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WIP Make collections thread-safe and add safe iteration

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Replaced static lists and dictionaries with thread-safe ConcurrentDictionary or ThreadLocal collections for various item components and systems. Updated all relevant code to use snapshots (ToArray, ToList) for safe iteration, and added helper methods for marking and clearing changed connections. These changes improve thread safety and prevent potential concurrency issues in multi-threaded scenarios.
This commit is contained in:
Eero
2025-12-28 04:59:56 +08:00
parent 90962b2328
commit 46595b1399
25 changed files with 519 additions and 245 deletions
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Barotrauma/BarotraumaShared/SharedSource/Items/Components/DockingPort.cs
+9 -11
View File
@@ -5,6 +5,7 @@ using FarseerPhysics.Dynamics;
using FarseerPhysics.Dynamics.Joints;
using Microsoft.Xna.Framework;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
#if CLIENT
@@ -24,11 +25,8 @@ namespace Barotrauma.Items.Components
Right
}
private static readonly List<DockingPort> list = new List<DockingPort>();
public static IEnumerable<DockingPort> List
{
get { return list; }
}
private static readonly ConcurrentDictionary<DockingPort, byte> _dockingPortDict = new ConcurrentDictionary<DockingPort, byte>();
public static IEnumerable<DockingPort> List => _dockingPortDict.Keys;
private Sprite overlaySprite;
private float dockingState;
@@ -168,7 +166,7 @@ namespace Barotrauma.Items.Components
IsActive = true;
list.Add(this);
_dockingPortDict.TryAdd(this, 0);
}
public override void FlipX(bool relativeToSub)
@@ -200,7 +198,7 @@ namespace Barotrauma.Items.Components
{
float closestDist = float.MaxValue;
DockingPort closestPort = null;
foreach (DockingPort port in list)
foreach (DockingPort port in List)
{
if (port == this || port.item.Submarine == item.Submarine || port.IsHorizontal != IsHorizontal) { continue; }
float xDist = Math.Abs(port.item.WorldPosition.X - item.WorldPosition.X);
@@ -532,8 +530,8 @@ namespace Barotrauma.Items.Components
wire.TryConnect(recipient, addNode: false);
//Flag connections to be updated
Powered.ChangedConnections.Add(powerConnection);
Powered.ChangedConnections.Add(recipient);
Powered.MarkConnectionChanged(powerConnection);
Powered.MarkConnectionChanged(recipient);
}
private void CreateDoorBody()
@@ -1007,7 +1005,7 @@ namespace Barotrauma.Items.Components
Connection powerConnection = Item.Connections.Find(c => c.IsPower);
if (powerConnection != null)
{
Powered.ChangedConnections.Add(powerConnection);
Powered.MarkConnectionChanged(powerConnection);
}
if (doorBody != null)
@@ -1151,7 +1149,7 @@ namespace Barotrauma.Items.Components
protected override void RemoveComponentSpecific()
{
base.RemoveComponentSpecific();
list.Remove(this);
_dockingPortDict.TryRemove(this, out _);
hulls[0]?.Remove(); hulls[0] = null;
hulls[1]?.Remove(); hulls[1] = null;
gap?.Remove(); gap = null;
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Door.cs
+5 -4
View File
@@ -2,6 +2,7 @@
using FarseerPhysics;
using Microsoft.Xna.Framework;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using FarseerPhysics.Dynamics;
@@ -14,9 +15,9 @@ namespace Barotrauma.Items.Components
{
partial class Door : Pickable, IDrawableComponent, IServerSerializable
{
private static readonly HashSet<Door> doorList = new HashSet<Door>();
private static readonly ConcurrentDictionary<Door, byte> _doorDict = new ConcurrentDictionary<Door, byte>();
public static IReadOnlyCollection<Door> DoorList { get { return doorList; } }
public static ICollection<Door> DoorList => _doorDict.Keys;
private Gap linkedGap;
private bool isOpen;
@@ -277,7 +278,7 @@ namespace Barotrauma.Items.Components
}
IsActive = true;
doorList.Add(this);
_doorDict.TryAdd(this, 0);
}
public override void OnItemLoaded()
@@ -669,7 +670,7 @@ namespace Barotrauma.Items.Components
convexHull2?.Remove();
#endif
doorList.Remove(this);
_doorDict.TryRemove(this, out _);
}
private bool CheckSubmarinesInDoorWay()
Barotrauma/BarotraumaShared/SharedSource/Items/Components/ElectricalDischarger.cs
+5 -7
View File
@@ -3,6 +3,7 @@ using Barotrauma.Networking;
using FarseerPhysics;
using Microsoft.Xna.Framework;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
@@ -10,11 +11,8 @@ namespace Barotrauma.Items.Components
{
partial class ElectricalDischarger : Powered, IServerSerializable
{
private static readonly List<ElectricalDischarger> list = new List<ElectricalDischarger>();
public static IEnumerable<ElectricalDischarger> List
{
get { return list; }
}
private static readonly ConcurrentDictionary<ElectricalDischarger, byte> _dischargerDict = new ConcurrentDictionary<ElectricalDischarger, byte>();
public static IEnumerable<ElectricalDischarger> List => _dischargerDict.Keys;
const int MaxNodes = 100;
const float MaxNodeDistance = 150.0f;
@@ -115,7 +113,7 @@ namespace Barotrauma.Items.Components
