1 /* 2 * Copyright (C) 2007 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 ANDROID_MEMORY_DEALER_H 18 #define ANDROID_MEMORY_DEALER_H 19 20 21 #include <stdint.h> 22 #include <sys/types.h> 23 24 #include <binder/IMemory.h> 25 #include <binder/MemoryHeapBase.h> 26 27 namespace android { 28 // ---------------------------------------------------------------------------- 29 30 class SimpleBestFitAllocator; 31 32 // ---------------------------------------------------------------------------- 33 34 class MemoryDealer : public RefBase 35 { 36 public: 37 MemoryDealer(size_t size, const char* name = 0, 38 uint32_t flags = 0 /* or bits such as MemoryHeapBase::READ_ONLY */ ); 39 40 virtual sp<IMemory> allocate(size_t size); 41 virtual void deallocate(size_t offset); 42 virtual void dump(const char* what) const; 43 44 // allocations are aligned to some value. return that value so clients can account for it. 45 static size_t getAllocationAlignment(); 46 47 sp<IMemoryHeap> getMemoryHeap() const { return heap(); } 48 49 protected: 50 virtual ~MemoryDealer(); 51 52 private: 53 const sp<IMemoryHeap>& heap() const; 54 SimpleBestFitAllocator* allocator() const; 55 56 sp<IMemoryHeap> mHeap; 57 SimpleBestFitAllocator* mAllocator; 58 }; 59 60 61 // ---------------------------------------------------------------------------- 62 }; // namespace android 63 64 #endif // ANDROID_MEMORY_DEALER_H 65
