update for style. test=develop

lite/api/cxx_api.h

@@ -162,10 +162,10 @@ class LITE_API Predictor {
 // #endif
 
 #ifdef LITE_WITH_CUDA
-  void SetMultiStream(bool multi_stream) { multi_stream_ = multi_stream; }
+  void set_multi_stream(bool multi_stream) { multi_stream_ = multi_stream; }
   bool multi_stream() { return multi_stream_; }
-  void SetExecStream(cudaStream_t* stream) { exec_stream_ = stream; }
-  void SetIoStream(cudaStream_t* stream) { io_stream_ = stream; }
+  void set_exec_stream(cudaStream_t* stream) { exec_stream_ = stream; }
+  void set_io_stream(cudaStream_t* stream) { io_stream_ = stream; }
   const cudaStream_t& exec_stream() { return *exec_stream_; }
   const cudaStream_t& io_stream() { return *io_stream_; }
 #endif
@@ -182,8 +182,8 @@ class LITE_API Predictor {
   std::vector<Place> valid_places_;
 #ifdef LITE_WITH_CUDA
   bool multi_stream_{false};
-  cudaStream_t* io_stream_;
-  cudaStream_t* exec_stream_;
+  cudaStream_t* io_stream_{nullptr};
+  cudaStream_t* exec_stream_{nullptr};
 #endif
 };
 

lite/api/cxx_api_impl.cc

@@ -105,13 +105,13 @@ void CxxPaddleApiImpl::CudaEnvInit(std::vector<std::string> *passes) {
     TargetWrapperCuda::CreateStream(io_stream_);
   }
 
-  raw_predictor_->SetExecStream(exec_stream_);
-  raw_predictor_->SetIoStream(io_stream_);
+  raw_predictor_->set_exec_stream(exec_stream_);
+  raw_predictor_->set_io_stream(io_stream_);
 
   // init sync events.
   if (config_.multi_stream()) {
     multi_stream_ = true;
-    raw_predictor_->SetMultiStream(multi_stream_);
+    raw_predictor_->set_multi_stream(multi_stream_);
     passes->push_back("multi_stream_analysis_pass");
     VLOG(3) << "add pass: " << (*passes)[0];
     Env<TargetType::kCUDA>::Devs &devs = Env<TargetType::kCUDA>::Global();