Fix consumer count off by one when closing a browser tab with a livestream that is transcoding (#13220)

Rework Implementation
Fix review issues
Add missing nullorempty check
Fix closely related #13721
This commit is contained in:
timminator 2025-03-28 00:59:08 +01:00 committed by GitHub
parent ae4b35da46
commit 181a37a8cd
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3 changed files with 87 additions and 17 deletions

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@ -64,6 +64,9 @@ namespace Emby.Server.Implementations.Session
private readonly ConcurrentDictionary<string, SessionInfo> _activeConnections
= new(StringComparer.OrdinalIgnoreCase);
private readonly ConcurrentDictionary<string, ConcurrentDictionary<string, string>> _activeLiveStreamSessions
= new(StringComparer.OrdinalIgnoreCase);
private Timer _idleTimer;
private Timer _inactiveTimer;
@ -311,13 +314,49 @@ namespace Emby.Server.Implementations.Session
_activeConnections.TryRemove(key, out _);
if (!string.IsNullOrEmpty(session.PlayState?.LiveStreamId))
{
await _mediaSourceManager.CloseLiveStream(session.PlayState.LiveStreamId).ConfigureAwait(false);
await CloseLiveStreamIfNeededAsync(session.PlayState.LiveStreamId, session.Id).ConfigureAwait(false);
}
await OnSessionEnded(session).ConfigureAwait(false);
}
}
/// <inheritdoc />
public async Task CloseLiveStreamIfNeededAsync(string liveStreamId, string sessionIdOrPlaySessionId)
{
bool liveStreamNeedsToBeClosed = false;
if (_activeLiveStreamSessions.TryGetValue(liveStreamId, out var activeSessionMappings))
{
if (activeSessionMappings.TryRemove(sessionIdOrPlaySessionId, out var correspondingId))
{
if (!string.IsNullOrEmpty(correspondingId))
{
activeSessionMappings.TryRemove(correspondingId, out _);
}
liveStreamNeedsToBeClosed = true;
}
if (activeSessionMappings.IsEmpty)
{
_activeLiveStreamSessions.TryRemove(liveStreamId, out _);
}
}
if (liveStreamNeedsToBeClosed)
{
try
{
await _mediaSourceManager.CloseLiveStream(liveStreamId).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error closing live stream");
}
}
}
/// <inheritdoc />
public async ValueTask ReportSessionEnded(string sessionId)
{
@ -737,6 +776,11 @@ namespace Emby.Server.Implementations.Session
}
}
if (!string.IsNullOrEmpty(info.LiveStreamId))
{
UpdateLiveStreamActiveSessionMappings(info.LiveStreamId, info.SessionId, info.PlaySessionId);
}
var eventArgs = new PlaybackStartEventArgs
{
Item = libraryItem,
@ -794,6 +838,32 @@ namespace Emby.Server.Implementations.Session
return OnPlaybackProgress(info, false);
}
private void UpdateLiveStreamActiveSessionMappings(string liveStreamId, string sessionId, string playSessionId)
{
var activeSessionMappings = _activeLiveStreamSessions.GetOrAdd(liveStreamId, _ => new ConcurrentDictionary<string, string>());
if (!string.IsNullOrEmpty(playSessionId))
{
if (!activeSessionMappings.TryGetValue(sessionId, out var currentPlaySessionId) || currentPlaySessionId != playSessionId)
{
if (!string.IsNullOrEmpty(currentPlaySessionId))
{
activeSessionMappings.TryRemove(currentPlaySessionId, out _);
}
activeSessionMappings[sessionId] = playSessionId;
activeSessionMappings[playSessionId] = sessionId;
}
}
else
{
if (!activeSessionMappings.TryGetValue(sessionId, out _))
{
activeSessionMappings[sessionId] = string.Empty;
}
}
}
/// <summary>
/// Used to report playback progress for an item.
/// </summary>
@ -834,6 +904,11 @@ namespace Emby.Server.Implementations.Session
}
}
if (!string.IsNullOrEmpty(info.LiveStreamId))
{
UpdateLiveStreamActiveSessionMappings(info.LiveStreamId, info.SessionId, info.PlaySessionId);
}
var eventArgs = new PlaybackProgressEventArgs
{
Item = libraryItem,
@ -1016,14 +1091,7 @@ namespace Emby.Server.Implementations.Session
if (!string.IsNullOrEmpty(info.LiveStreamId))
{
try
{
await _mediaSourceManager.CloseLiveStream(info.LiveStreamId).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error closing live stream");
}
await CloseLiveStreamIfNeededAsync(info.LiveStreamId, session.Id).ConfigureAwait(false);
}
var eventArgs = new PlaybackStopEventArgs
@ -2071,6 +2139,7 @@ namespace Emby.Server.Implementations.Session
}
_activeConnections.Clear();
_activeLiveStreamSessions.Clear();
}
}
}

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@ -342,5 +342,13 @@ namespace MediaBrowser.Controller.Session
Task RevokeUserTokens(Guid userId, string currentAccessToken);
Task CloseIfNeededAsync(SessionInfo session);
/// <summary>
/// Used to close the livestream if needed.
/// </summary>
/// <param name="liveStreamId">The livestream id.</param>
/// <param name="sessionIdOrPlaySessionId">The session id or playsession id.</param>
/// <returns>Task.</returns>
Task CloseLiveStreamIfNeededAsync(string liveStreamId, string sessionIdOrPlaySessionId);
}
}

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@ -242,14 +242,7 @@ public sealed class TranscodeManager : ITranscodeManager, IDisposable
if (closeLiveStream && !string.IsNullOrWhiteSpace(job.LiveStreamId))
{
try
{
await _mediaSourceManager.CloseLiveStream(job.LiveStreamId).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error closing live stream for {Path}", job.Path);
}
await _sessionManager.CloseLiveStreamIfNeededAsync(job.LiveStreamId, job.PlaySessionId).ConfigureAwait(false);
}
}