refactor(registry): 使用ErrorCode类型替换int作为错误返回值

- 将registry_service.h/c中的函数返回值从int改为ErrorCode枚举
- 更新callbacks.c中的错误检查逻辑，使用ERR_OK常量进行比较
- 在内部辅助函数中返回具体的错误码（ERR_REGISTRY_FAILED等）
- 提高代码类型安全性和错误处理可读性

include/core/registry_service.h

@@ -2,13 +2,14 @@
 #define REGISTRY_SERVICE_H
 
 #include "utils/string_ext.h"
+#include "utils/error_code.h"
 
 // 加载系统变量和用户变量到字符串列表
-int load_system_paths(StringList *list);
-int load_user_paths(StringList *list);
+ErrorCode load_system_paths(StringList *list);
+ErrorCode load_user_paths(StringList *list);
 
 // 从字符串列表保存系统变量和用户变量
-int save_system_paths(const StringList *list);
-int save_user_paths(const StringList *list);
+ErrorCode save_system_paths(const StringList *list);
+ErrorCode save_user_paths(const StringList *list);
 
 #endif // REGISTRY_SERVICE_H

src/controller/callbacks.c

@@ -6,6 +6,7 @@
 #include "core/import_export.h"
 #include "utils/string_ext.h"
 #include "utils/os_env.h"
+#include "utils/error_code.h"
 #include "ui/ui_utils.h"
 #include "ui/dialogs.h"
 #include <string.h>
@@ -323,23 +324,23 @@ int btn_ok_cb(Ihandle *self)
 
     backup_registry();
 
-    int sys_ok = save_system_paths(&ctx->sys_paths);
-    int user_ok = save_user_paths(&ctx->user_paths);
+    ErrorCode sys_ok = save_system_paths(&ctx->sys_paths);
+    ErrorCode user_ok = save_user_paths(&ctx->user_paths);
 
     Ihandle *lbl_status = IupGetDialogChild(dlg, "LBL_STATUS");
 
-    if (sys_ok && user_ok)
+    if (sys_ok == ERR_OK && user_ok == ERR_OK)
     {
         SendMessageTimeoutW(HWND_BROADCAST, WM_SETTINGCHANGE, 0, (LPARAM)L"Environment", SMTO_ABORTIFHUNG, 5000, NULL);
         IupMessage("成功", "系统和用户 PATH 环境变量均已更新！");
         if (lbl_status)
             IupSetAttribute(lbl_status, "TITLE", lua_config_get_string("status", "saved"));
     }
-    else if (sys_ok)
+    else if (sys_ok == ERR_OK)
     {
         IupMessage("提示", "系统变量保存成功，但用户变量保存失败。");
     }
-    else if (user_ok)
+    else if (user_ok == ERR_OK)
     {
         IupMessage("提示", "用户变量保存成功，但系统变量保存失败。");
     }
@@ -526,7 +527,7 @@ void load_all_paths(void)
     if (!ctx)
         return;
 
-    if (!load_system_paths(&ctx->sys_paths))
+    if (load_system_paths(&ctx->sys_paths) != ERR_OK)
     {
         IupMessage("错误", "无法打开系统环境变量注册表键，请尝试以管理员身份运行。");
     }

src/core/registry_service.c

@@ -1,5 +1,6 @@
 #include "core/registry_service.h"
 #include "utils/string_ext.h"
+#include "utils/error_code.h"
 #include <windows.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -9,7 +10,7 @@
 #define REG_VALUE L"Path"
 
 // 内部辅助函数：加载单个列表
-static int load_single_path(HKEY hKeyRoot, const wchar_t *regPath, StringList *list)
+static ErrorCode load_single_path(HKEY hKeyRoot, const wchar_t *regPath, StringList *list)
 {
     clear_string_list(list);
 
@@ -17,7 +18,7 @@ static int load_single_path(HKEY hKeyRoot, const wchar_t *regPath, StringList *l
     LONG res = RegOpenKeyExW(hKeyRoot, regPath, 0, KEY_READ, &hKey);
     if (res != ERROR_SUCCESS)
     {
-        return 0; // 失败
+        return ERR_REGISTRY_FAILED;
     }
 
     DWORD type, size;
@@ -59,25 +60,26 @@ static int load_single_path(HKEY hKeyRoot, const wchar_t *regPath, StringList *l
         }
     }
     RegCloseKey(hKey);
-    return 1; // 成功
+    return ERR_OK;
 }
 
 // 加载系统环境变量路径
-int load_system_paths(StringList *list)
+ErrorCode load_system_paths(StringList *list)
 {
     return load_single_path(HKEY_LOCAL_MACHINE, REG_PATH_SYS, list);
 }
 
 // 加载用户环境变量路径
-int load_user_paths(StringList *list)
+ErrorCode load_user_paths(StringList *list)
 {
     return load_single_path(HKEY_CURRENT_USER, REG_PATH_USER, list);
 }
 
 // 内部辅助函数：保存单个列表
-static int save_single_path(HKEY hKeyRoot, const wchar_t *regPath, const StringList *list)
+static ErrorCode save_single_path(HKEY hKeyRoot, const wchar_t *regPath, const StringList *list)
 {
-    if (!list) return 0;
+    if (!list)
+        return ERR_NULL_PTR;
 
     // 计算大小
     size_t total_len = 0;
@@ -97,7 +99,7 @@ static int save_single_path(HKEY hKeyRoot, const wchar_t *regPath, const StringL
 
     wchar_t *buffer = (wchar_t *)malloc(total_len * sizeof(wchar_t));
     if (!buffer)
-        return 0;
+        return ERR_OUT_OF_MEMORY;
 
     buffer[0] = L'\0';
     for (int i = 0; i < list->count; i++)
@@ -116,29 +118,29 @@ static int save_single_path(HKEY hKeyRoot, const wchar_t *regPath, const StringL
     }
 
     HKEY hKey;
-    int success = 0;
+    ErrorCode result = ERR_PERMISSION_DENIED;
     if (RegOpenKeyExW(hKeyRoot, regPath, 0, KEY_WRITE, &hKey) == ERROR_SUCCESS)
     {
         DWORD size = (DWORD)((wcslen(buffer) + 1) * sizeof(wchar_t));
         if (RegSetValueExW(hKey, REG_VALUE, 0, REG_EXPAND_SZ, (LPBYTE)buffer, size) == ERROR_SUCCESS)
         {
-            success = 1;
+            result = ERR_OK;
         }
         RegCloseKey(hKey);
     }
 
     free(buffer);
-    return success;
+    return result;
 }
 
 // 保存系统环境变量路径
-int save_system_paths(const StringList *list)
+ErrorCode save_system_paths(const StringList *list)
 {
     return save_single_path(HKEY_LOCAL_MACHINE, REG_PATH_SYS, list);
 }
 
 // 保存用户环境变量路径
-int save_user_paths(const StringList *list)
+ErrorCode save_user_paths(const StringList *list)
 {
     return save_single_path(HKEY_CURRENT_USER, REG_PATH_USER, list);
 }