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Improve sub menu loading performance

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Use thread pool for background icon loading.
This eliminates massive thread spawns on very large folders.
This commit is contained in:
Peter Kirmeier 2023-09-23 12:18:01 +02:00
parent dcae66979f
commit 5e2d17b02b
1 changed files with 26 additions and 6 deletions
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32
Utilities/File/IconReader.cs
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@ -23,9 +23,32 @@ namespace SystemTrayMenu.Utilities
/// </summary>
internal static class IconReader
{
private static readonly BitmapSource? OverlayImage = (BitmapSource?)Application.Current.Resources["LinkArrowIconImage"];
private static readonly ConcurrentDictionary<string, BitmapSource> IconDictPersistent = new();
private static readonly ConcurrentDictionary<string, BitmapSource> IconDictCache = new();
private static readonly BitmapSource? OverlayImage = (BitmapSource?)Application.Current.Resources["LinkArrowIconImage"];
private static readonly BlockingCollection<Action> IconFactoryQueue = new();
private static readonly List<Thread> IconFactoryThreadPoolSTA = new(16);
static IconReader()
{
for (int i = 0; i < IconFactoryThreadPoolSTA.Capacity; i++)
{
Thread thread = new(IconFactoryWorkerSTA);
thread.Name = "IconFactory STA #" + i.ToString();
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
IconFactoryThreadPoolSTA.Add(thread);
}
void IconFactoryWorkerSTA()
{
while(true)
{
IconFactoryQueue.Take()();
}
}
}
internal static void ClearCacheWhenLimitReached()
{
@ -110,14 +133,11 @@ namespace SystemTrayMenu.Utilities
}
else
{
Thread thread = new(UpdateIconInBackgroundSTA);
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
void UpdateIconInBackgroundSTA()
IconFactoryQueue.Add(() =>
{
BitmapSource icon = DictIconCache(checkPersistentFirst).GetOrAdd(key, factory);
onIconLoaded(icon);
}
});
return false;
}