Andreas Gampe | 9310495 | 2017-12-13 17:13:15 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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_MONITOR_OBJECTS_STACK_VISITOR_H_ |
| 18 | #define ART_RUNTIME_MONITOR_OBJECTS_STACK_VISITOR_H_ |
| 19 | |
| 20 | #include <android-base/logging.h> |
| 21 | |
| 22 | #include "art_method.h" |
Andreas Gampe | 7fbc4a5 | 2018-11-28 08:26:47 -0800 | [diff] [blame] | 23 | #include "base/locks.h" |
Andreas Gampe | 9310495 | 2017-12-13 17:13:15 -0800 | [diff] [blame] | 24 | #include "monitor.h" |
| 25 | #include "stack.h" |
| 26 | #include "thread.h" |
| 27 | #include "thread_state.h" |
| 28 | |
| 29 | namespace art { |
| 30 | |
| 31 | namespace mirror { |
| 32 | class Object; |
| 33 | } |
| 34 | |
| 35 | class Context; |
| 36 | |
| 37 | class MonitorObjectsStackVisitor : public StackVisitor { |
| 38 | public: |
| 39 | MonitorObjectsStackVisitor(Thread* thread_in, |
| 40 | Context* context, |
| 41 | bool check_suspended = true, |
| 42 | bool dump_locks_in = true) |
| 43 | REQUIRES_SHARED(Locks::mutator_lock_) |
| 44 | : StackVisitor(thread_in, |
| 45 | context, |
| 46 | StackVisitor::StackWalkKind::kIncludeInlinedFrames, |
| 47 | check_suspended), |
| 48 | frame_count(0u), |
| 49 | dump_locks(dump_locks_in) {} |
| 50 | |
| 51 | enum class VisitMethodResult { |
| 52 | kContinueMethod, |
| 53 | kSkipMethod, |
| 54 | kEndStackWalk, |
| 55 | }; |
| 56 | |
Vladimir Marko | f52d92f | 2019-03-29 12:33:02 +0000 | [diff] [blame] | 57 | bool VisitFrame() final REQUIRES_SHARED(Locks::mutator_lock_); |
Andreas Gampe | 9310495 | 2017-12-13 17:13:15 -0800 | [diff] [blame] | 58 | |
| 59 | protected: |
| 60 | virtual VisitMethodResult StartMethod(ArtMethod* m, size_t frame_nr) |
| 61 | REQUIRES_SHARED(Locks::mutator_lock_) = 0; |
| 62 | virtual VisitMethodResult EndMethod(ArtMethod* m) |
| 63 | REQUIRES_SHARED(Locks::mutator_lock_) = 0; |
| 64 | |
Vladimir Marko | f52d92f | 2019-03-29 12:33:02 +0000 | [diff] [blame] | 65 | virtual void VisitWaitingObject(ObjPtr<mirror::Object> obj, ThreadState state) |
Andreas Gampe | 9310495 | 2017-12-13 17:13:15 -0800 | [diff] [blame] | 66 | REQUIRES_SHARED(Locks::mutator_lock_) = 0; |
Vladimir Marko | f52d92f | 2019-03-29 12:33:02 +0000 | [diff] [blame] | 67 | virtual void VisitSleepingObject(ObjPtr<mirror::Object> obj) |
Andreas Gampe | 9310495 | 2017-12-13 17:13:15 -0800 | [diff] [blame] | 68 | REQUIRES_SHARED(Locks::mutator_lock_) = 0; |
Vladimir Marko | f52d92f | 2019-03-29 12:33:02 +0000 | [diff] [blame] | 69 | virtual void VisitBlockedOnObject(ObjPtr<mirror::Object> obj, |
| 70 | ThreadState state, |
| 71 | uint32_t owner_tid) |
Andreas Gampe | 9310495 | 2017-12-13 17:13:15 -0800 | [diff] [blame] | 72 | REQUIRES_SHARED(Locks::mutator_lock_) = 0; |
Vladimir Marko | f52d92f | 2019-03-29 12:33:02 +0000 | [diff] [blame] | 73 | virtual void VisitLockedObject(ObjPtr<mirror::Object> obj) |
Andreas Gampe | 9310495 | 2017-12-13 17:13:15 -0800 | [diff] [blame] | 74 | REQUIRES_SHARED(Locks::mutator_lock_) = 0; |
| 75 | |
| 76 | size_t frame_count; |
| 77 | |
| 78 | private: |
Vladimir Marko | f52d92f | 2019-03-29 12:33:02 +0000 | [diff] [blame] | 79 | static void VisitLockedObject(ObjPtr<mirror::Object> o, void* context) |
| 80 | REQUIRES_SHARED(Locks::mutator_lock_); |
Andreas Gampe | 9310495 | 2017-12-13 17:13:15 -0800 | [diff] [blame] | 81 | |
| 82 | const bool dump_locks; |
| 83 | }; |
| 84 | |
| 85 | } // namespace art |
| 86 | |
| 87 | #endif // ART_RUNTIME_MONITOR_OBJECTS_STACK_VISITOR_H_ |