public ElectricalDischarger(Item item, ContentXElement element) :
base(item, element)
{
list.Add(this);
_dischargerDict.TryAdd(this, 0);
foreach (var subElement in element.Elements())
{
@@ -604,7 +602,7 @@ namespace Barotrauma.Items.Components
protected override void RemoveComponentSpecific()
{
base.RemoveComponentSpecific();
list.Remove(this);
_dischargerDict.TryRemove(this, out _);
}
public void ServerEventWrite(IWriteMessage msg, Client c, NetEntityEvent.IData extraData = null)
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Holdable/Holdable.cs
+7 -5
View File
@@ -9,6 +9,7 @@ using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using System.Threading;
using System.Xml.Linq;
namespace Barotrauma.Items.Components
@@ -616,12 +617,13 @@ namespace Barotrauma.Items.Components
return CanBeAttached(user, out _);
}
private static List<Item> tempOverlappingItems = new List<Item>();
private static readonly ThreadLocal<List<Item>> tempOverlappingItems = new ThreadLocal<List<Item>>(() => new List<Item>());
private bool CanBeAttached(Character user, out IEnumerable<Item> overlappingItems)
{
tempOverlappingItems.Clear();
overlappingItems = tempOverlappingItems;
var overlapping = tempOverlappingItems.Value;
overlapping.Clear();
overlappingItems = overlapping;
if (!attachable || !Reattachable) { return false; }
//can be attached anywhere in sub editor
@@ -664,9 +666,9 @@ namespace Barotrauma.Items.Components
}
if (attachPos.X + size.X < worldRect.X || attachPos.X - size.X > worldRect.Right) { continue; }
if (attachPos.Y - size.Y > worldRect.Y || attachPos.Y + size.Y < worldRect.Y - worldRect.Height) { continue; }
tempOverlappingItems.Add(otherItem);
overlapping.Add(otherItem);
}
if (tempOverlappingItems.Any()) { return false; }
if (overlapping.Any()) { return false; }
}
//can be attached anywhere inside hulls
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Holdable/RepairTool.cs
+17 -15
View File
@@ -4,6 +4,7 @@ using Microsoft.Xna.Framework;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using Barotrauma.Extensions;
using Barotrauma.MapCreatures.Behavior;
@@ -315,7 +316,7 @@ namespace Barotrauma.Items.Components
partial void UseProjSpecific(float deltaTime, Vector2 raystart);
private static readonly List<Body> hitBodies = new List<Body>();
private static readonly ThreadLocal<List<Body>> hitBodies = new ThreadLocal<List<Body>>(() => new List<Body>());
private readonly HashSet<Character> hitCharacters = new HashSet<Character>();
private readonly List<FireSource> fireSourcesInRange = new List<FireSource>();
private void Repair(Vector2 rayStart, Vector2 rayEnd, float deltaTime, Character user, float degreeOfSuccess, List<Body> ignoredBodies)
@@ -373,13 +374,13 @@ namespace Barotrauma.Items.Components
},
allowInsideFixture: true);
hitBodies.Clear();
hitBodies.AddRange(bodies.Distinct());
hitBodies.Value.Clear();
hitBodies.Value.AddRange(bodies.Distinct());
lastPickedFraction = Submarine.LastPickedFraction;
Type lastHitType = null;
hitCharacters.Clear();
foreach (Body body in hitBodies)
foreach (Body body in hitBodies.Value)
{
Type bodyType = body.UserData?.GetType();
if (!RepairThroughWalls && bodyType != null && bodyType != lastHitType)
@@ -897,48 +898,49 @@ namespace Barotrauma.Items.Components
}
}
private static List<ISerializableEntity> currentTargets = new List<ISerializableEntity>();
private static readonly ThreadLocal<List<ISerializableEntity>> currentTargets = new ThreadLocal<List<ISerializableEntity>>(() => new List<ISerializableEntity>());
private void ApplyStatusEffectsOnTarget(Character user, float deltaTime, ActionType actionType, Item targetItem = null, Character character = null, Limb limb = null, Structure structure = null)
{
if (statusEffectLists == null) { return; }
if (!statusEffectLists.TryGetValue(actionType, out List<StatusEffect> statusEffects)) { return; }
var targets = currentTargets.Value;
foreach (StatusEffect effect in statusEffects)
{
currentTargets.Clear();
targets.Clear();
effect.SetUser(user);
if (effect.HasTargetType(StatusEffect.TargetType.UseTarget))
{
if (targetItem != null)
{
currentTargets.AddRange(targetItem.AllPropertyObjects);
targets.AddRange(targetItem.AllPropertyObjects);
}
if (structure != null)
{
currentTargets.Add(structure);
targets.Add(structure);
}
if (character != null)
{
currentTargets.Add(character);
targets.Add(character);
}
effect.Apply(actionType, deltaTime, item, currentTargets);
effect.Apply(actionType, deltaTime, item, targets);
}
else if (effect.HasTargetType(StatusEffect.TargetType.Character))
{
currentTargets.Add(user);
effect.Apply(actionType, deltaTime, item, currentTargets);
targets.Add(user);
effect.Apply(actionType, deltaTime, item, targets);
}
else if (effect.HasTargetType(StatusEffect.TargetType.Limb))
{
currentTargets.Add(limb);
effect.Apply(actionType, deltaTime, item, currentTargets);
targets.Add(limb);
effect.Apply(actionType, deltaTime, item, targets);
}
#if CLIENT
if (user == null) { return; }
// Hard-coded progress bars for welding doors stuck.
