modify return type of Model::Import from std::shared_ptr<Model> to Model

*

build.sh

@@ -397,7 +397,7 @@ checkndk() {
     if [ "${ANDROID_NDK}" ]; then
         echo -e "\e[31mANDROID_NDK_PATH=$ANDROID_NDK  \e[0m"
     else
-        echo -e "\e[31mplease set ANDROID_NDK_PATH in environment variable for example: export ANDROID_NDK=/root/usr/android-ndk-r20b/ \e[0m"
+        echo -e "\e[31mplease set ANDROID_NDK in environment variable for example: export ANDROID_NDK=/root/usr/android-ndk-r20b/ \e[0m"
         exit 1
     fi
 }

mindspore/lite/include/model.h

@@ -45,7 +45,7 @@ class MS_API Model {
   /// \param[in] size Define bytes numbers of model buffer.
   ///
   /// \return Pointer of MindSpore Lite Model.
-  static std::shared_ptr<Model> Import(const char *model_buf, size_t size);
+  static Model *Import(const char *model_buf, size_t size);
 
   /// \brief Constructor of MindSpore Lite Model using default value for parameters.
   ///
@@ -53,7 +53,7 @@ class MS_API Model {
   Model() = default;
 
   /// \brief Destructor of MindSpore Lite Model.
-  virtual ~Model() = default;
+  virtual ~Model();
 
   /// \brief Get MindSpore Lite Primitive by name.
   ///
@@ -70,13 +70,13 @@ class MS_API Model {
   /// \brief Get MindSpore Lite ModelImpl.
   ///
   /// \return A pointer of MindSpore Lite ModelImpl.
-  std::shared_ptr<ModelImpl> model_impl();
+  ModelImpl *model_impl();
 
   /// \brief Free MetaGraph in MindSpore Lite Model.
   void FreeMetaGraph();
 
  protected:
-  std::shared_ptr<ModelImpl> model_impl_ = nullptr;
+  ModelImpl *model_impl_ = nullptr;
 };
 
 /// \brief ModelBuilder defined by MindSpore Lite.

mindspore/lite/src/model.cc

@@ -24,12 +24,16 @@
 
 namespace mindspore::lite {
 
-std::shared_ptr<Model> Model::Import(const char *model_buf, size_t size) {
-  auto model = std::make_shared<Model>();
+Model *Model::Import(const char *model_buf, size_t size) {
+  auto model = new Model();
   model->model_impl_ = ModelImpl::Import(model_buf, size);
   return model;
 }
 
+Model::~Model() {
+  delete(this->model_impl_);
+}
+
 lite::Primitive *Model::GetOp(const std::string &name) const {
   MS_EXCEPTION_IF_NULL(model_impl_);
   return const_cast<Primitive *>(model_impl_->GetOp(name));
@@ -45,9 +49,8 @@ const schema::MetaGraph *Model::GetMetaGraph() const {
   return model_impl_->GetMetaGraph();
 }
 
-std::shared_ptr<ModelImpl> Model::model_impl() {
+ModelImpl *Model::model_impl() {
   MS_EXCEPTION_IF_NULL(model_impl_);
   return this->model_impl_;
 }
 }  // namespace mindspore::lite
-

mindspore/lite/src/model_impl.cc

@@ -20,7 +20,7 @@
 #include "utils/log_adapter.h"
 
 namespace mindspore::lite {
-std::shared_ptr<ModelImpl> ModelImpl::Import(const char *model_buf, size_t size) {
+ModelImpl *ModelImpl::Import(const char *model_buf, size_t size) {
   MS_EXCEPTION_IF_NULL(model_buf);
   flatbuffers::Verifier verify((const uint8_t *)model_buf, size);
   if (!schema::VerifyMetaGraphBuffer(verify)) {
@@ -33,7 +33,7 @@ std::shared_ptr<ModelImpl> ModelImpl::Import(const char *model_buf, size_t size)
     return nullptr;
   }
   memcpy(inner_model_buf, model_buf, size);
-  auto model = std::make_shared<ModelImpl>(inner_model_buf, size);
+  auto model = new (std::nothrow) ModelImpl(inner_model_buf, size);
   if (model == nullptr) {
     MS_LOG(ERROR) << "Create modelImpl failed";
     return nullptr;

mindspore/lite/src/model_impl.h

@@ -27,7 +27,7 @@ namespace mindspore {
 namespace lite {
 class ModelImpl {
  public:
-  static std::shared_ptr<ModelImpl> Import(const char *model_buf, size_t size);
+  static ModelImpl *Import(const char *model_buf, size_t size);
   ModelImpl() = default;
   explicit ModelImpl(const char *model_buf, size_t size) : model_buf_(model_buf), buf_size_(size) {
     meta_graph = schema::GetMetaGraph(model_buf);

