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Refactored "known child region" in ScenePresence. There were 4 different 

ways to access the list/dictionary of child regions and locking was
inconsistent. There are now public properties which enforce locks.
Callers are no longer required to create new copies of lists.
remove-scene-viewer
Dan Lake 2011-10-06 22:47:33 -07:00
parent 4c812884be
commit 4748c19bdb
5 changed files with 79 additions and 89 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
View File

@ -351,7 +351,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
// the avatar.Close below will clear the child region list. We need this below for (possibly)
// closing the child agents, so save it here (we need a copy as it is Clear()-ed).
//List<ulong> childRegions = new List<ulong>(avatar.GetKnownRegionList());
//List<ulong> childRegions = avatar.KnownRegionHandles;
// Compared to ScenePresence.CrossToNewRegion(), there's no obvious code to handle a teleport
// failure at this point (unlike a border crossing failure). So perhaps this can never fail
// once we reach here...

19
OpenSim/Region/Framework/Scenes/Scene.cs
View File

@ -1109,9 +1109,8 @@ namespace OpenSim.Region.Framework.Scenes
// Kick all ROOT agents with the message, 'The simulator is going down'
ForEachScenePresence(delegate(ScenePresence avatar)
{
if (avatar.KnownChildRegionHandles.Contains(RegionInfo.RegionHandle))
avatar.KnownChildRegionHandles.Remove(RegionInfo.RegionHandle);
{
avatar.RemoveNeighbourRegion(RegionInfo.RegionHandle);
if (!avatar.IsChildAgent)
avatar.ControllingClient.Kick("The simulator is going down.");
@ -3103,14 +3102,8 @@ namespace OpenSim.Region.Framework.Scenes
avatar.Scene.NeedSceneCacheClear(avatar.UUID);
if (closeChildAgents && !avatar.IsChildAgent)
{
//List<ulong> childknownRegions = new List<ulong>();
//List<ulong> ckn = avatar.KnownChildRegionHandles;
//for (int i = 0; i < ckn.Count; i++)
//{
// childknownRegions.Add(ckn[i]);
//}
List<ulong> regions = new List<ulong>(avatar.KnownChildRegionHandles);
{
List<ulong> regions = avatar.KnownRegionHandles;
regions.Remove(RegionInfo.RegionHandle);
m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
}
@ -3181,7 +3174,7 @@ namespace OpenSim.Region.Framework.Scenes
{
for (int i = 0; i < regionslst.Count; i++)
{
av.KnownChildRegionHandles.Remove(regionslst[i]);
av.RemoveNeighbourRegion(regionslst[i]);
}
}
}
@ -3674,7 +3667,7 @@ namespace OpenSim.Region.Framework.Scenes
if (RegionSecret == loggingOffUser.ControllingClient.SecureSessionId || (parsedsecret && RegionSecret == localRegionSecret))
{
m_sceneGridService.SendCloseChildAgentConnections(loggingOffUser.UUID, new List<ulong>(loggingOffUser.KnownRegions.Keys));
m_sceneGridService.SendCloseChildAgentConnections(loggingOffUser.UUID, loggingOffUser.KnownRegionHandles);
loggingOffUser.ControllingClient.Kick(message);
// Give them a second to receive the message!
Thread.Sleep(1000);

2
OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
View File

@ -229,7 +229,7 @@ namespace OpenSim.Region.Framework.Scenes
{
uint x = 0, y = 0;
List<string> simulatorList = new List<string>();
foreach (ulong regionHandle in presence.KnownChildRegionHandles)
foreach (ulong regionHandle in presence.KnownRegionHandles)
{
if (regionHandle != m_regionInfo.RegionHandle)
{

