mikkeli
895b963745
Consolidating the UI's seed values onto TestConfiguration's own defaults also silently changed the default target to iperf.es.net, which was not asked for. Sets it back in TestConfiguration, which is now the single definition the screen and the headless entry point both read. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
106 lines
3.9 KiB
Dart
106 lines
3.9 KiB
Dart
// Headless entry point: runs one iperf3 test with no widgets.
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//
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// This exists to keep the core honest. If anything in the run path ever starts
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// depending on the UI, this stops compiling or stops working — a claim about
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// separation that is checked rather than asserted.
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//
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// It is also the low-noise way to measure. The UI competes with the test for
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// CPU (a gigabit run can put the phone near CPU-bound), so figures taken here
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// are cleaner than figures taken with a transcript repainting alongside.
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//
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// flutter run -t lib/main_headless.dart \
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// --dart-define=IPERF_SERVER=192.168.2.182 \
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// --dart-define=IPERF_STREAMS=4
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//
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// Nothing below imports lib/ui, and test/architecture_test.dart enforces that.
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import 'package:flutter/widgets.dart' show WidgetsFlutterBinding;
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import 'package:flutter/foundation.dart' show debugPrint;
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import 'package:iperf3gui/data/services/iperf3_service.dart';
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import 'package:iperf3gui/domain/models/iperf3_event.dart';
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import 'package:iperf3gui/domain/models/iperf3_session.dart';
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import 'package:iperf3gui/domain/models/test_configuration.dart';
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import 'package:iperf3gui/domain/services/iperf3_runner.dart';
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/// Test parameters, supplied at build time with --dart-define.
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const String _server = String.fromEnvironment('IPERF_SERVER',
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defaultValue: 'speedtest.uztelecom.uz');
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const int _port = int.fromEnvironment('IPERF_PORT', defaultValue: 5201);
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const int _seconds = int.fromEnvironment('IPERF_SECONDS', defaultValue: 10);
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const int _streams = int.fromEnvironment('IPERF_STREAMS', defaultValue: 1);
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Future<void> main() async {
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// Required for the MethodChannel. Notably NOT runApp() — there is no widget
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// tree, no render surface and no Flutter UI thread work in this process.
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WidgetsFlutterBinding.ensureInitialized();
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const config = TestConfiguration(
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server: _server,
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port: _port,
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duration: Duration(seconds: _seconds),
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parallelStreams: _streams,
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);
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final Iperf3Runner runner = Iperf3Service();
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final session = Iperf3Session();
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final subscription = runner.events.listen((event) {
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session.add(event);
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if (event is Iperf3Interval && !event.omitted) {
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_out('interval ${event.start.toStringAsFixed(2)}-'
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'${event.end.toStringAsFixed(2)}s '
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'${_mbits(event.bitsPerSecond)} Mbit/s'
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'${event.retransmits != null ? ' retr=${event.retransmits}' : ''}');
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} else if (event is Iperf3Error) {
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_out('error: ${event.message}');
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}
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});
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_out('running iperf3 -c ${config.server} -p ${config.port} '
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'-t ${config.duration.inSeconds} -P ${config.parallelStreams}');
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final result = await runner.run(config);
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await subscription.cancel();
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await runner.dispose();
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_report(result.exitCode, session);
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}
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void _report(int exitCode, Iperf3Session session) {
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_out('--- result ---');
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_out('exit code: $exitCode');
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_out('samples: ${session.sampleCount}');
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final mean = session.meanBitsPerSecond;
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final peak = session.peakBitsPerSecond;
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if (mean != null) _out('mean: ${_mbits(mean)} Mbit/s');
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if (peak != null) _out('peak: ${_mbits(peak)} Mbit/s');
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final retr = session.totalRetransmits;
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_out('retransmits: ${retr ?? 'not measured'}');
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final sent = session.summary?.sent;
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final received = session.summary?.received;
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if (sent != null) {
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_out('sent: ${_mbits(sent.bitsPerSecond)} Mbit/s '
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'over ${sent.seconds.toStringAsFixed(2)}s');
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}
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if (received != null) {
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_out('received: ${_mbits(received.bitsPerSecond)} Mbit/s '
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'over ${received.seconds.toStringAsFixed(2)}s');
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}
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final cpu = session.summary?.hostCpuPercent;
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if (cpu != null) _out('local cpu: ${cpu.toStringAsFixed(1)}%');
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if (session.stopped) _out('ended early: stopped');
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for (final error in session.errors) {
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_out('error: $error');
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}
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}
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String _mbits(double bitsPerSecond) =>
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(bitsPerSecond / 1e6).toStringAsFixed(1);
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void _out(String line) => debugPrint('[iperf3-headless] $line');
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