| /* |
| * Copyright (C) 2007 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 ANDROID_MEMORY_DEALER_H |
| #define ANDROID_MEMORY_DEALER_H |
| |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <binder/IMemory.h> |
| #include <binder/MemoryHeapBase.h> |
| |
| namespace android { |
| // ---------------------------------------------------------------------------- |
| |
| class SimpleBestFitAllocator; |
| |
| // ---------------------------------------------------------------------------- |
| |
| class MemoryDealer : public RefBase |
| { |
| public: |
| explicit MemoryDealer(size_t size, const char* name = nullptr, |
| uint32_t flags = 0 /* or bits such as MemoryHeapBase::READ_ONLY */ ); |
| |
| virtual sp<IMemory> allocate(size_t size); |
| virtual void deallocate(size_t offset); |
| virtual void dump(const char* what) const; |
| |
| // allocations are aligned to some value. return that value so clients can account for it. |
| static size_t getAllocationAlignment(); |
| |
| sp<IMemoryHeap> getMemoryHeap() const { return heap(); } |
| |
| protected: |
| virtual ~MemoryDealer(); |
| |
| private: |
| const sp<IMemoryHeap>& heap() const; |
| SimpleBestFitAllocator* allocator() const; |
| |
| sp<IMemoryHeap> mHeap; |
| SimpleBestFitAllocator* mAllocator; |
| }; |
| |
| |
| // ---------------------------------------------------------------------------- |
| }; // namespace android |
| |
| #endif // ANDROID_MEMORY_DEALER_H |