Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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_GC_SPACE_ROSALLOC_SPACE_H_ |
| 18 | #define ART_RUNTIME_GC_SPACE_ROSALLOC_SPACE_H_ |
| 19 | |
| 20 | #include "gc/allocator/rosalloc.h" |
| 21 | #include "malloc_space.h" |
| 22 | #include "space.h" |
| 23 | |
| 24 | namespace art { |
| 25 | namespace gc { |
| 26 | |
| 27 | namespace collector { |
| 28 | class MarkSweep; |
| 29 | } // namespace collector |
| 30 | |
| 31 | namespace space { |
| 32 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 33 | // An alloc space implemented using a runs-of-slots memory allocator. Not final as may be |
| 34 | // overridden by a ValgrindMallocSpace. |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 35 | class RosAllocSpace : public MallocSpace { |
| 36 | public: |
| 37 | // Create a RosAllocSpace with the requested sizes. The requested |
| 38 | // base address is not guaranteed to be granted, if it is required, |
| 39 | // the caller should call Begin on the returned space to confirm the |
| 40 | // request was granted. |
| 41 | static RosAllocSpace* Create(const std::string& name, size_t initial_size, size_t growth_limit, |
Hiroshi Yamauchi | 573f7d2 | 2013-12-17 11:54:23 -0800 | [diff] [blame] | 42 | size_t capacity, byte* requested_begin, bool low_memory_mode); |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 43 | static RosAllocSpace* CreateFromMemMap(MemMap* mem_map, const std::string& name, |
| 44 | size_t starting_size, size_t initial_size, |
| 45 | size_t growth_limit, size_t capacity, |
| 46 | bool low_memory_mode); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 47 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 48 | mirror::Object* AllocWithGrowth(Thread* self, size_t num_bytes, size_t* bytes_allocated, |
| 49 | size_t* usable_size) OVERRIDE LOCKS_EXCLUDED(lock_); |
| 50 | mirror::Object* Alloc(Thread* self, size_t num_bytes, size_t* bytes_allocated, |
| 51 | size_t* usable_size) OVERRIDE { |
| 52 | return AllocNonvirtual(self, num_bytes, bytes_allocated, usable_size); |
| 53 | } |
| 54 | size_t AllocationSize(mirror::Object* obj, size_t* usable_size) OVERRIDE { |
| 55 | return AllocationSizeNonvirtual(obj, usable_size); |
| 56 | } |
| 57 | size_t Free(Thread* self, mirror::Object* ptr) OVERRIDE |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 58 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 59 | size_t FreeList(Thread* self, size_t num_ptrs, mirror::Object** ptrs) OVERRIDE |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 60 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 61 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 62 | mirror::Object* AllocNonvirtual(Thread* self, size_t num_bytes, size_t* bytes_allocated, |
| 63 | size_t* usable_size) { |
| 64 | // RosAlloc zeroes memory internally. |
| 65 | return AllocCommon(self, num_bytes, bytes_allocated, usable_size); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 66 | } |
| 67 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 68 | // TODO: NO_THREAD_SAFETY_ANALYSIS because SizeOf() requires that mutator_lock is held. |
| 69 | size_t AllocationSizeNonvirtual(mirror::Object* obj, size_t* usable_size) |
| 70 | NO_THREAD_SAFETY_ANALYSIS; |
| 71 | |
| 72 | allocator::RosAlloc* GetRosAlloc() const { |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 73 | return rosalloc_; |
| 74 | } |
| 75 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 76 | size_t Trim() OVERRIDE; |
| 77 | void Walk(WalkCallback callback, void* arg) OVERRIDE LOCKS_EXCLUDED(lock_); |
| 78 | size_t GetFootprint() OVERRIDE; |
| 79 | size_t GetFootprintLimit() OVERRIDE; |
| 80 | void SetFootprintLimit(size_t limit) OVERRIDE; |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 81 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 82 | void Clear() OVERRIDE; |
