add GetExceptionMsg for paddle_inference_api. test=develop (#2231)

mobile/src/io/api_paddle_mobile.cc

@@ -111,10 +111,14 @@ bool PaddleMobilePredictor<Device, T>::Run(
     if (input.dtype == UINT8) {
       framework::Tensor input_tensor(static_cast<uint8_t *>(input.data.data()),
                                      ddim);
-      paddle_mobile_->Predict(input_tensor);
+      if (paddle_mobile_->Predict(input_tensor) != PMStatus::PMSuccess) {
+        return false;
+      }
     } else {
       framework::Tensor input_tensor(static_cast<T *>(input.data.data()), ddim);
-      paddle_mobile_->Predict(input_tensor);
+      if (paddle_mobile_->Predict(input_tensor) != PMStatus::PMSuccess) {
+        return false;
+      }
     }
   }
 
@@ -153,6 +157,11 @@ bool PaddleMobilePredictor<Device, T>::Run(
   return true;
 }
 
+template <typename Device, typename T>
+std::string PaddleMobilePredictor<Device, T>::GetExceptionMsg() {
+  return paddle_mobile_->GetExceptionMsg();
+}
+
 #ifdef PADDLE_MOBILE_FPGA
 void ConvertPaddleTensors(const PaddleTensor &src, framework::Tensor *des) {
   des->Resize(framework::make_ddim(src.shape));

mobile/src/io/api_paddle_mobile.h

@@ -32,6 +32,7 @@ class PaddleMobilePredictor : public PaddlePredictor {
   bool Run(const std::vector<PaddleTensor>& inputs,
            std::vector<PaddleTensor>* output_data,
            int batch_size = -1) override;
+  std::string GetExceptionMsg();
 #ifdef PADDLE_MOBILE_FPGA
   void Predict_From_To(int start, int end) override;
   void FeedPaddleTensors(const std::vector<PaddleTensor>& inputs) override;

mobile/src/io/paddle_inference_api.h

@@ -174,6 +174,7 @@ class PaddlePredictor {
   virtual bool Run(const std::vector<PaddleTensor>& inputs,
                    std::vector<PaddleTensor>* output_data,
                    int batch_size = -1) = 0;
+  virtual std::string GetExceptionMsg() { return ""; }
   // Destroy the Predictor.
   virtual ~PaddlePredictor() = default;
 

mobile/test/CMakeLists.txt

@@ -540,6 +540,12 @@ else()
     ADD_EXECUTABLE(test-net net/test_net.cpp test_helper.h test_include.h executor_for_test.h)
     target_link_libraries(test-net paddle-mobile)
 
+    ADD_EXECUTABLE(test-super net/test_super.cpp test_helper.h test_include.h executor_for_test.h)
+    target_link_libraries(test-super paddle-mobile)
+
     ADD_EXECUTABLE(test-inference-pre-post net/test_inference_pre_post.cpp)
     target_link_libraries(test-inference-pre-post paddle-mobile)
+
+    ADD_EXECUTABLE(test-inference-super net/test_inference_super.cpp)
+    target_link_libraries(test-inference-super paddle-mobile)
 endif()