(ArtMethod* m, size_t frame_nr)
REQUIRES_SHARED(Locks::mutator_lock_) = 0;
virtual VisitMethodResult EndMethod(ArtMethod* m)
REQUIRES_SHARED(Locks::mutator_lock_) = 0;
virtual void VisitWaitingObject(ObjPtr<mirror::Object> obj, ThreadState state)
REQUIRES_SHARED(Locks::mutator_lock_) = 0;
virtual void VisitSleepingObject(ObjPtr<mirror::Object> obj)
REQUIRES_SHARED(Locks::mutator_lock_) = 0;
virtual void VisitBlockedOnObject(ObjPtr<mirror::Object> obj,
ThreadState state,
uint32_t owner_tid)
REQUIRES_SHARED(Locks::mutator_lock_) = 0;
virtual void VisitLockedObject(ObjPtr<mirror::Object> obj)
REQUIRES_SHARED(Locks::mutator_lock_) = 0;
size_t frame_count;
private:
static void VisitLockedObject(ObjPtr<mirror::Object> o, void* context)
REQUIRES_SHARED(Locks::mutator_lock_);
const bool dump_locks;
};
} // namespace art
#endif // ART_RUNTIME_MONITOR_OBJECTS_STACK_VISITOR_H_
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