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5ca7cf09e8
...
1a6346677e
@ -35,8 +35,6 @@
|
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</Style>
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</UserControl.Styles>
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<StackPanel>
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<TextBlock Text="{Binding FilterStatisticsText}" />
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<WrapPanel>
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<StackPanel>
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<CheckBox IsChecked="{Binding FilterByDate}">Filter by Date</CheckBox>
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@ -58,6 +56,5 @@
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<TextBlock Text="{Binding UserFilterLabel}" />
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</StackPanel>
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</WrapPanel>
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</StackPanel>
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</UserControl>
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@ -12,7 +12,6 @@ using DHT.Server.Data;
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using DHT.Server.Data.Filters;
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using DHT.Server.Database;
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using DHT.Utils.Models;
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using DHT.Utils.Tasks;
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namespace DHT.Desktop.Main.Controls {
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sealed class FilterPanelModel : BaseModel, IDisposable {
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@ -26,8 +25,6 @@ namespace DHT.Desktop.Main.Controls {
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nameof(IncludedUsers)
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};
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public string FilterStatisticsText { get; private set; } = "";
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public event PropertyChangedEventHandler? FilterPropertyChanged;
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public bool HasAnyFilters => FilterByDate || FilterByChannel || FilterByUser;
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@ -92,10 +89,6 @@ namespace DHT.Desktop.Main.Controls {
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private readonly Window window;
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private readonly IDatabaseFile db;
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private readonly AsyncValueComputer<long> exportedMessageCountComputer;
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private long? exportedMessageCount;
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private long? totalMessageCount;
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[Obsolete("Designer")]
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public FilterPanelModel() : this(null!, DummyDatabaseFile.Instance) {}
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@ -103,9 +96,6 @@ namespace DHT.Desktop.Main.Controls {
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this.window = window;
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this.db = db;
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this.exportedMessageCountComputer = AsyncValueComputer<long>.WithResultProcessor(SetExportedMessageCount).Build();
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UpdateFilterStatisticsText();
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UpdateChannelFilterLabel();
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UpdateUserFilterLabel();
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@ -119,7 +109,6 @@ namespace DHT.Desktop.Main.Controls {
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private void OnPropertyChanged(object? sender, PropertyChangedEventArgs e) {
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if (e.PropertyName != null && FilterProperties.Contains(e.PropertyName)) {
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UpdateFilterStatistics();
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FilterPropertyChanged?.Invoke(sender, e);
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}
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@ -132,11 +121,7 @@ namespace DHT.Desktop.Main.Controls {
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}
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private void OnDbStatisticsChanged(object? sender, PropertyChangedEventArgs e) {
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if (e.PropertyName == nameof(DatabaseStatistics.TotalMessages)) {
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totalMessageCount = db.Statistics.TotalMessages;
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UpdateFilterStatistics();
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}
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else if (e.PropertyName == nameof(DatabaseStatistics.TotalChannels)) {
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if (e.PropertyName == nameof(DatabaseStatistics.TotalChannels)) {
