1 /** 2 * Copyright 2021 Huawei Technologies Co., Ltd 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 #ifndef MINDSPORE_LITE_TOOLS_COMMON_META_GRAPH_SERIALIZER_H_ 18 #define MINDSPORE_LITE_TOOLS_COMMON_META_GRAPH_SERIALIZER_H_ 19 20 #include <fstream> 21 #include <string> 22 #include "flatbuffers/flatbuffers.h" 23 #include "schema/inner/model_generated.h" 24 #include "utils/crypto.h" 25 26 namespace mindspore::lite { 27 class MetaGraphSerializer { 28 public: 29 // get metagraph packed buffer 30 static uint8_t *GetMetaGraphPackedBuff(flatbuffers::FlatBufferBuilder *builder, const schema::MetaGraphT &graph, 31 size_t *data_size); 32 33 // save serialized fb model 34 static int Save(const schema::MetaGraphT &graph, const std::string &output_path, const Byte *key = {}, 35 const size_t key_len = 0, const std::string &enc_mode = ""); 36 static int Save(const schema::MetaGraphT &graph, const std::string &output_path, size_t *size, const Byte *key = {}, 37 const size_t key_len = 0, const std::string &enc_mode = ""); 38 39 private: 40 MetaGraphSerializer() = default; 41 42 virtual ~MetaGraphSerializer(); 43 44 bool InitPath(const std::string &real_output_path); 45 46 bool Init(const schema::MetaGraphT &graph, bool save_together = true); 47 48 schema::ExternalDataT *AddExternalData(const char *data, size_t size); 49 50 bool ExtraAndSerializeModelWeight(const schema::MetaGraphT &graph); 51 52 bool SerializeModelAndUpdateWeight(const schema::MetaGraphT &meta_graphT, const Byte *key, const size_t key_len, 53 const std::string &enc_mode, size_t *size = 0); 54 55 bool SerializeModel(const void *content, size_t size, const Byte *key, const size_t key_len, 56 const std::string &enc_mode); 57 58 int64_t cur_offset_ = 0; 59 std::string save_path_; 60 std::string model_name_; 61 std::string save_model_path_; 62 std::string save_data_path_; 63 std::fstream *model_fs_ = nullptr; 64 std::fstream *data_fs_ = nullptr; 65 }; 66 } // namespace mindspore::lite 67 68 #endif // MINDSPORE_LITE_TOOLS_COMMON_META_GRAPH_SERIALIZER_H_ 69