std::string_view 的使用

module/Local_Server/Data_Source/Data_Source.h

@@ -1,4 +1,5 @@
 #pragma once
+#include <string_view>
 #include "Data_Source_Handler.h"
 namespace Psc {
 class SM_RingBuffer;
@@ -263,7 +264,7 @@ public:
     }
     asio::awaitable<void> _close() override;
     asio::awaitable<void> _open() override;
-    std::vector<std::string> readBinaryFileAsString(const std::string& filepath,
+    std::vector<std::string> readBinaryFileAsString(std::string_view filepath,
                                                     size_t part_size);
     void from_json(const Psc::JSON* that_json) override {
         Data_Source::from_json(that_json);
@@ -370,7 +371,7 @@ protected:
     std::unique_ptr<Psc::SM_RingBuffer> sm;
 };
 inline std::shared_ptr<Data_Source>
-create_data_source_from_type(const std::string& t) {
+create_data_source_from_type(std::string_view t) {
     std::shared_ptr<Data_Source> ret{};
     if (t == "Serial_Data_Source")
         ret = std::make_shared<Serial_Data_Source>();
@@ -384,7 +385,7 @@ create_data_source_from_type(const std::string& t) {
         ret = std::make_shared<Shared_Memory_Data_Source>();
     else {
         std::cout << "未知�?Data_Source type类型!" << std::endl;
-        throw std::invalid_argument("unknown Data_Source type: " + t);
+        throw std::invalid_argument("unknown Data_Source type: " + std::string(t));
     }
     return ret;
 }