134
OpenSim/Region/Framework/Scenes/ScenePresence.cs
View File

@ -219,11 +219,6 @@ namespace OpenSim.Region.Framework.Scenes
}
}
// neighbouring regions we have enabled a child agent in
// holds the seed cap for the child agent in that region
private Dictionary<ulong, string> m_knownChildRegions = new Dictionary<ulong, string>();
/// <summary>
/// Copy of the script states while the agent is in transit. This state may
/// need to be placed back in case of transfer fail.
@ -635,29 +630,6 @@ namespace OpenSim.Region.Framework.Scenes
set { m_health = value; }
}
/// <summary>
/// These are the region handles known by the avatar.
/// </summary>
public List<ulong> KnownChildRegionHandles
{
get
{
if (m_knownChildRegions.Count == 0)
return new List<ulong>();
else
return new List<ulong>(m_knownChildRegions.Keys);
}
}
public Dictionary<ulong, string> KnownRegions
{
get { return m_knownChildRegions; }
set
{
m_knownChildRegions = value;
}
}
private ISceneViewer m_sceneViewer;
public ISceneViewer SceneViewer
@ -1103,7 +1075,11 @@ namespace OpenSim.Region.Framework.Scenes
public void StopFlying()
{
ControllingClient.StopFlying(this);
}
}
// neighbouring regions we have enabled a child agent in
// holds the seed cap for the child agent in that region
private Dictionary<ulong, string> m_knownChildRegions = new Dictionary<ulong, string>();
public void AddNeighbourRegion(ulong regionHandle, string cap)
{
@ -1119,14 +1095,14 @@ namespace OpenSim.Region.Framework.Scenes
}
public void RemoveNeighbourRegion(ulong regionHandle)
{
{
lock (m_knownChildRegions)
{
if (m_knownChildRegions.ContainsKey(regionHandle))
{
m_knownChildRegions.Remove(regionHandle);
//m_log.Debug(" !!! removing known region {0} in {1}. Count = {2}", regionHandle, Scene.RegionInfo.RegionName, m_knownChildRegions.Count);
}
// Checking ContainsKey is redundant as Remove works either way and returns a bool
// This is here to allow the Debug output to be conditional on removal
//if (m_knownChildRegions.ContainsKey(regionHandle))
// m_log.DebugFormat(" !!! removing known region {0} in {1}. Count = {2}", regionHandle, Scene.RegionInfo.RegionName, m_knownChildRegions.Count);
m_knownChildRegions.Remove(regionHandle);
}
}
@ -1137,11 +1113,39 @@ namespace OpenSim.Region.Framework.Scenes
RemoveNeighbourRegion(handle);
Scene.CapsModule.DropChildSeed(UUID, handle);
}
}
public List<ulong> GetKnownRegionList()
{
return new List<ulong>(m_knownChildRegions.Keys);
}
public Dictionary<ulong, string> KnownRegions
{
get
{
lock (m_knownChildRegions)
return new Dictionary<ulong, string>(m_knownChildRegions);
}
set
{
// Replacing the reference is atomic but we still need to lock on
// the original dictionary object which may be in use elsewhere
lock (m_knownChildRegions)
m_knownChildRegions = value;
}
}
public List<ulong> KnownRegionHandles
{
get
{
return new List<ulong>(KnownRegions.Keys);
}
}
public int KnownRegionCount
{
get
{
lock (m_knownChildRegions)
return m_knownChildRegions.Count;
}
}
#endregion
@ -2730,7 +2734,7 @@ namespace OpenSim.Region.Framework.Scenes
// Throttles
float multiplier = 1;
int childRegions = m_knownChildRegions.Count;
int childRegions = KnownRegionCount;
if (childRegions != 0)
multiplier = 1f / childRegions;
@ -2982,30 +2986,28 @@ namespace OpenSim.Region.Framework.Scenes
/// <returns></returns>
public void CloseChildAgents(uint newRegionX, uint newRegionY)
{
List<ulong> byebyeRegions = new List<ulong>();
List<ulong> byebyeRegions = new List<ulong>();
List<ulong> knownRegions = KnownRegionHandles;
m_log.DebugFormat(
"[SCENE PRESENCE]: Closing child agents. Checking {0} regions in {1}",
m_knownChildRegions.Keys.Count, Scene.RegionInfo.RegionName);
//DumpKnownRegions();
lock (m_knownChildRegions)
knownRegions.Count, Scene.RegionInfo.RegionName);
//DumpKnownRegions();
foreach (ulong handle in knownRegions)
{
foreach (ulong handle in m_knownChildRegions.Keys)
// Don't close the agent on this region yet
if (handle != Scene.RegionInfo.RegionHandle)
{
// Don't close the agent on this region yet
if (handle != Scene.RegionInfo.RegionHandle)
{
uint x, y;
Utils.LongToUInts(handle, out x, out y);
x = x / Constants.RegionSize;
y = y / Constants.RegionSize;
uint x, y;
Utils.LongToUInts(handle, out x, out y);
x = x / Constants.RegionSize;
y = y / Constants.RegionSize;
//m_log.Debug("---> x: " + x + "; newx:" + newRegionX + "; Abs:" + (int)Math.Abs((int)(x - newRegionX)));
//m_log.Debug("---> y: " + y + "; newy:" + newRegionY + "; Abs:" + (int)Math.Abs((int)(y - newRegionY)));
if (Util.IsOutsideView(DrawDistance, x, newRegionX, y, newRegionY))
{
byebyeRegions.Add(handle);
}
//m_log.Debug("---> x: " + x + "; newx:" + newRegionX + "; Abs:" + (int)Math.Abs((int)(x - newRegionX)));
//m_log.Debug("---> y: " + y + "; newy:" + newRegionY + "; Abs:" + (int)Math.Abs((int)(y - newRegionY)));
if (Util.IsOutsideView(DrawDistance, x, newRegionX, y, newRegionY))
{
byebyeRegions.Add(handle);
}
}
}
@ -3123,7 +3125,7 @@ namespace OpenSim.Region.Framework.Scenes
// Throttles
float multiplier = 1;
int childRegions = m_knownChildRegions.Count;
int childRegions = KnownRegionCount;
if (childRegions != 0)
multiplier = 1f / childRegions;
@ -3432,12 +3434,10 @@ namespace OpenSim.Region.Framework.Scenes
public void Close()
{
if (!IsChildAgent)
m_scene.AttachmentsModule.DeleteAttachmentsFromScene(this, false);
lock (m_knownChildRegions)
{
m_knownChildRegions.Clear();
}
m_scene.AttachmentsModule.DeleteAttachmentsFromScene(this, false);
// Clear known regions
KnownRegions = new Dictionary<ulong, string>();
lock (m_reprioritization_timer)
{

11
OpenSim/Region/Framework/Scenes/Tests/ScenePresenceAgentTests.cs
View File

@ -215,11 +215,9 @@ namespace OpenSim.Region.Framework.Scenes.Tests
string cap = presence.ControllingClient.RequestClientInfo().CapsPath;
presence.AddNeighbourRegion(region2, cap);
presence.AddNeighbourRegion(region3, cap);
List<ulong> neighbours = presence.GetKnownRegionList();
Assert.That(neighbours.Count, Is.EqualTo(2));
presence.AddNeighbourRegion(region3, cap);
Assert.That(presence.KnownRegionCount, Is.EqualTo(2));
}
[Test]
@ -230,8 +228,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
ScenePresence presence = scene.GetScenePresence(agent1);
presence.RemoveNeighbourRegion(region3);
List<ulong> neighbours = presence.GetKnownRegionList();
Assert.That(neighbours.Count,Is.EqualTo(1));
Assert.That(presence.KnownRegionCount,Is.EqualTo(1));
/*
presence.MakeChildAgent;
presence.MakeRootAgent;