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UpdateChannelFilterLabel();
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}
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else if (e.PropertyName == nameof(DatabaseStatistics.TotalUsers)) {
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@ -144,32 +129,6 @@ namespace DHT.Desktop.Main.Controls {
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}
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}
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private void UpdateFilterStatistics() {
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var filter = CreateFilter();
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if (filter.IsEmpty) {
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exportedMessageCount = totalMessageCount;
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UpdateFilterStatisticsText();
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}
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else {
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exportedMessageCount = null;
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UpdateFilterStatisticsText();
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exportedMessageCountComputer.Compute(_ => db.CountMessages(filter));
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}
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}
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private void SetExportedMessageCount(long exportedMessageCount) {
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this.exportedMessageCount = exportedMessageCount;
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UpdateFilterStatisticsText();
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}
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private void UpdateFilterStatisticsText() {
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var exportedMessageCountStr = exportedMessageCount?.Format() ?? "(...)";
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var totalMessageCountStr = totalMessageCount?.Format() ?? "(...)";
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FilterStatisticsText = "Will export " + exportedMessageCountStr + " out of " + totalMessageCountStr + " message" + (totalMessageCount is null or > 0 ? "s." : ".");
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OnPropertyChanged(nameof(FilterStatisticsText));
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}
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public async void OpenChannelFilterDialog() {
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var servers = db.GetAllServers().ToDictionary(static server => server.Id);
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var items = new List<CheckBoxItem<ulong>>();
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@ -1,10 +1,8 @@
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using System;
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using System.Diagnostics.CodeAnalysis;
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using System.IO;
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using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Markup.Xaml;
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||||
using DHT.Desktop.Main.Pages;
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using JetBrains.Annotations;
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||||
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namespace DHT.Desktop.Main {
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@ -32,14 +30,6 @@ namespace DHT.Desktop.Main {
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if (DataContext is IDisposable disposable) {
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disposable.Dispose();
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}
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foreach (var temporaryFile in ViewerPageModel.TemporaryFiles) {
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try {
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File.Delete(temporaryFile);
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} catch (Exception) {
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// ignored
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}
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}
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||||
}
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||||
}
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}
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@ -5,7 +5,9 @@
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xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
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xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
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mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
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x:Class="DHT.Desktop.Main.Pages.ViewerPage">
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x:Class="DHT.Desktop.Main.Pages.ViewerPage"
