1 | /* |
2 | * Licensed to the Apache Software Foundation (ASF) under one |
3 | * or more contributor license agreements. See the NOTICE file |
4 | * distributed with this work for additional information |
5 | * regarding copyright ownership. The ASF licenses this file |
6 | * to you under the Apache License, Version 2.0 (the |
7 | * "License"); you may not use this file except in compliance |
8 | * with the License. You may obtain a copy of the License at |
9 | * |
10 | * http://www.apache.org/licenses/LICENSE-2.0 |
11 | * |
12 | * Unless required by applicable law or agreed to in writing, |
13 | * software distributed under the License is distributed on an |
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
15 | * KIND, either express or implied. See the License for the |
16 | * specific language governing permissions and limitations |
17 | * under the License. |
18 | */ |
19 | |
20 | /*! |
21 | * \file tvm/runtime/serializer.h |
22 | * \brief Serializer extension to support TVM data types |
23 | * Include this file to enable serialization of DLDataType, DLDevice |
24 | */ |
25 | #ifndef TVM_RUNTIME_SERIALIZER_H_ |
26 | #define TVM_RUNTIME_SERIALIZER_H_ |
27 | |
28 | #include <dmlc/io.h> |
29 | #include <dmlc/serializer.h> |
30 | #include <tvm/runtime/c_runtime_api.h> |
31 | #include <tvm/runtime/ndarray.h> |
32 | |
33 | namespace dmlc { |
34 | namespace serializer { |
35 | |
36 | template <> |
37 | struct Handler<DLDataType> { |
38 | inline static void Write(Stream* strm, const DLDataType& dtype) { |
39 | Handler<uint8_t>::Write(strm, dtype.code); |
40 | Handler<uint8_t>::Write(strm, dtype.bits); |
41 | Handler<uint16_t>::Write(strm, dtype.lanes); |
42 | } |
43 | inline static bool Read(Stream* strm, DLDataType* dtype) { |
44 | if (!Handler<uint8_t>::Read(strm, &(dtype->code))) return false; |
45 | if (!Handler<uint8_t>::Read(strm, &(dtype->bits))) return false; |
46 | if (!Handler<uint16_t>::Read(strm, &(dtype->lanes))) return false; |
47 | return true; |
48 | } |
49 | }; |
50 | |
51 | template <> |
52 | struct Handler<DLDevice> { |
53 | inline static void Write(Stream* strm, const DLDevice& dev) { |
54 | int32_t device_type = static_cast<int32_t>(dev.device_type); |
55 | Handler<int32_t>::Write(strm, device_type); |
56 | Handler<int32_t>::Write(strm, dev.device_id); |
57 | } |
58 | inline static bool Read(Stream* strm, DLDevice* dev) { |
59 | int32_t device_type = 0; |
60 | if (!Handler<int32_t>::Read(strm, &(device_type))) return false; |
61 | dev->device_type = static_cast<DLDeviceType>(device_type); |
62 | if (!Handler<int32_t>::Read(strm, &(dev->device_id))) return false; |
63 | return true; |
64 | } |
65 | }; |
66 | |
67 | } // namespace serializer |
68 | } // namespace dmlc |
69 | #endif // TVM_RUNTIME_SERIALIZER_H_ |
70 | |