// A general purpose system could be better, but it would most likely require changes in the way we define the status effects in xml.
foreach (ISerializableEntity target in currentTargets)
foreach (ISerializableEntity target in targets)
{
if (target is not Door door) { continue; }
if (!door.CanBeWelded || !door.Item.IsInteractable(user)) { continue; }
Barotrauma/BarotraumaShared/SharedSource/Items/Components/ItemComponent.cs
+2 -1
View File
@@ -949,7 +949,8 @@ namespace Barotrauma.Items.Components
//if any of the effects reduce the item's condition, set the user for OnBroken effects as well
if (reducesCondition && user != null && type != ActionType.OnBroken)
{
foreach (ItemComponent ic in item.Components)
// Use ToArray() snapshot for thread-safe iteration
foreach (ItemComponent ic in item.Components.ToArray())
{
if (ic.statusEffectLists == null || !ic.statusEffectLists.TryGetValue(ActionType.OnBroken, out List<StatusEffect> brokenEffects)) { continue; }
foreach (var brokenEffect in brokenEffects)
Barotrauma/BarotraumaShared/SharedSource/Items/Components/ItemContainer.cs
+2 -1
View File
@@ -884,7 +884,8 @@ namespace Barotrauma.Items.Components
RelatedItem containableItem = FindContainableItem(containedItem);
if (containableItem != null && containableItem.SetActive)
{
foreach (var ic in containedItem.Components)
// Use ToArray() snapshot for thread-safe iteration
foreach (var ic in containedItem.Components.ToArray())
{
ic.IsActive = active;
}
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Ladder.cs
+6 -4
View File
@@ -1,17 +1,19 @@
using System.Collections.Generic;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Xml.Linq;
namespace Barotrauma.Items.Components
{
partial class Ladder : ItemComponent
{
public static List<Ladder> List { get; } = new List<Ladder>();
private static readonly ConcurrentDictionary<Ladder, byte> _ladderDict = new ConcurrentDictionary<Ladder, byte>();
public static IEnumerable<Ladder> List => _ladderDict.Keys;
public Ladder(Item item, ContentXElement element)
: base(item, element)
{
InitProjSpecific(element);
List.Add(this);
_ladderDict.TryAdd(this, 0);
}
partial void InitProjSpecific(ContentXElement element);
@@ -28,7 +30,7 @@ namespace Barotrauma.Items.Components
{
base.RemoveComponentSpecific();
RemoveProjSpecific();
List.Remove(this);
_ladderDict.TryRemove(this, out _);
}
partial void RemoveProjSpecific();
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Machines/Controller.cs
+7 -4
View File
@@ -5,6 +5,7 @@ using System;
using System.Collections.Generic;
using System.Globalization;
using System.Xml.Linq;
using System.Linq;
namespace Barotrauma.Items.Components
{
@@ -497,12 +498,14 @@ namespace Barotrauma.Items.Components
item.SendSignal(new Signal(MathHelper.ToDegrees(targetRotation).ToString("G", CultureInfo.InvariantCulture), sender: user), positionOut);
for (int i = item.LastSentSignalRecipients.Count - 1; i >= 0; i--)
// Use ToList() snapshot for thread-safe iteration
var signalRecipients = item.LastSentSignalRecipients.ToList();
for (int i = signalRecipients.Count - 1; i >= 0; i--)
{
if (item.LastSentSignalRecipients[i].Item.Condition <= 0.0f || item.LastSentSignalRecipients[i].IsPower) { continue; }
if (item.LastSentSignalRecipients[i].Item.Prefab.FocusOnSelected)
if (signalRecipients[i].Item.Condition <= 0.0f || signalRecipients[i].IsPower) { continue; }
if (signalRecipients[i].Item.Prefab.FocusOnSelected)
{
return item.LastSentSignalRecipients[i].Item;
return signalRecipients[i].Item;
}
}
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Machines/Sonar.cs
+14 -9
View File
@@ -1,14 +1,17 @@
using Barotrauma.Networking;
using Microsoft.Xna.Framework;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
namespace Barotrauma.Items.Components
{
partial class Sonar : Powered, IServerSerializable, IClientSerializable
{
public static List<Sonar> SonarList = new List<Sonar>();
private static readonly ConcurrentDictionary<Sonar, byte> _sonarDict = new ConcurrentDictionary<Sonar, byte>();
public static IEnumerable<Sonar> SonarList => _sonarDict.Keys;
public enum Mode
{
@@ -169,7 +172,7 @@ namespace Barotrauma.Items.Components
IsActive = true;
InitProjSpecific(element);
CurrentMode = Mode.Passive;
SonarList.Add(this);
_sonarDict.TryAdd(this, 0);
}
partial void InitProjSpecific(ContentXElement element);
@@ -291,13 +294,15 @@ namespace Barotrauma.Items.Components
return currentPingIndex != -1 && (character == null || characterUsable);
}
private static readonly Dictionary<string, List<Character>> targetGroups = new Dictionary<string, List<Character>>();
private static readonly ThreadLocal<Dictionary<string, List<Character>>> targetGroups =
new ThreadLocal<Dictionary<string, List<Character>>>(() => new Dictionary<string, List<Character>>());
public override bool CrewAIOperate(float deltaTime, Character character, AIObjectiveOperateItem objective)
{
if (currentMode == Mode.Passive || !aiPingCheckPending) { return false; }
foreach (List<Character> targetGroup in targetGroups.Values)
var groups = targetGroups.Value;
foreach (List<Character> targetGroup in groups.Values)
{
targetGroup.Clear();
}
@@ -310,14 +315,14 @@ namespace Barotrauma.Items.Components
#warning This is not the best key for a dictionary.