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AttachedToVisualTree="OnAttachedToVisualTree"
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DetachedFromVisualTree="OnDetachedFromVisualTree">
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<Design.DataContext>
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<pages:ViewerPageModel />
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@ -22,7 +24,8 @@
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<Button Command="{Binding OnClickOpenViewer}" Margin="0 0 5 0">Open Viewer</Button>
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<Button Command="{Binding OnClickSaveViewer}" Margin="5 0 0 0">Save Viewer</Button>
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</StackPanel>
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<controls:FilterPanel DataContext="{Binding FilterModel}" Margin="0 20 0 0" />
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<TextBlock Text="{Binding ExportedMessageText}" Margin="0 20 0 0" />
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<controls:FilterPanel DataContext="{Binding FilterModel}" />
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<Expander Header="Database Tools">
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<StackPanel Orientation="Vertical" Spacing="10">
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<StackPanel Orientation="Vertical" Spacing="4">
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@ -1,4 +1,5 @@
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||||
using System.Diagnostics.CodeAnalysis;
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using Avalonia;
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||||
using Avalonia.Controls;
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||||
using Avalonia.Markup.Xaml;
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||||
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||||
@ -12,5 +13,17 @@ namespace DHT.Desktop.Main.Pages {
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||||
private void InitializeComponent() {
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AvaloniaXamlLoader.Load(this);
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}
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public void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e) {
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if (DataContext is ViewerPageModel model) {
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model.SetPageVisible(true);
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||||
}
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}
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||||
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||||
public void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e) {
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if (DataContext is ViewerPageModel model) {
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model.SetPageVisible(false);
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||||
}
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||||
}
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||||
}
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||||
}
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||||
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@ -1,10 +1,8 @@
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||||
using System;
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||||
using System.Collections.Concurrent;
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||||
using System.Collections.Generic;
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||||
using System.ComponentModel;
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||||
using System.Diagnostics;
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||||
using System.IO;
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||||
using System.Text;
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||||
using System.Threading.Tasks;
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||||
using System.Web;
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||||
using Avalonia.Controls;
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||||
@ -19,7 +17,7 @@ using static DHT.Desktop.Program;
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||||
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||||
namespace DHT.Desktop.Main.Pages {
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||||
sealed class ViewerPageModel : BaseModel, IDisposable {
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||||
public static readonly ConcurrentBag<string> TemporaryFiles = new ();
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public string ExportedMessageText { get; private set; } = "";
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||||
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public bool DatabaseToolFilterModeKeep { get; set; } = true;
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public bool DatabaseToolFilterModeRemove { get; set; } = false;
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||||
@ -36,6 +34,8 @@ namespace DHT.Desktop.Main.Pages {
