On IOS After closing internet Connection Timeout does not work with uploading or downloading file to/from server.

[ghost]

Package

dio

Version

5.3.2

Output of flutter doctor -v

[✓] Flutter (Channel stable, 3.13.2, on macOS 13.5 22G74 darwin-x64, locale en-PK)
    • Flutter version 3.13.2 on channel stable at /Users/mac/development/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision ff5b5b5fa6 (12 days ago), 2023-08-24 08:12:28 -0500
    • Engine revision b20183e040
    • Dart version 3.1.0
    • DevTools version 2.25.0

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/mac/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b829.9-10027231)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 14.3.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 14E300c
    • CocoaPods version 1.12.1

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2022.3)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b829.9-10027231)

[✓] VS Code (version 1.81.1)
    • VS Code at /Users/mac/Downloads/Visual Studio Code.app/Contents
    • Flutter extension version 3.72.0

[✓] Connected device (3 available)
    • iPad (mobile)   • c484fc9175af0406e9a9afc9b14328a6ae72695e • ios            • iOS 15.7 19H12
    • macOS (desktop) • macos                                    • darwin-x64     • macOS 13.5 22G74 darwin-x64
    • Chrome (web)    • chrome                                   • web-javascript • Google Chrome 116.0.5845.140

[✓] Network resources
    • All expected network resources are available.

• No issues found!

Dart Version

3.1.0

Steps to Reproduce

//Uploading file to presigned url

try {
      final response = await dio.put(
        'url',
        data: File(file.filePath).openRead(),
        options: Options(
          contentType: file.mimeType,
          sendTimeout: Duration(seconds: 5),

          headers: {
            "Content-Length": File(file.filePath).lengthSync(),
          },
        ),
   
      );
     
    } catch (e) {
      if (kDebugMode) {
        print("error ${e.toString()}");
      }
      rethrow;
    }

//Downloading file from presigned url

final response = await dio.download(
      'download_url',
      'savedPath',
      options: Options(receiveTimeout: Duration(seconds: 5)),
    );

Expected Result

On IOS it must throws an error after 5 seconds if internet turns off.

Actual Result

it throws error after 5 seconds if uploading/downloading not completed in duration with the availability of internet.

[ENUUI]

The issue is also reproducible in version 4.0.6.

[AlexV525]

The flow is connect -> send/receive, so it should be connectTimeout here.