| /* |
| * Copyright (C) 2017 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. |
| */ |
| |
| #define LOG_TAG "Memory" |
| |
| #include "Memory.h" |
| |
| #include "HalInterfaces.h" |
| #include "Utils.h" |
| |
| namespace android { |
| namespace nn { |
| |
| int Memory::create(uint32_t size) { |
| mHidlMemory = allocateSharedMemory(size); |
| mMemory = mapMemory(mHidlMemory); |
| if (mMemory == nullptr) { |
| LOG(ERROR) << "Memory::create failed"; |
| return ANEURALNETWORKS_OP_FAILED; |
| } |
| return ANEURALNETWORKS_NO_ERROR; |
| } |
| |
| uint32_t MemoryTracker::add(const Memory* memory) { |
| // See if we already have this memory. If so, |
| // return its index. |
| auto i = mKnown.find(memory); |
| if (i != mKnown.end()) { |
| return i->second; |
| } |
| // It's a new one. Save it an assign an index to it. |
| size_t next = mKnown.size(); |
| if (next > 0xFFFFFFFF) { |
| LOG(ERROR) << "ANeuralNetworks more than 2^32 memories."; |
| return ANEURALNETWORKS_BAD_DATA; |
| } |
| uint32_t idx = static_cast<uint32_t>(next); |
| mKnown[memory] = idx; |
| mMemories.push_back(memory); |
| return idx; |
| } |
| |
| } // namespace nn |
| } // namespace android |