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||||
private readonly Window window;
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||||
private readonly IDatabaseFile db;
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||||
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||||
private bool isPageVisible = false;
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||||
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||||
[Obsolete("Designer")]
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||||
public ViewerPageModel() : this(null!, DummyDatabaseFile.Instance) {}
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||||
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||||
@ -45,51 +45,49 @@ namespace DHT.Desktop.Main.Pages {
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||||
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||||
FilterModel = new FilterPanelModel(window, db);
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||||
FilterModel.FilterPropertyChanged += OnFilterPropertyChanged;
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db.Statistics.PropertyChanged += OnDbStatisticsChanged;
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}
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public void Dispose() {
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||||
db.Statistics.PropertyChanged -= OnDbStatisticsChanged;
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FilterModel.Dispose();
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||||
}
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||||
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||||
public void SetPageVisible(bool isPageVisible) {
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||||
this.isPageVisible = isPageVisible;
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||||
if (isPageVisible) {
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||||
UpdateStatistics();
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||||
}
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||||
}
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||||
|
||||
private void OnFilterPropertyChanged(object? sender, PropertyChangedEventArgs e) {
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||||
UpdateStatistics();
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||||
HasFilters = FilterModel.HasAnyFilters;
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||||
}
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||||
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||||
private async Task WriteViewerFile(string path) {
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||||
const string ArchiveTag = "/*[ARCHIVE]*/";
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||||
|
||||
string indexFile = await Resources.ReadTextAsync("Viewer/index.html");
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||||
string viewerTemplate = indexFile.Replace("/*[JS]*/", await Resources.ReadJoinedAsync("Viewer/scripts/", '\n'))
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.Replace("/*[CSS]*/", await Resources.ReadJoinedAsync("Viewer/styles/", '\n'));
|
||||
|
||||
int viewerArchiveTagStart = viewerTemplate.IndexOf(ArchiveTag);
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||||
int viewerArchiveTagEnd = viewerArchiveTagStart + ArchiveTag.Length;
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||||
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||||
string jsonTempFile = path + ".tmp";
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||||
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||||
await using (var jsonStream = new FileStream(jsonTempFile, FileMode.Create, FileAccess.ReadWrite, FileShare.Read)) {
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await ViewerJsonExport.Generate(jsonStream, db, FilterModel.CreateFilter());
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||||
char[] jsonBuffer = new char[Math.Min(32768, jsonStream.Position)];
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jsonStream.Position = 0;
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||||
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||||
await using (var outputStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read))
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||||
await using (var outputWriter = new StreamWriter(outputStream, Encoding.UTF8)) {
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||||
await outputWriter.WriteAsync(viewerTemplate[..viewerArchiveTagStart]);
|
||||
|
||||
using (var jsonReader = new StreamReader(jsonStream, Encoding.UTF8)) {
|
||||
int readBytes;
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||||
while ((readBytes = await jsonReader.ReadAsync(jsonBuffer, 0, jsonBuffer.Length)) > 0) {
|
||||
string jsonChunk = new string(jsonBuffer, 0, readBytes);
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||||
await outputWriter.WriteAsync(HttpUtility.JavaScriptStringEncode(jsonChunk));
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||||
private void OnDbStatisticsChanged(object? sender, PropertyChangedEventArgs e) {
|
||||