string directionName = GetDirectionName(c.WorldPosition - item.WorldPosition).Value;
if (!targetGroups.ContainsKey(directionName))
if (!groups.ContainsKey(directionName))
{
targetGroups.Add(directionName, new List<Character>());
groups.Add(directionName, new List<Character>());
}
targetGroups[directionName].Add(c);
groups[directionName].Add(c);
}
foreach (KeyValuePair<string, List<Character>> targetGroup in targetGroups)
foreach (KeyValuePair<string, List<Character>> targetGroup in groups)
{
if (!targetGroup.Value.Any()) { continue; }
string dialogTag = "DialogSonarTarget";
@@ -401,7 +406,7 @@ namespace Barotrauma.Items.Components
MineralClusters = null;
#endif
SonarList.Remove(this);
_sonarDict.TryRemove(this, out _);
}
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Power/PowerTransfer.cs
+67 -52
View File
@@ -1,6 +1,7 @@
using Barotrauma.Extensions;
using Microsoft.Xna.Framework;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
@@ -13,10 +14,12 @@ namespace Barotrauma.Items.Components
private readonly HashSet<Connection> signalConnections = new HashSet<Connection>();
private readonly Dictionary<Connection, bool> connectionDirty = new Dictionary<Connection, bool>();
private readonly ConcurrentDictionary<Connection, bool> connectionDirty = new ConcurrentDictionary<Connection, bool>();
//a list of connections a given connection is connected to, either directly or via other power transfer components
private readonly Dictionary<Connection, HashSet<Connection>> connectedRecipients = new Dictionary<Connection, HashSet<Connection>>();
//Uses ConcurrentDictionary<Connection, byte> as a thread-safe HashSet replacement
private readonly ConcurrentDictionary<Connection, ConcurrentDictionary<Connection, byte>> connectedRecipients =
new ConcurrentDictionary<Connection, ConcurrentDictionary<Connection, byte>>();
private float overloadCooldownTimer;
private const float OverloadCooldown = 5.0f;
@@ -132,7 +135,7 @@ namespace Barotrauma.Items.Components
partial void InitProjectSpecific(XElement element);
private static readonly HashSet<PowerTransfer> recipientsToRefresh = new HashSet<PowerTransfer>();
private static readonly System.Collections.Concurrent.ConcurrentDictionary<PowerTransfer, byte> _recipientsToRefresh = new System.Collections.Concurrent.ConcurrentDictionary<PowerTransfer, byte>();
public override void UpdateBroken(float deltaTime, Camera cam)
{
base.UpdateBroken(deltaTime, cam);
@@ -144,20 +147,21 @@ namespace Barotrauma.Items.Components
powerLoad = 0.0f;
currPowerConsumption = 0.0f;
SetAllConnectionsDirty();
recipientsToRefresh.Clear();
foreach (HashSet<Connection> recipientList in connectedRecipients.Values)
_recipientsToRefresh.Clear();
// Take snapshot for thread-safe iteration (no locks needed with ConcurrentDictionary)
foreach (var recipientDict in connectedRecipients.Values)
{
foreach (Connection c in recipientList)
foreach (Connection c in recipientDict.Keys)
{
if (c.Item == item) { continue; }
var recipientPowerTransfer = c.Item.GetComponent<PowerTransfer>();
if (recipientPowerTransfer != null)
{
recipientsToRefresh.Add(recipientPowerTransfer);
_recipientsToRefresh.TryAdd(recipientPowerTransfer, 0);
}
}
}
foreach (PowerTransfer recipientPowerTransfer in recipientsToRefresh)
foreach (PowerTransfer recipientPowerTransfer in _recipientsToRefresh.Keys)
{
recipientPowerTransfer.SetAllConnectionsDirty();
recipientPowerTransfer.RefreshConnections();
@@ -304,58 +308,56 @@ namespace Barotrauma.Items.Components
protected void RefreshConnections()
{
var connections = item.Connections;
foreach (Connection c in connections)
if (connections == null) { return; }
// Take a snapshot of connections for thread-safe iteration
var connectionSnapshot = connections.ToList();
foreach (Connection c in connectionSnapshot)
{
if (!connectionDirty.ContainsKey(c))
if (!connectionDirty.TryGetValue(c, out bool isDirty))
{
connectionDirty[c] = true;
isDirty = true;
}
else if (!connectionDirty[c])
if (!isDirty)
{
continue;
}
//find all connections that are connected to this one (directly or via another PowerTransfer)
HashSet<Connection> tempConnected;
if (!connectedRecipients.ContainsKey(c))
var tempConnected = connectedRecipients.GetOrAdd(c, _ => new ConcurrentDictionary<Connection, byte>());
// Get previous recipients and clear
var previousRecipients = tempConnected.Keys.ToList();
tempConnected.Clear();
//mark all previous recipients as dirty
foreach (Connection recipient in previousRecipients)
{
tempConnected = new HashSet<Connection>();
connectedRecipients.Add(c, tempConnected);
}
else
{
tempConnected = connectedRecipients[c];
tempConnected.Clear();
//mark all previous recipients as dirty
foreach (Connection recipient in tempConnected)
{
var pt = recipient.Item.GetComponent<PowerTransfer>();
if (pt != null) { pt.connectionDirty[recipient] = true; }
}
var pt = recipient.Item.GetComponent<PowerTransfer>();
if (pt != null) { pt.connectionDirty[recipient] = true; }
}
tempConnected.Add(c);
tempConnected.TryAdd(c, 0);
if (item.Condition > 0.0f)
{
GetConnected(c, tempConnected);
//go through all the PowerTransfers that we're connected to and set their connections to match the ones we just calculated
//(no need to go through the recursive GetConnected method again)
foreach (Connection recipient in tempConnected)
// Take snapshot for thread-safe iteration (no locks needed)
var tempConnectedSnapshot = tempConnected.Keys.ToList();
foreach (Connection recipient in tempConnectedSnapshot)
{
if (recipient == c) { continue; }
var recipientPowerTransfer = recipient.Item.GetComponent<PowerTransfer>();
if (recipientPowerTransfer == null) { continue; }
if (!recipientPowerTransfer.connectedRecipients.ContainsKey(recipient))
var recipientSet = recipientPowerTransfer.connectedRecipients.GetOrAdd(recipient, _ => new ConcurrentDictionary<Connection, byte>());
recipientSet.Clear();
foreach (var connection in tempConnectedSnapshot)
{
recipientPowerTransfer.connectedRecipients.Add(recipient, new HashSet<Connection>());
}
else
{
recipientPowerTransfer.connectedRecipients[recipient].Clear();
}
foreach (var connection in tempConnected)
{
recipientPowerTransfer.connectedRecipients[recipient].Add(connection);
recipientSet.TryAdd(connection, 0);
}
recipientPowerTransfer.connectionDirty[recipient] = false;
}
@@ -364,19 +366,20 @@ namespace Barotrauma.Items.Components
}
}
//Finds all the connections that can receive a signal sent into the given connection and stores them in the hashset.
