refactor system stop

support/include/utils/config.hpp

@@ -416,6 +416,7 @@ using data_buffer = std::vector<unsigned char>;
 using mutex_lock = std::lock_guard<std::mutex>;
 using recur_mutex_lock = std::lock_guard<std::recursive_mutex>;
 using stop_type = std::atomic_bool;
+using stop_type_callback = std::function<std::atomic_bool()>;
 using unique_mutex_lock = std::unique_lock<std::mutex>;
 using unique_recur_mutex_lock = std::unique_lock<std::recursive_mutex>;
 

support/include/utils/encrypting_reader.hpp

@@ -32,17 +32,19 @@ namespace repertory::utils::encryption {
 class encrypting_reader final {
 public:
   encrypting_reader(std::string_view file_name, std::string_view source_path,
-                    stop_type &stop_requested, std::string_view token,
+                    stop_type_callback stop_requested_cb,
+                    std::string_view token,
                     std::optional<std::string> relative_parent_path,
                     std::size_t error_return = 0U);
 
   encrypting_reader(std::string_view encrypted_file_path,
-                    std::string_view source_path, stop_type &stop_requested,
+                    std::string_view source_path,
+                    stop_type_callback stop_requested_cb,
                     std::string_view token, std::size_t error_return = 0U);
 
   encrypting_reader(
       std::string_view encrypted_file_path, std::string_view source_path,
-      stop_type &stop_requested, std::string_view token,
+      stop_type_callback stop_requested_cb, std::string_view token,
       std::vector<std::array<unsigned char,
                              crypto_aead_xchacha20poly1305_IETF_NPUBBYTES>>
           iv_list,
@@ -62,7 +64,7 @@ public:
 
 private:
   utils::encryption::hash_256_t key_;
-  stop_type &stop_requested_;
+  stop_type_callback stop_requested_cb_;
   size_t error_return_;
   std::unique_ptr<utils::file::i_file> source_file_;
 
@@ -126,7 +128,7 @@ public:
   }
 
   [[nodiscard]] auto get_stop_requested() const -> bool {
-    return stop_requested_;
+    return stop_requested_cb_();
   }
 
   [[nodiscard]] auto get_total_size() const -> std::uint64_t {