if (isPageVisible && e.PropertyName == nameof(DatabaseStatistics.TotalMessages)) {
|
||||
UpdateStatistics();
|
||||
}
|
||||
}
|
||||
|
||||
await outputWriter.WriteAsync(viewerTemplate[viewerArchiveTagEnd..]);
|
||||
}
|
||||
private void UpdateStatistics() {
|
||||
var filter = FilterModel.CreateFilter();
|
||||
var allMessagesCount = db.Statistics.TotalMessages?.Format() ?? "?";
|
||||
var filteredMessagesCount = filter.IsEmpty ? allMessagesCount : db.CountMessages(filter).Format();
|
||||
|
||||
ExportedMessageText = "Will export " + filteredMessagesCount + " out of " + allMessagesCount + " message(s).";
|
||||
OnPropertyChanged(nameof(ExportedMessageText));
|
||||
}
|
||||
|
||||
File.Delete(jsonTempFile);
|
||||
private async Task<string> GenerateViewerContents() {
|
||||
string json = ViewerJsonExport.Generate(db, FilterModel.CreateFilter());
|
||||
|
||||
string index = await Resources.ReadTextAsync("Viewer/index.html");
|
||||
string viewer = index.Replace("/*[JS]*/", await Resources.ReadJoinedAsync("Viewer/scripts/", '\n'))
|
||||
.Replace("/*[CSS]*/", await Resources.ReadJoinedAsync("Viewer/styles/", '\n'))
|
||||
.Replace("/*[ARCHIVE]*/", HttpUtility.JavaScriptStringEncode(json));
|
||||
return viewer;
|
||||
}
|
||||
|
||||
public async void OnClickOpenViewer() {
|
||||
@ -103,10 +101,8 @@ namespace DHT.Desktop.Main.Pages {
|
||||
fullPath = Path.Combine(rootPath, filenameBase + "-" + counter + ".html");
|
||||
}
|
||||
|
||||
TemporaryFiles.Add(fullPath);
|
||||
|
||||
Directory.CreateDirectory(rootPath);
|
||||
await WriteViewerFile(fullPath);
|
||||
await File.WriteAllTextAsync(fullPath, await GenerateViewerContents());
|
||||
|
||||
Process.Start(new ProcessStartInfo(fullPath) { UseShellExecute = true });
|
||||
}
|
||||
@ -114,7 +110,7 @@ namespace DHT.Desktop.Main.Pages {
|
||||
public async void OnClickSaveViewer() {
|
||||
var dialog = new SaveFileDialog {
|
||||
Title = "Save Viewer",
|
||||
InitialFileName = Path.GetFileNameWithoutExtension(db.Path) + ".html",
|
||||
InitialFileName = "archive.html",
|
||||
Directory = Path.GetDirectoryName(db.Path),
|
||||
Filters = new List<FileDialogFilter> {
|
||||
new() {
|
||||
@ -126,7 +122,7 @@ namespace DHT.Desktop.Main.Pages {
|
||||
|
||||
string? path = await dialog;
|
||||
if (!string.IsNullOrEmpty(path)) {
|
||||
await WriteViewerFile(path);
|
||||
await File.WriteAllTextAsync(path, await GenerateViewerContents());
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -1,8 +1,6 @@
|
||||
using System.Collections.Generic;
|
||||
using System.IO;
|
||||
using System.Linq;
|
||||
using System.Text.Json;
|
||||
using System.Threading.Tasks;
|
||||
using DHT.Server.Data;
|
||||
using DHT.Server.Data.Filters;
|
||||
using DHT.Utils.Logging;
|
||||
@ -11,7 +9,7 @@ namespace DHT.Server.Database.Export {
|
||||
public static class ViewerJsonExport {
|
||||
private static readonly Log Log = Log.ForType(typeof(ViewerJsonExport));
|
||||
|
||||
public static async Task Generate(Stream stream, IDatabaseFile db, MessageFilter? filter = null) {
|
||||
public static string Generate(IDatabaseFile db, MessageFilter? filter = null) {
|
||||
var perf = Log.Start();
|
||||
|
||||
var includedUserIds = new HashSet<ulong>();
|
||||
@ -39,20 +37,17 @@ namespace DHT.Server.Database.Export {
|
||||
|
||||
perf.Step("Collect database data");
|
||||
|
||||
var value = new {
|
||||
meta = new { users, userindex, servers, channels },
|
||||
data = GenerateMessageList(includedMessages, userIndices)
|
||||
};
|
||||
|
||||
perf.Step("Generate value object");
|
||||
|
||||
var opts = new JsonSerializerOptions();
|
||||
opts.Converters.Add(new ViewerJsonSnowflakeSerializer());
|
||||
|
||||
await JsonSerializer.SerializeAsync(stream, value, opts);
|
||||
var json = JsonSerializer.Serialize(new {
|
||||
meta = new { users, userindex, servers, channels },
|
||||
data = GenerateMessageList(includedMessages, userIndices)
|
||||
}, opts);
|
||||
|
||||
perf.Step("Serialize to JSON");
|
||||
perf.End();
|
||||
return json;
|
||||
}
|
||||
|
||||
private static object GenerateUserList(IDatabaseFile db, HashSet<ulong> userIds, out List<string> userindex, out Dictionary<ulong, object> userIndices) {
|
||||
@ -164,8 +159,8 @@ namespace DHT.Server.Database.Export {
|
||||
}
|
||||
|
||||
if (!message.Attachments.IsEmpty) {
|
||||
obj["a"] = message.Attachments.Select(static attachment => new Dictionary<string, object> {
|
||||
{ "url", attachment.Url }
|
||||
obj["a"] = message.Attachments.Select(static attachment => new {
|
||||
url = attachment.Url
|
||||
}).ToArray();
|
||||
}
|
||||
|
||||
|
||||
@ -2,14 +2,12 @@ using System;
|
||||
using System.Collections.Generic;
|
||||
using System.Collections.Immutable;
|
||||
using System.Text;
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
using DHT.Server.Data;
|
||||
using DHT.Server.Data.Filters;
|
||||
using DHT.Server.Database.Sqlite.Utils;
|
||||
using DHT.Utils.Collections;
|
||||
using DHT.Utils.Logging;
|
||||
using DHT.Utils.Tasks;
|
||||
using Microsoft.Data.Sqlite;
|
||||
|
||||
namespace DHT.Server.Database.Sqlite {
|
||||
@ -38,12 +36,12 @@ namespace DHT.Server.Database.Sqlite {
|
||||
|
||||
private readonly Log log;
|
||||
private readonly SqliteConnectionPool pool;
