| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| #include "singa/core/common.h" |
| |
| #include "singa/core/device.h" |
| |
| namespace singa { |
| |
| void* Block::mutable_data() { |
| if (data_ == nullptr && size_ > 0) { |
| data_ = device_->Malloc((int)size_); |
| } |
| initialized_ = true; |
| return static_cast<char*>(data_) + offset_; |
| } |
| |
| const void* Block::data() const { |
| CHECK(initialized_) << "Must initialize data before reading it"; |
| return static_cast<char*>(data_) + offset_; |
| } |
| |
| void Block::free_data() { |
| if (data_) { |
| device_->Free(data_); |
| data_ = nullptr; |
| initialized_ = false; |
| } |
| } |
| |
| } // namespace singa |