mindspore/lite/test/ut/src/infer_test.cc

@@ -109,7 +109,7 @@ TEST_F(InferTest, TestConvNode) {
   context->thread_num_ = 4;
   auto session = session::LiteSession::CreateSession(context);
   ASSERT_NE(nullptr, session);
-  auto ret = session->CompileGraph(model.get());
+  auto ret = session->CompileGraph(model);
   ASSERT_EQ(lite::RET_OK, ret);
   auto inputs = session->GetInputs();
   ASSERT_EQ(inputs.size(), 1);
@@ -206,7 +206,7 @@ TEST_F(InferTest, TestAddNode) {
   context->thread_num_ = 4;
   auto session = session::LiteSession::CreateSession(context);
   ASSERT_NE(nullptr, session);
-  auto ret = session->CompileGraph(model.get());
+  auto ret = session->CompileGraph(model);
   ASSERT_EQ(lite::RET_OK, ret);
   auto inputs = session->GetInputs();
   ASSERT_EQ(inputs.size(), 2);
@@ -257,7 +257,7 @@ TEST_F(InferTest, TestModel) {
   context->thread_num_ = 4;
   auto session = session::LiteSession::CreateSession(context);
   ASSERT_NE(nullptr, session);
-  auto ret = session->CompileGraph(model.get());
+  auto ret = session->CompileGraph(model);
   ASSERT_EQ(lite::RET_OK, ret);
   auto inputs = session->GetInputs();
   ASSERT_EQ(inputs.size(), 1);

mindspore/lite/tools/benchmark/benchmark.cc

@@ -398,10 +398,11 @@ int Benchmark::RunBenchmark(const std::string &deviceType) {
     MS_LOG(ERROR) << "CreateSession failed while running %s", modelName.c_str();
     return RET_ERROR;
   }
-  auto ret = session->CompileGraph(model.get());
+  auto ret = session->CompileGraph(model);
   if (ret != RET_OK) {
     MS_LOG(ERROR) << "CompileGraph failed while running %s", modelName.c_str();
     delete (session);
+    delete (model);
     return ret;
   }
   msInputs = session->GetInputs();
@@ -420,6 +421,7 @@ int Benchmark::RunBenchmark(const std::string &deviceType) {
   if (status != 0) {
     MS_LOG(ERROR) << "Generate input data error";
     delete (session);
+    delete (model);
     return status;
   }
   if (!_flags->calibDataPath.empty()) {
@@ -427,6 +429,7 @@ int Benchmark::RunBenchmark(const std::string &deviceType) {
     if (status != 0) {
       MS_LOG(ERROR) << "Run MarkAccuracy error: %d" << status;
       delete (session);
+      delete (model);
       return status;
     }
   } else {
@@ -434,6 +437,7 @@ int Benchmark::RunBenchmark(const std::string &deviceType) {
     if (status != 0) {
       MS_LOG(ERROR) << "Run MarkPerformance error: %d" << status;
       delete (session);
+      delete (model);
       return status;
     }
   }
@@ -448,6 +452,7 @@ int Benchmark::RunBenchmark(const std::string &deviceType) {
   }
 
   delete (session);
+  delete (model);
   return RET_OK;
 }
 

mindspore/lite/tools/converter/quantizer/post_training.cc

@@ -920,7 +920,7 @@ STATUS PostTrainingQuantizer::DoQuantize(FuncGraphPtr funcGraph) {
     return RET_ERROR;
   }
 
-  auto ret = session_->CompileGraph(model.get());
+  auto ret = session_->CompileGraph(model);
   if (ret != lite::RET_OK) {
     MS_LOG(ERROR) << "compile graph error";
     return RET_ERROR;

mindspore/lite/tools/time_profile/time_profile.cc

@@ -278,7 +278,7 @@ int TimeProfile::RunTimeProfile() {
   }
   auto model = lite::Model::Import(graphBuf, size);
 
-  auto ret = session_->CompileGraph(model.get());
+  auto ret = session_->CompileGraph(model);
   if (ret != RET_OK) {
     MS_LOG(ERROR) << "Compile graph failed.";
     return RET_ERROR;
@@ -336,6 +336,8 @@ int TimeProfile::RunTimeProfile() {
   }
   ms_inputs_.clear();
   delete graphBuf;
+  delete session_;
+  delete model;
   return ret;
 }