|
||||
private readonly AsyncValueComputer<long>.Single totalMessagesComputer;
|
||||
private readonly SqliteMessageStatisticsThread messageStatisticsThread;
|
||||
|
||||
private SqliteDatabaseFile(string path, SqliteConnectionPool pool) {
|
||||
this.log = Log.ForType(typeof(SqliteDatabaseFile), System.IO.Path.GetFileName(path));
|
||||
this.pool = pool;
|
||||
this.totalMessagesComputer = AsyncValueComputer<long>.WithResultProcessor(UpdateMessageStatistics).WithOutdatedResults().BuildWithComputer(ComputeMessageStatistics);
|
||||
this.messageStatisticsThread = new SqliteMessageStatisticsThread(pool, UpdateMessageStatistics);
|
||||
|
||||
this.Path = path;
|
||||
this.Statistics = new DatabaseStatistics();
|
||||
@ -54,10 +52,11 @@ namespace DHT.Server.Database.Sqlite {
|
||||
UpdateUserStatistics(conn);
|
||||
}
|
||||
|
||||
totalMessagesComputer.Recompute();
|
||||
messageStatisticsThread.RequestUpdate();
|
||||
}
|
||||
|
||||
public void Dispose() {
|
||||
messageStatisticsThread.Dispose();
|
||||
pool.Dispose();
|
||||
}
|
||||
|
||||
@ -194,7 +193,7 @@ namespace DHT.Server.Database.Sqlite {
|
||||
cmd.ExecuteNonQuery();
|
||||
}
|
||||
|
||||
using (var conn = pool.Take()) {
|
||||
using var conn = pool.Take();
|
||||
using var tx = conn.BeginTransaction();
|
||||
|
||||
using var messageCmd = conn.Upsert("messages", new[] {
|
||||
@ -306,9 +305,7 @@ namespace DHT.Server.Database.Sqlite {
|
||||
}
|
||||
|
||||
tx.Commit();
|
||||
}
|
||||
|
||||
totalMessagesComputer.Recompute();
|
||||
messageStatisticsThread.RequestUpdate();
|
||||
}
|
||||
|
||||
public int CountMessages(MessageFilter? filter = null) {
|
||||
@ -370,12 +367,11 @@ LEFT JOIN replied_to rt ON m.message_id = rt.message_id" + filter.GenerateWhereC
|
||||
.Append("FROM messages")
|
||||
.Append(whereClause);
|
||||
|
||||
using (var conn = pool.Take()) {
|
||||
using var conn = pool.Take();
|
||||
using var cmd = conn.Command(build.ToString());
|
||||
cmd.ExecuteNonQuery();
|
||||
}
|
||||
|
||||
totalMessagesComputer.Recompute();
|
||||
UpdateMessageStatistics(conn);
|
||||
perf.End();
|
||||
}
|
||||
|
||||
@ -458,13 +454,8 @@ LEFT JOIN replied_to rt ON m.message_id = rt.message_id" + filter.GenerateWhereC
|
||||
Statistics.TotalUsers = conn.SelectScalar("SELECT COUNT(*) FROM users") as long? ?? 0;
|
||||
}
|
||||
|
||||
private long ComputeMessageStatistics(CancellationToken token) {
|
||||
using var conn = pool.Take();
|
||||
return conn.SelectScalar("SELECT COUNT(*) FROM messages") as long? ?? 0L;
|
||||
}
|
||||
|
||||
private void UpdateMessageStatistics(long totalMessages) {
|
||||
Statistics.TotalMessages = totalMessages;
|
||||
private void UpdateMessageStatistics(ISqliteConnection conn) {
|
||||
Statistics.TotalMessages = conn.SelectScalar("SELECT COUNT(*) FROM messages") as long? ?? 0L;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
54
app/Server/Database/Sqlite/SqliteMessageStatisticsThread.cs
Normal file
54
app/Server/Database/Sqlite/SqliteMessageStatisticsThread.cs
Normal file
@ -0,0 +1,54 @@
|
||||
using System;
|
||||
using System.Threading;
|
||||
using DHT.Server.Database.Sqlite.Utils;
|
||||
|
||||
namespace DHT.Server.Database.Sqlite {
|
||||
sealed class SqliteMessageStatisticsThread : IDisposable {
|
||||
private readonly SqliteConnectionPool pool;
|
||||
private readonly Action<ISqliteConnection> action;
|
||||
|
||||
private readonly CancellationTokenSource cancellationTokenSource = new();
|
||||
private readonly CancellationToken cancellationToken;
|
||||
|
||||
private readonly AutoResetEvent requestEvent = new (false);
|
||||
|
||||
public SqliteMessageStatisticsThread(SqliteConnectionPool pool, Action<ISqliteConnection> action) {
|
||||
this.pool = pool;
|
||||
this.action = action;
|
||||
|
||||
this.cancellationToken = cancellationTokenSource.Token;
|
||||
|
||||
var thread = new Thread(RunThread) {
|
||||
Name = "DHT message statistics thread",
|
||||
IsBackground = true
|
||||
};
|
||||
thread.Start();
|
||||
}
|
||||
|
||||
public void Dispose() {
|
||||
try {
|
||||
cancellationTokenSource.Cancel();
|
||||
} catch (ObjectDisposedException) {}
|
||||
}
|
||||
|
||||
public void RequestUpdate() {
|
||||
try {
|
||||
requestEvent.Set();
|
||||
} catch (ObjectDisposedException) {}
|
||||
}
|
||||
|
||||
private void RunThread() {
|
||||
try {
|
||||
while (!cancellationToken.IsCancellationRequested) {
|
||||
if (requestEvent.WaitOne(TimeSpan.FromMilliseconds(100))) {
|
||||
using var conn = pool.Take();
|
||||
action(conn);
|
||||
}
|
||||
}
|
||||
} finally {
|
||||
cancellationTokenSource.Dispose();
|
||||
requestEvent.Dispose();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,115 +0,0 @@
|
||||
using System;
|
||||
using System.Diagnostics.CodeAnalysis;
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
|
||||
namespace DHT.Utils.Tasks {
|
||||
public sealed class AsyncValueComputer<TValue> {
|
||||
private readonly Action<TValue> resultProcessor;
|
||||
private readonly TaskScheduler resultTaskScheduler;
|
||||
private readonly bool processOutdatedResults;
|
||||
|
||||
private readonly object stateLock = new ();
|
||||
|
||||
private CancellationTokenSource? currentCancellationTokenSource;