Mathieu Chartier | 15d3402 | 2014-02-26 17:16:38 -0800 | [diff] [blame] | 83 | void Reset() OVERRIDE; |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 84 | MallocSpace* CreateInstance(const std::string& name, MemMap* mem_map, void* allocator, |
| 85 | byte* begin, byte* end, byte* limit, size_t growth_limit); |
| 86 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 87 | uint64_t GetBytesAllocated() OVERRIDE; |
| 88 | uint64_t GetObjectsAllocated() OVERRIDE; |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 89 | |
| 90 | void RevokeThreadLocalBuffers(Thread* thread); |
| 91 | void RevokeAllThreadLocalBuffers(); |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 92 | void AssertAllThreadLocalBuffersAreRevoked(); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 93 | |
| 94 | // Returns the class of a recently freed object. |
| 95 | mirror::Class* FindRecentFreedObject(const mirror::Object* obj); |
| 96 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 97 | bool IsRosAllocSpace() const OVERRIDE { |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 98 | return true; |
| 99 | } |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 100 | |
| 101 | RosAllocSpace* AsRosAllocSpace() OVERRIDE { |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 102 | return this; |
| 103 | } |
| 104 | |
Hiroshi Yamauchi | a4adbfd | 2014-02-04 18:12:17 -0800 | [diff] [blame] | 105 | void Verify() EXCLUSIVE_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 106 | rosalloc_->Verify(); |
| 107 | } |
| 108 | |
Mathieu Chartier | 661974a | 2014-01-09 11:23:53 -0800 | [diff] [blame] | 109 | virtual ~RosAllocSpace(); |
| 110 | |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 111 | protected: |
| 112 | RosAllocSpace(const std::string& name, MemMap* mem_map, allocator::RosAlloc* rosalloc, |
| 113 | byte* begin, byte* end, byte* limit, size_t growth_limit); |
| 114 | |
| 115 | private: |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 116 | mirror::Object* AllocCommon(Thread* self, size_t num_bytes, size_t* bytes_allocated, |
| 117 | size_t* usable_size); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 118 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 119 | void* CreateAllocator(void* base, size_t morecore_start, size_t initial_size, |
Hiroshi Yamauchi | 26d69ff | 2014-02-27 11:27:10 -0800 | [diff] [blame] | 120 | size_t maximum_size, bool low_memory_mode) OVERRIDE { |
| 121 | return CreateRosAlloc(base, morecore_start, initial_size, maximum_size, low_memory_mode); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 122 | } |
Hiroshi Yamauchi | 573f7d2 | 2013-12-17 11:54:23 -0800 | [diff] [blame] | 123 | static allocator::RosAlloc* CreateRosAlloc(void* base, size_t morecore_start, size_t initial_size, |
Hiroshi Yamauchi | 26d69ff | 2014-02-27 11:27:10 -0800 | [diff] [blame] | 124 | size_t maximum_size, bool low_memory_mode); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 125 | |
| 126 | void InspectAllRosAlloc(void (*callback)(void *start, void *end, size_t num_bytes, void* callback_arg), |
| 127 | void* arg) |
| 128 | LOCKS_EXCLUDED(Locks::runtime_shutdown_lock_, Locks::thread_list_lock_); |
| 129 | |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 130 | // Underlying rosalloc. |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 131 | allocator::RosAlloc* const rosalloc_; |
Hiroshi Yamauchi | 4ce1f00 | 2013-11-18 14:49:09 -0800 | [diff] [blame] | 132 | |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 133 | friend class collector::MarkSweep; |
| 134 | |
| 135 | DISALLOW_COPY_AND_ASSIGN(RosAllocSpace); |
| 136 | }; |
| 137 | |
| 138 | } // namespace space |
| 139 | } // namespace gc |
| 140 | } // namespace art |
| 141 | |
| 142 | #endif // ART_RUNTIME_GC_SPACE_ROSALLOC_SPACE_H_ |