1 /* 2 * Copyright (C) 2016 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 #include <sys/mman.h> 18 19 #include "AshmemMemory.h" 20 21 namespace android { 22 namespace hidl { 23 namespace memory { 24 namespace V1_0 { 25 namespace implementation { 26 27 AshmemMemory::AshmemMemory(const hidl_memory& memory, void* data) 28 : mMemory(memory), 29 mData(data) 30 {} 31 32 AshmemMemory::~AshmemMemory() 33 { 34 // TODO: Move implementation to mapper class 35 munmap(mData, mMemory.size()); 36 } 37 38 // Methods from ::android::hidl::memory::V1_0::IMemory follow. 39 Return<void> AshmemMemory::update() { 40 // NOOP (since non-remoted memory) 41 return Void(); 42 } 43 44 Return<void> AshmemMemory::updateRange(uint64_t /* start */, uint64_t /* length */) { 45 // NOOP (since non-remoted memory) 46 return Void(); 47 } 48 49 Return<void> AshmemMemory::read() { 50 // NOOP (since non-remoted memory) 51 return Void(); 52 } 53 54 Return<void> AshmemMemory::readRange(uint64_t /* start */, uint64_t /* length */) { 55 // NOOP (since non-remoted memory) 56 return Void(); 57 } 58 59 Return<void> AshmemMemory::commit() { 60 // NOOP (since non-remoted memory) 61 return Void(); 62 } 63 64 Return<void*> AshmemMemory::getPointer() { 65 return mData; 66 } 67 68 Return<uint64_t> AshmemMemory::getSize() { 69 return mMemory.size(); 70 } 71 72 } // namespace implementation 73 } // namespace V1_0 74 } // namespace memory 75 } // namespace hidl 76 } // namespace android 77