|
||||
private Func<CancellationToken, TValue>? currentComputeFunction;
|
||||
private bool hasComputeFunctionChanged = false;
|
||||
|
||||
private AsyncValueComputer(Action<TValue> resultProcessor, TaskScheduler resultTaskScheduler, bool processOutdatedResults) {
|
||||
this.resultProcessor = resultProcessor;
|
||||
this.resultTaskScheduler = resultTaskScheduler;
|
||||
this.processOutdatedResults = processOutdatedResults;
|
||||
}
|
||||
|
||||
public void Compute(Func<CancellationToken, TValue> func) {
|
||||
lock (stateLock) {
|
||||
if (currentComputeFunction != null) {
|
||||
currentComputeFunction = func;
|
||||
hasComputeFunctionChanged = true;
|
||||
currentCancellationTokenSource?.Cancel();
|
||||
}
|
||||
else {
|
||||
EnqueueComputation(func);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
[SuppressMessage("ReSharper", "MethodSupportsCancellation")]
|
||||
private void EnqueueComputation(Func<CancellationToken, TValue> func) {
|
||||
var cancellationTokenSource = new CancellationTokenSource();
|
||||
var cancellationToken = cancellationTokenSource.Token;
|
||||
|
||||
currentCancellationTokenSource?.Cancel();
|
||||
currentCancellationTokenSource = cancellationTokenSource;
|
||||
currentComputeFunction = func;
|
||||
hasComputeFunctionChanged = false;
|
||||
|
||||
var task = Task.Run(() => func(cancellationToken));
|
||||
|
||||
task.ContinueWith(t => {
|
||||
if (processOutdatedResults || !cancellationToken.IsCancellationRequested) {
|
||||
resultProcessor(t.Result);
|
||||
}
|
||||
}, CancellationToken.None, TaskContinuationOptions.NotOnFaulted, resultTaskScheduler);
|
||||
|
||||
task.ContinueWith(_ => {
|
||||
lock (stateLock) {
|
||||
cancellationTokenSource.Dispose();
|
||||
|
||||
if (currentCancellationTokenSource == cancellationTokenSource) {
|
||||
currentCancellationTokenSource = null;
|
||||
}
|
||||
|
||||
if (hasComputeFunctionChanged) {
|
||||
EnqueueComputation(currentComputeFunction);
|
||||
}
|
||||
else {
|
||||
currentComputeFunction = null;
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
public sealed class Single {
|
||||
private readonly AsyncValueComputer<TValue> baseComputer;
|
||||
private readonly Func<CancellationToken, TValue> resultComputer;
|
||||
|
||||
internal Single(AsyncValueComputer<TValue> baseComputer, Func<CancellationToken, TValue> resultComputer) {
|
||||
this.baseComputer = baseComputer;
|
||||
this.resultComputer = resultComputer;
|
||||
}
|
||||
|
||||
public void Recompute() {
|
||||
baseComputer.Compute(resultComputer);
|
||||
}
|
||||
}
|
||||
|
||||
public static Builder WithResultProcessor(Action<TValue> resultProcessor, TaskScheduler? scheduler = null) {
|
||||
return new Builder(resultProcessor, scheduler ?? TaskScheduler.FromCurrentSynchronizationContext());
|
||||
}
|
||||
|
||||
public sealed class Builder {
|
||||
private readonly Action<TValue> resultProcessor;
|
||||
private readonly TaskScheduler resultTaskScheduler;
|
||||
private bool processOutdatedResults;
|
||||
|
||||
internal Builder(Action<TValue> resultProcessor, TaskScheduler resultTaskScheduler) {
|
||||
this.resultProcessor = resultProcessor;
|
||||
this.resultTaskScheduler = resultTaskScheduler;
|
||||
}
|
||||
|
||||
public Builder WithOutdatedResults() {
|
||||
this.processOutdatedResults = true;
|
||||
return this;
|
||||
}
|
||||
|
||||
public AsyncValueComputer<TValue> Build() {
|
||||
return new AsyncValueComputer<TValue>(resultProcessor, resultTaskScheduler, processOutdatedResults);
|
||||
}
|
||||
|
||||
public Single BuildWithComputer(Func<CancellationToken, TValue> resultComputer) {
|
||||
return new Single(Build(), resultComputer);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -53,11 +53,11 @@ define('LATEST_VERSION', $version === false ? '_' : $version);
|
||||
<svg class="icon">
|
||||
<use href="#icon-globe" />
|
||||
</svg>
|
||||
<span class="platform">Other</span>
|
||||
<span class="platform">Portable</span>
|
||||
</a>
|
||||
</div>
|
||||
<p>To launch the three OS-specific versions, extract the <strong>DiscordHistoryTracker</strong> executable, and double-click it.</p>
|
||||
<p>To launch the <strong>Other</strong> version, which works on other operating systems including 32-bit versions, you must install <a href="https://dotnet.microsoft.com/download/dotnet/5.0" rel="nofollow noopener">ASP.NET Core Runtime 5</a>. Then extract the downloaded archive into a folder, open the folder in a terminal, and type: <code>dotnet DiscordHistoryTracker.dll</code></p>
|
||||
<p>To launch the <strong>Portable</strong> version, which works on other operating systems including 32-bit versions, you must install <a href="https://dotnet.microsoft.com/download/dotnet/5.0/runtime" rel="nofollow noopener">.NET 5</a>. Then extract the downloaded archive into a folder, open the folder in a terminal, and type: <code>dotnet DiscordHistoryTracker.dll</code></p>
|
||||
|
||||
<h3>How to Track Messages</h3>
|
||||
<p>The app saves messages into a database file stored on your computer. When you open the app, you are given the option to create a new database file, or open an existing one.</p>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user