From f23114704d0a6135962b72ccb88b55425c48b5b0 Mon Sep 17 00:00:00 2001
From: kthui <18255193+kthui@users.noreply.github.com>
Date: Fri, 24 Jan 2025 11:46:12 -0800
Subject: [PATCH] Mark response parameters accessor const and JSON serializable

---
 src/infer_response.cc | 4 ++--
 src/infer_response.h  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/infer_response.cc b/src/infer_response.cc
index b02cdfd5..56f2bbbc 100644
--- a/src/infer_response.cc
+++ b/src/infer_response.cc
@@ -60,8 +60,8 @@ InferResponse::OutputTensors()
   return output_tensors_;
 }
 
-std::string&
-InferResponse::Parameters()
+const std::string&
+InferResponse::Parameters() const
 {
   return parameters_;
 }
diff --git a/src/infer_response.h b/src/infer_response.h
index 1af69b20..ab8eb68a 100644
--- a/src/infer_response.h
+++ b/src/infer_response.h
@@ -76,7 +76,7 @@ class InferResponse {
       std::shared_ptr<PbError> error = nullptr, std::string parameters = "",
       const bool is_last_response = true, void* id = nullptr);
   std::vector<std::shared_ptr<PbTensor>>& OutputTensors();
-  std::string& Parameters();
+  const std::string& Parameters() const;  // JSON serializable unless empty
   void SaveToSharedMemory(
       std::unique_ptr<SharedMemoryManager>& shm_pool, bool copy_gpu = true);
   static std::unique_ptr<InferResponse> LoadFromSharedMemory(