1 /* 2 * Copyright (C) 2017 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 <unistd.h> 18 19 #include <hidlmemory/FrameworkUtils.h> 20 21 namespace android { 22 23 namespace hardware { 24 fromHeap(const sp<IMemoryHeap> & heap)25sp<HidlMemory> fromHeap(const sp<IMemoryHeap>& heap) { 26 int fd = dup(heap->getHeapID()); 27 28 if (fd < 0) { 29 return HidlMemory::getInstance(hidl_memory()); 30 } 31 32 // Only being used because this library is paired with the IAllocator 33 // ashmem. Other places should not make assumptions about the contents 34 // of this memory. 35 return HidlMemory::getInstance("ashmem", fd, heap->getSize()); 36 } 37 38 } // namespace hardware 39 } // namespace android 40