private void GetConnected(Connection c, HashSet<Connection> connected)
//Finds all the connections that can receive a signal sent into the given connection and stores them in the concurrent dictionary.
private void GetConnected(Connection c, ConcurrentDictionary<Connection, byte> connected)
{
var recipients = c.Recipients;
// Take snapshot for thread-safe iteration
var recipients = c.Recipients.ToList();
foreach (Connection recipient in recipients)
{
if (recipient == null || connected.Contains(recipient)) { continue; }
if (recipient == null || connected.ContainsKey(recipient)) { continue; }
Item it = recipient.Item;
if (it == null || it.Condition <= 0.0f) { continue; }
connected.Add(recipient);
connected.TryAdd(recipient, 0);
var powerTransfer = it.GetComponent<PowerTransfer>();
if (powerTransfer != null && powerTransfer.CanTransfer && powerTransfer.IsActive)
@@ -394,10 +397,14 @@ namespace Barotrauma.Items.Components
connectionDirty[c] = true;
if (c.IsPower)
{
ChangedConnections.Add(c);
MarkConnectionChanged(c);
if (connectedRecipients.TryGetValue(c, out var recipients))
{
recipients.Where(c => c.IsPower).ForEach(c => ChangedConnections.Add(c));
// No lock needed - ConcurrentDictionary.Keys is thread-safe
foreach (var conn in recipients.Keys.Where(conn => conn.IsPower))
{
MarkConnectionChanged(conn);
}
}
}
}
@@ -410,10 +417,14 @@ namespace Barotrauma.Items.Components
connectionDirty[connection] = true;
if (connection.IsPower)
{
ChangedConnections.Add(connection);
MarkConnectionChanged(connection);
if (connectedRecipients.TryGetValue(connection, out var recipients))
{
recipients.Where(c => c.IsPower).ForEach(c => ChangedConnections.Add(c));
// No lock needed - ConcurrentDictionary.Keys is thread-safe
foreach (var conn in recipients.Keys.Where(conn => conn.IsPower))
{
MarkConnectionChanged(conn);
}
}
}
}
@@ -452,16 +463,19 @@ namespace Barotrauma.Items.Components
public override void ReceiveSignal(Signal signal, Connection connection)
{
if (item.Condition <= 0.0f || connection.IsPower) { return; }
if (!connectedRecipients.ContainsKey(connection)) { return; }
if (!connectedRecipients.TryGetValue(connection, out var recipients)) { return; }
if (!signalConnections.Contains(connection)) { return; }
foreach (Connection recipient in connectedRecipients[connection])
// No lock needed - ConcurrentDictionary.Keys is thread-safe
// Use ToList() snapshot for thread-safe iteration
foreach (Connection recipient in recipients.Keys.ToList())
{
if (recipient.Item == item || recipient.Item == signal.source) { continue; }
signal.source?.LastSentSignalRecipients.Add(recipient);
foreach (ItemComponent ic in recipient.Item.Components)
// Use ToArray() snapshot for thread-safe iteration
foreach (ItemComponent ic in recipient.Item.Components.ToArray())
{
//other junction boxes don't need to receive the signal in the pass-through signal connections
//because we relay it straight to the connected items without going through the whole chain of junction boxes
@@ -471,7 +485,8 @@ namespace Barotrauma.Items.Components
if (recipient.Effects != null && signal.value != "0" && !string.IsNullOrEmpty(signal.value))
{
foreach (StatusEffect effect in recipient.Effects)
// Use ToArray() snapshot for thread-safe iteration
foreach (StatusEffect effect in recipient.Effects.ToArray())
{
recipient.Item.ApplyStatusEffect(effect, ActionType.OnUse, 1.0f);
}
@@ -484,7 +499,7 @@ namespace Barotrauma.Items.Components
base.RemoveComponentSpecific();
connectedRecipients?.Clear();
connectionDirty?.Clear();
recipientsToRefresh.Clear();
_recipientsToRefresh.Clear();
}
}
}
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Power/Powered.cs
+88 -20
View File
@@ -1,4 +1,6 @@
using System;
using System.Collections.Concurrent;
using System.Threading;
using Microsoft.Xna.Framework;
using System.Collections.Generic;
using System.Linq;
@@ -62,17 +64,77 @@ namespace Barotrauma.Items.Components
protected const float UpdateInterval = (float)Timing.Step;
/// <summary>
/// List of all powered ItemComponents
/// List of all powered ItemComponents (thread-safe)
/// </summary>
private static readonly List<Powered> poweredList = new List<Powered>();
private static readonly ConcurrentDictionary<Powered, byte> _poweredDict = new ConcurrentDictionary<Powered, byte>();
/// <summary>
/// Cached list for iteration - updated when collection changes
/// </summary>
private static volatile List<Powered> _cachedPoweredList;
private static int _poweredListVersion;
public static IEnumerable<Powered> PoweredList
{
get { return poweredList; }
get
{
var cached = _cachedPoweredList;
if (cached != null) return cached;
return GetCachedPoweredList();
}
}
private static List<Powered> GetCachedPoweredList()
{
var newList = _poweredDict.Keys.ToList();
_cachedPoweredList = newList;
return newList;
}
private static void InvalidatePoweredListCache()
{
_cachedPoweredList = null;
Interlocked.Increment(ref _poweredListVersion);
}
public static readonly HashSet<Connection> ChangedConnections = new HashSet<Connection>();
/// <summary>
/// Thread-safe set of changed connections
