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169 lines
5 KiB
C#
169 lines
5 KiB
C#
using System;
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using System.Collections.Generic;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Session;
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namespace MediaBrowser.Controller.SyncPlay
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{
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/// <summary>
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/// Class GroupInfo.
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/// </summary>
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/// <remarks>
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/// Class is not thread-safe, external locking is required when accessing methods.
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/// </remarks>
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public class GroupInfo
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{
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/// <summary>
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/// Default ping value used for sessions.
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/// </summary>
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public long DefaulPing { get; } = 500;
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/// <summary>
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/// Gets or sets the group identifier.
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/// </summary>
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/// <value>The group identifier.</value>
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public Guid GroupId { get; } = Guid.NewGuid();
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/// <summary>
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/// Gets or sets the playing item.
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/// </summary>
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/// <value>The playing item.</value>
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public BaseItem PlayingItem { get; set; }
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/// <summary>
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/// Gets or sets whether playback is paused.
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/// </summary>
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/// <value>Playback is paused.</value>
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public bool IsPaused { get; set; }
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/// <summary>
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/// Gets or sets the position ticks.
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/// </summary>
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/// <value>The position ticks.</value>
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public long PositionTicks { get; set; }
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/// <summary>
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/// Gets or sets the last activity.
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/// </summary>
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/// <value>The last activity.</value>
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public DateTime LastActivity { get; set; }
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/// <summary>
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/// Gets the participants.
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/// </summary>
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/// <value>The participants, or members of the group.</value>
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public Dictionary<string, GroupMember> Participants { get; } =
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new Dictionary<string, GroupMember>(StringComparer.OrdinalIgnoreCase);
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/// <summary>
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/// Checks if a session is in this group.
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/// </summary>
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/// <value><c>true</c> if the session is in this group; <c>false</c> otherwise.</value>
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public bool ContainsSession(string sessionId)
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{
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return Participants.ContainsKey(sessionId);
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}
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/// <summary>
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/// Adds the session to the group.
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/// </summary>
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/// <param name="session">The session.</param>
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public void AddSession(SessionInfo session)
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{
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if (ContainsSession(session.Id.ToString()))
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{
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return;
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}
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var member = new GroupMember();
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member.Session = session;
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member.Ping = DefaulPing;
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member.IsBuffering = false;
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Participants[session.Id.ToString()] = member;
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}
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/// <summary>
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/// Removes the session from the group.
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/// </summary>
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/// <param name="session">The session.</param>
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public void RemoveSession(SessionInfo session)
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{
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if (!ContainsSession(session.Id.ToString()))
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{
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return;
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}
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Participants.Remove(session.Id.ToString(), out _);
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}
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/// <summary>
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/// Updates the ping of a session.
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/// </summary>
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/// <param name="session">The session.</param>
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/// <param name="ping">The ping.</param>
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public void UpdatePing(SessionInfo session, long ping)
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{
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if (!ContainsSession(session.Id.ToString()))
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{
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return;
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}
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Participants[session.Id.ToString()].Ping = ping;
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}
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/// <summary>
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/// Gets the highest ping in the group.
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/// </summary>
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/// <value name="session">The highest ping in the group.</value>
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public long GetHighestPing()
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{
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long max = Int64.MinValue;
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foreach (var session in Participants.Values)
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{
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max = Math.Max(max, session.Ping);
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}
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return max;
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}
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/// <summary>
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/// Sets the session's buffering state.
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/// </summary>
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/// <param name="session">The session.</param>
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/// <param name="isBuffering">The state.</param>
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public void SetBuffering(SessionInfo session, bool isBuffering)
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{
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if (!ContainsSession(session.Id.ToString()))
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{
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return;
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}
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Participants[session.Id.ToString()].IsBuffering = isBuffering;
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}
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/// <summary>
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/// Gets the group buffering state.
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/// </summary>
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/// <value><c>true</c> if there is a session buffering in the group; <c>false</c> otherwise.</value>
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public bool IsBuffering()
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{
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foreach (var session in Participants.Values)
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{
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if (session.IsBuffering)
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{
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// Checks if the group is empty.
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/// </summary>
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/// <value><c>true</c> if the group is empty; <c>false</c> otherwise.</value>
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public bool IsEmpty()
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{
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return Participants.Count == 0;
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}
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}
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}
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