/// <summary>
/// 开始下载，若获取大小失败，则会抛出异常
/// </summary>
public async ValueTask DownloadAsync(CancellationToken token)
{
StatusSubject.OnNext(@"正在获取下载文件大小...");
FileSize = await GetContentLengthAsync(token); //总大小
TempDir = EnsureDirectory(TempDir);
var list = GetFileRangeList();
var opQueue = new OperationQueue(1);
Current = 0;
Last = 0;
try
{
using var speedMonitor = CreateSpeedMonitor();
StatusSubject.OnNext(@"正在下载...");
await list.Select(info =>
// ReSharper disable once AccessToDisposedClosure
opQueue.Enqueue(1, () => GetStreamAsync(info, token))
.ToObservable()
.SelectMany(res => WriteToFileAsync(res.Item1, res.Item2, token))
).Merge();
StatusSubject.OnNext(@"下载完成，正在合并文件...");
Current = 0;
await MergeFilesAsync(list, token);
}
catch (OperationCanceledException)
{
StatusSubject.OnNext(@"下载已取消");
throw;
}
catch (Exception ex)
{
_logger.LogError(ex, @"下载出错");
StatusSubject.OnNext(@"下载出错");
}
finally
{
await opQueue.ShutdownQueue();
opQueue.Dispose();
Task.Run(async() =>
{
foreach (var range in list)
{
await DeleteFileWithRetryAsync(range.FileName);
}
}, CancellationToken.None).NoWarning();
}
}
public void Dispose()
{
serverConnected.Dispose();
serverDisconnected.Dispose();
serverReady.Dispose();
continueGame.Dispose();
playersInGameChanged.Dispose();
gameDisbanded.Dispose();
gameWillBegin.Dispose();
gameBegin.Dispose();
newMessageArrived.Dispose();
announcementArrived.Dispose();
beginGameFailed.Dispose();
invitationArrived.Dispose();
_queue.Dispose();
closeConnect();
GameObject.Destroy(gameObject);
}