/// </summary>
private static readonly ConcurrentDictionary<Connection, byte> _changedConnections = new ConcurrentDictionary<Connection, byte>();
/// <summary>
/// Gets all changed connections (snapshot)
/// </summary>
public static ICollection<Connection> ChangedConnections => _changedConnections.Keys;
/// <summary>
/// Add a connection to the changed set
/// </summary>
public static void MarkConnectionChanged(Connection c)
{
_changedConnections.TryAdd(c, 0);
}
/// <summary>
/// Clear all changed connections
/// </summary>
public static void ClearChangedConnections()
{
_changedConnections.Clear();
}
/// <summary>
/// Remove a connection from the changed set
/// </summary>
public static void UnmarkConnectionChanged(Connection c)
{
_changedConnections.TryRemove(c, out _);
}
public readonly static Dictionary<int, GridInfo> Grids = new Dictionary<int, GridInfo>();
/// <summary>
/// Thread-safe grid dictionary
/// </summary>
public readonly static ConcurrentDictionary<int, GridInfo> Grids = new ConcurrentDictionary<int, GridInfo>();
/// <summary>
/// The amount of power currently consumed by the item. Negative values mean that the item is providing power to connected items
@@ -209,7 +271,8 @@ namespace Barotrauma.Items.Components
public Powered(Item item, ContentXElement element)
: base(item, element)
{
poweredList.Add(this);
_poweredDict.TryAdd(this, 0);
InvalidatePoweredListCache();
InitProjectSpecific(element);
}
@@ -322,17 +385,20 @@ namespace Barotrauma.Items.Components
//don't use cache if there are no existing grids
if (Grids.Count > 0 && useCache)
{
// Take a snapshot of changed connections for iteration
var changedSnapshot = ChangedConnections.ToList();
//delete all grids that were affected
foreach (Connection c in ChangedConnections)
foreach (Connection c in changedSnapshot)
{
if (c.Grid != null)
{
Grids.Remove(c.Grid.ID);
Grids.TryRemove(c.Grid.ID, out _);
c.Grid = null;
}
}
foreach (Connection c in ChangedConnections)
foreach (Connection c in changedSnapshot)
{
//Make sure the connection grid hasn't been resolved by another connection update
//Ensure the connection has other connections
@@ -346,7 +412,7 @@ namespace Barotrauma.Items.Components
else
{
//Clear all grid IDs from connections
foreach (Powered powered in poweredList)
foreach (Powered powered in PoweredList)
{
//Only check devices with connectors
if (powered.powerIn != null)
@@ -361,7 +427,7 @@ namespace Barotrauma.Items.Components
Grids.Clear();
foreach (Powered powered in poweredList)
foreach (Powered powered in PoweredList)
{
if (powered.Item.Condition <= 0f) { continue; }
@@ -392,7 +458,7 @@ namespace Barotrauma.Items.Components
}
//Clear changed connections after each update
ChangedConnections.Clear();
ClearChangedConnections();
}
private static GridInfo PropagateGrid(Connection conn)
@@ -422,8 +488,8 @@ namespace Barotrauma.Items.Components
c.Grid = grid;
grid.AddConnection(c);
//Add on recipients
foreach (Connection otherC in c.Recipients)
//Add on recipients - use ToList() snapshot for thread-safe iteration
foreach (Connection otherC in c.Recipients.ToList())
{
//Only add valid connections
if (otherC.Grid != grid && (otherC.Grid == null || !Grids.ContainsKey(otherC.Grid.ID)) && ValidPowerConnection(c, otherC))
@@ -494,7 +560,7 @@ namespace Barotrauma.Items.Components
}
//Determine if devices are adding a load or providing power, also resolve solo nodes
foreach (Powered powered in poweredList)
foreach (Powered powered in PoweredList)
{
//Make voltage decay to ensure the device powers down.
//This only effects devices with no power input (whose voltage is set by other means, e.g. status effects from a contained battery)
@@ -730,7 +796,8 @@ namespace Barotrauma.Items.Components
{
if (item.Connections != null && powerIn != null)
{
foreach (Connection recipient in powerIn.Recipients)
// Use ToList() snapshot for thread-safe iteration
foreach (Connection recipient in powerIn.Recipients.ToList())
{
if (!recipient.IsPower || !recipient.IsOutput) { continue; }
if (recipient.Item?.GetComponent<PowerContainer>() is PowerContainer battery)
@@ -750,13 +817,14 @@ namespace Barotrauma.Items.Components
{
if (c.IsPower && c.Grid != null)
{
ChangedConnections.Add(c);
MarkConnectionChanged(c);
}
}
}
base.RemoveComponentSpecific();
poweredList.Remove(this);
_poweredDict.TryRemove(this, out _);
InvalidatePoweredListCache();
}
}
@@ -780,9 +848,9 @@ namespace Barotrauma.Items.Components
Connections.Remove(c);
//Remove the grid if it has no devices
if (Connections.Count == 0 && Powered.Grids.ContainsKey(ID))
if (Connections.Count == 0)
{
Powered.Grids.Remove(ID);
Powered.Grids.TryRemove(ID, out _);
}
}
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Repairable.cs
+6 -3
View File
@@ -456,7 +456,8 @@ namespace Barotrauma.Items.Components
item.SendSignal(conditionSignal, "condition_out");
foreach (var component in item.Components)
// Use ToArray() snapshot for thread-safe iteration
foreach (var component in item.Components.ToArray())
{
if (component is IDeteriorateUnderStress deteriorateUnderStress)
