forked from huawei/mindspore2022
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/**
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* Copyright 2020-2021 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "tools/common/storage.h"
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#include <sys/stat.h>
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#ifndef _MSC_VER
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#include <unistd.h>
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#endif
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#include "flatbuffers/flatbuffers.h"
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#include "src/common/log_adapter.h"
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#include "src/common/file_utils.h"
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namespace mindspore {
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namespace lite {
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int Storage::Save(const schema::MetaGraphT &graph, const std::string &outputPath) {
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flatbuffers::FlatBufferBuilder builder(1024);
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auto offset = schema::MetaGraph::Pack(builder, &graph);
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builder.Finish(offset);
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schema::FinishMetaGraphBuffer(builder, offset);
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int size = builder.GetSize();
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auto content = builder.GetBufferPointer();
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if (content == nullptr) {
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MS_LOG(ERROR) << "GetBufferPointer nullptr";
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return RET_ERROR;
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}
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std::string filename = outputPath;
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if (filename.substr(filename.find_last_of(".") + 1) != "ms") {
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filename = filename + ".ms";
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}
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#ifndef _MSC_VER
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if (access(filename.c_str(), F_OK) == 0) {
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chmod(filename.c_str(), S_IWUSR);
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}
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#endif
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std::ofstream output(filename, std::ofstream::binary);
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if (!output.is_open()) {
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MS_LOG(ERROR) << "Can not open output file: " << filename;
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return RET_ERROR;
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}
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output.write((const char *)content, size);
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output.close();
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#ifndef _MSC_VER
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chmod(filename.c_str(), S_IRUSR);
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#endif
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return RET_OK;
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}
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schema::MetaGraphT *Storage::Load(const std::string &inputPath) {
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size_t size = 0;
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std::string filename = inputPath;
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if (filename.substr(filename.find_last_of(".") + 1) != "ms") {
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filename = filename + ".ms";
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}
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auto buf = ReadFile(filename.c_str(), &size);
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if (buf == nullptr) {
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MS_LOG(ERROR) << "the file buffer is nullptr";
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return nullptr;
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}
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flatbuffers::Verifier verify((const uint8_t *)buf, size);
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if (!schema::VerifyMetaGraphBuffer(verify)) {
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MS_LOG(ERROR) << "the buffer is invalid and fail to create meta graph";
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return nullptr;
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}
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auto graphDefT = schema::UnPackMetaGraph(buf);
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return graphDefT.release();
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}
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} // namespace lite
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} // namespace mindspore
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