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Fix cancellation of downloads.

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The Download class cancels asynchronously, which means callers must handle cancellation inside the completion event, and not after requesting cancellation.
This commit is contained in:
RoosterDragon
2016-07-30 16:27:45 +01:00
parent 77d0a8c54e
commit 3b5798b5e8
6 changed files with 61 additions and 55 deletions
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8
OpenRA.Game/Map/MapPreview.cs
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@@ -444,13 +444,13 @@ namespace OpenRA
}
Action<DownloadProgressChangedEventArgs> onDownloadProgress = i => { DownloadBytes = i.BytesReceived; DownloadPercentage = i.ProgressPercentage; };
Action<DownloadDataCompletedEventArgs, bool> onDownloadComplete = (i, cancelled) =>
Action<DownloadDataCompletedEventArgs> onDownloadComplete = i =>
{
download = null;
if (cancelled || i.Error != null)
if (i.Error != null)
{
Log.Write("debug", "Remote map download failed with error: {0}", i.Error != null ? i.Error.Message : "cancelled");
Log.Write("debug", "Remote map download failed with error: {0}", Download.FormatErrorMessage(i.Error));
Log.Write("debug", "URL was: {0}", mapUrl);
innerData.Status = MapStatus.DownloadError;
@@ -487,7 +487,7 @@ namespace OpenRA
if (download == null)
return;
download.Cancel();
download.CancelAsync();
download = null;
}