{
@@ -713,7 +714,8 @@ namespace Barotrauma.Items.Components
#endif
if (LastActiveTime > Timing.TotalTime) { return true; }
foreach (ItemComponent ic in item.Components)
// Use ToArray() snapshot for thread-safe iteration
foreach (ItemComponent ic in item.Components.ToArray())
{
if (ic is Fabricator || ic is Deconstructor)
{
@@ -761,7 +763,8 @@ namespace Barotrauma.Items.Components
private float GetDeteriorationDelayMultiplier()
{
foreach (ItemComponent ic in item.Components)
// Use ToArray() snapshot for thread-safe iteration
foreach (ItemComponent ic in item.Components.ToArray())
{
if (ic is Engine engine)
{
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/Connection.cs
+25 -18
View File
@@ -222,13 +222,14 @@ namespace Barotrauma.Items.Components
public void SetRecipientsDirty()
{
recipientsDirty = true;
if (IsPower) { Powered.ChangedConnections.Add(this); }
if (IsPower) { Powered.MarkConnectionChanged(this); }
}
private void RefreshRecipients()
{
recipients.Clear();
foreach (var wire in wires)
// Use ToArray() snapshot for thread-safe iteration
foreach (var wire in wires.ToArray())
{
Connection recipient = wire.OtherConnection(this);
if (recipient != null) { recipients.Add(recipient); }
@@ -267,8 +268,8 @@ namespace Barotrauma.Items.Components
//Check if both connections belong to a larger grid
if (prevOtherConnection.recipients.Count > 1 && recipients.Count > 1)
{
Powered.ChangedConnections.Add(prevOtherConnection);
Powered.ChangedConnections.Add(this);
Powered.MarkConnectionChanged(prevOtherConnection);
Powered.MarkConnectionChanged(this);
}
else if (recipients.Count > 1)
{
@@ -284,7 +285,7 @@ namespace Barotrauma.Items.Components
else if (Grid.Connections.Count == 2)
{
//Delete the grid as these were the only 2 devices
Powered.Grids.Remove(Grid.ID);
Powered.Grids.TryRemove(Grid.ID, out _);
Grid = null;
prevOtherConnection.Grid = null;
}
@@ -325,8 +326,8 @@ namespace Barotrauma.Items.Components
else
{
//Flag change so that proper grids can be formed
Powered.ChangedConnections.Add(this);
Powered.ChangedConnections.Add(otherConnection);
Powered.MarkConnectionChanged(this);
Powered.MarkConnectionChanged(otherConnection);
}
}
@@ -339,7 +340,8 @@ namespace Barotrauma.Items.Components
{
LastSentSignal = signal;
enumeratingWires = true;
foreach (var wire in wires)
// Use ToArray() snapshot for thread-safe iteration
foreach (var wire in wires.ToArray())
{
Connection recipient = wire.OtherConnection(this);
if (recipient == null) { continue; }
@@ -354,14 +356,14 @@ namespace Barotrauma.Items.Components
GameMain.LuaCs.Hook.Call("signalReceived." + recipient.item.Prefab.Identifier, signal, recipient);
}
foreach (CircuitBoxConnection connection in CircuitBoxConnections)
foreach (CircuitBoxConnection connection in CircuitBoxConnections.ToArray())
{
connection.ReceiveSignal(signal);
GameMain.LuaCs.Hook.Call("signalReceived", signal, connection.Connection);
GameMain.LuaCs.Hook.Call("signalReceived." + connection.Connection.Item.Prefab.Identifier, signal, connection);
}
enumeratingWires = false;
foreach (var removedWire in removedWires)
foreach (var removedWire in removedWires.ToArray())
{
wires.Remove(removedWire);
}
@@ -372,14 +374,16 @@ namespace Barotrauma.Items.Components
{
conn.LastReceivedSignal = signal;
foreach (ItemComponent ic in conn.item.Components)
// Use ToArray() snapshot for thread-safe iteration
foreach (ItemComponent ic in conn.item.Components.ToArray())
{
ic.ReceiveSignal(signal, conn);
}
if (conn.Effects == null || signal.value == "0") { return; }
foreach (StatusEffect effect in conn.Effects)
// Use ToArray() snapshot for thread-safe iteration
foreach (StatusEffect effect in conn.Effects.ToArray())
{
conn.Item.ApplyStatusEffect(effect, ActionType.OnUse, (float)Timing.Step);
}
@@ -389,13 +393,15 @@ namespace Barotrauma.Items.Components
{
if (IsPower && Grid != null)
{
Powered.ChangedConnections.Add(this);
foreach (Connection c in recipients)
Powered.MarkConnectionChanged(this);
// Use ToArray() snapshot for thread-safe iteration
foreach (Connection c in recipients.ToArray())
{
Powered.ChangedConnections.Add(c);
Powered.MarkConnectionChanged(c);
}
}
foreach (var wire in wires)
// Use ToArray() snapshot for thread-safe iteration
foreach (var wire in wires.ToArray())
{
wire.RemoveConnection(this);
recipientsDirty = true;
@@ -403,7 +409,7 @@ namespace Barotrauma.Items.Components
if (enumeratingWires)
{
foreach (var wire in wires)
foreach (var wire in wires.ToArray())
{
removedWires.Add(wire);
}
@@ -446,7 +452,8 @@ namespace Barotrauma.Items.Components
{
XElement newElement = new XElement(IsOutput ? "output" : "input", new XAttribute("name", Name));
foreach (var wire in wires.OrderBy(w => w.Item.ID))
// Use ToArray() snapshot before OrderBy for thread-safe iteration
foreach (var wire in wires.ToArray().OrderBy(w => w.Item.ID))
{
newElement.Add(new XElement("link",
new XAttribute("w", wire.Item.ID.ToString()),
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/ConnectionPanel.cs
+13 -7
View File
@@ -148,14 +148,16 @@ namespace Barotrauma.Items.Components
