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Add update source lock

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This commit is contained in:
Jack251970 2025-05-06 14:13:14 +08:00
parent 639a5aebe5
commit 265fd9c868
1 changed files with 20 additions and 7 deletions
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27
Flow.Launcher/ViewModel/MainViewModel.cs
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@ -47,6 +47,7 @@ namespace Flow.Launcher.ViewModel
private CancellationTokenSource _updateSource; // Used to cancel old query flows
private CancellationToken _updateToken; // Used to avoid ObjectDisposedException of _updateSource.Token
private readonly object _updateSourceLock = new();
private ChannelWriter<ResultsForUpdate> _resultsUpdateChannelWriter;
private Task _resultsViewUpdateTask;
@ -69,8 +70,11 @@ namespace Flow.Launcher.ViewModel
_queryText = "";
_lastQuery = new Query();
_ignoredQueryText = null; // null as invalid value
_updateSource = new CancellationTokenSource();
_updateToken = _updateSource.Token;
lock (_updateSourceLock)
{
_updateSource = new CancellationTokenSource();
_updateToken = _updateSource.Token;
}
Settings = Ioc.Default.GetRequiredService<Settings>();
Settings.PropertyChanged += (_, args) =>
@ -1240,7 +1244,10 @@ namespace Flow.Launcher.ViewModel
private async Task QueryResultsAsync(bool searchDelay, bool isReQuery = false, bool reSelect = true)
{
_updateSource?.Cancel();
lock (_updateSourceLock)
{
_updateSource.Cancel();
}
App.API.LogDebug(ClassName, $"Start query with text: <{QueryText}>");
@ -1268,9 +1275,12 @@ namespace Flow.Launcher.ViewModel
var isHomeQuery = query.RawQuery == string.Empty;
_updateSource?.Dispose(); // Dispose old update source to fix possible cancellation issue
_updateSource = new CancellationTokenSource();
_updateToken = _updateSource.Token;
lock (_updateSourceLock)
{
_updateSource.Dispose(); // Dispose old update source to fix possible cancellation issue
_updateSource = new CancellationTokenSource();
_updateToken = _updateSource.Token;
}
ProgressBarVisibility = Visibility.Hidden;
_isQueryRunning = true;
@ -1888,7 +1898,10 @@ namespace Flow.Launcher.ViewModel
{
if (disposing)
{
_updateSource?.Dispose();
lock (_updateSourceLock)
{
_updateSource?.Dispose();
}
_resultsUpdateChannelWriter?.Complete();
if (_resultsViewUpdateTask?.IsCompleted == true)
{