Vector2 wireNodeOffset = item.Submarine == null ? Vector2.Zero : item.Submarine.HiddenSubPosition + amount;
foreach (Connection c in Connections)
{
foreach (Wire wire in c.Wires)
// Use ToArray() snapshot for thread-safe iteration
foreach (Wire wire in c.Wires.ToArray())
{
if (wire == null) { continue; }
TryMoveWire(wire);
}
}
foreach (var wire in DisconnectedWires)
// Use ToList() snapshot for thread-safe iteration
foreach (var wire in DisconnectedWires.ToList())
{
TryMoveWire(wire);
}
@@ -387,7 +389,7 @@ namespace Barotrauma.Items.Components
}
foreach (var connection in Connections)
{
Powered.ChangedConnections.Remove(connection);
Powered.UnmarkConnectionChanged(connection);
connection.Recipients.Clear();
}
Connections.Clear();
@@ -412,15 +414,19 @@ namespace Barotrauma.Items.Components
msg.WriteByte((byte)Connections.Count);
foreach (Connection connection in Connections)
{
msg.WriteVariableUInt32((uint)connection.Wires.Count);
foreach (Wire wire in connection.Wires)
// Use ToArray() snapshot for thread-safe iteration
var wiresSnapshot = connection.Wires.ToArray();
msg.WriteVariableUInt32((uint)wiresSnapshot.Length);
foreach (Wire wire in wiresSnapshot)
{
msg.WriteUInt16(wire?.Item == null ? (ushort)0 : wire.Item.ID);
}
}
msg.WriteUInt16((ushort)DisconnectedWires.Count);
foreach (Wire disconnectedWire in DisconnectedWires)
// Use ToList() snapshot for thread-safe iteration
var disconnectedSnapshot = DisconnectedWires.ToList();
msg.WriteUInt16((ushort)disconnectedSnapshot.Count);
foreach (Wire disconnectedWire in disconnectedSnapshot)
{
msg.WriteUInt16(disconnectedWire.Item.ID);
}
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/RelayComponent.cs
+4 -2
View File
@@ -2,6 +2,7 @@
using Microsoft.Xna.Framework;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using System.Xml.Linq;
@@ -31,7 +32,8 @@ namespace Barotrauma.Items.Components
private float thirdInverseMax = 0, loadEqnConstant = 0;
private static readonly Dictionary<string, string> connectionPairs = new Dictionary<string, string>
// Thread-safe immutable dictionary for connection pairs (read-only after initialization)
private static readonly ImmutableDictionary<string, string> connectionPairs = new Dictionary<string, string>
{
{ "power_in", "power_out"},
{ "signal_in", "signal_out" },
@@ -40,7 +42,7 @@ namespace Barotrauma.Items.Components
{ "signal_in3", "signal_out3" },
{ "signal_in4", "signal_out4" },
{ "signal_in5", "signal_out5" }
};
}.ToImmutableDictionary();
protected override PowerPriority Priority { get { return PowerPriority.Relay; } }
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/WifiComponent.cs
+9 -6
View File
@@ -1,6 +1,7 @@
using Barotrauma.Networking;
using Microsoft.Xna.Framework;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
@@ -10,7 +11,8 @@ namespace Barotrauma.Items.Components
{
partial class WifiComponent : ItemComponent, IServerSerializable, IClientSerializable
{
private static readonly List<WifiComponent> list = new List<WifiComponent>();
private static readonly ConcurrentDictionary<WifiComponent, byte> _wifiDict = new ConcurrentDictionary<WifiComponent, byte>();
private static IEnumerable<WifiComponent> AllWifiComponents => _wifiDict.Keys;
const int ChannelMemorySize = 10;
@@ -111,7 +113,7 @@ namespace Barotrauma.Items.Components
public WifiComponent(Item item, ContentXElement element)
: base (item, element)
{
list.Add(this);
_wifiDict.TryAdd(this, 0);
IsActive = true;
}
@@ -156,7 +158,7 @@ namespace Barotrauma.Items.Components
/// </summary>
public IEnumerable<WifiComponent> GetReceiversInRange()
{
return list.Where(w => w != this && w.CanReceive(this));
return AllWifiComponents.Where(w => w != this && w.CanReceive(this));
}
public bool CanReceive(WifiComponent sender)
@@ -185,7 +187,7 @@ namespace Barotrauma.Items.Components
/// </summary>
public IEnumerable<WifiComponent> GetTransmittersInRange()
{
return list.Where(w => w != this && w.CanTransmit(this));
return AllWifiComponents.Where(w => w != this && w.CanTransmit(this));
}
public bool CanTransmit(WifiComponent sender)
@@ -275,7 +277,8 @@ namespace Barotrauma.Items.Components
if (signal.source != null)
{
foreach (Connection receiver in wifiComp.item.LastSentSignalRecipients)
// Use ToList() snapshot for thread-safe iteration
foreach (Connection receiver in wifiComp.item.LastSentSignalRecipients.ToList())
{
if (!signal.source.LastSentSignalRecipients.Contains(receiver))
{
@@ -366,7 +369,7 @@ namespace Barotrauma.Items.Components
protected override void RemoveComponentSpecific()
{
base.RemoveComponentSpecific();
list.Remove(this);
_wifiDict.TryRemove(this, out _);
}
public override XElement Save(XElement parentElement)
Barotrauma/BarotraumaShared/SharedSource/Items/Components/Signal/Wire.cs
+2 -1
View File
@@ -250,7 +250,8 @@ namespace Barotrauma.Items.Components
{
if (connections[0] != null && connections[1] != null)
{
foreach (ItemComponent ic in item.Components)
// Use ToArray() snapshot for thread-safe iteration
foreach (ItemComponent ic in item.Components.ToArray())
{
if (ic == this) { continue; }