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avoid potencial null ref

master
UbitUmarov 2020-05-26 15:16:37 +01:00
parent d2dbe3f4d0
commit 182b266ec4
1 changed files with 23 additions and 13 deletions
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16
OpenSim/Region/Framework/Scenes/Scene.cs
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@ -3984,7 +3984,7 @@ namespace OpenSim.Region.Framework.Scenes
// We need to ensure that we are not already removing the scene presence before we ask it not to be
// closed.
if (sp != null && sp.IsChildAgent
if (sp != null && !sp.IsDeleted && sp.IsChildAgent
&& (sp.LifecycleState == ScenePresenceState.Running
|| sp.LifecycleState == ScenePresenceState.PreRemove))
{
@ -4033,10 +4033,12 @@ namespace OpenSim.Region.Framework.Scenes
const int pollInterval = 1000;
int pollsLeft = polls;
while (sp.LifecycleState == ScenePresenceState.Removing && pollsLeft-- > 0)
try
{
while (!sp.IsDeleted && sp.LifecycleState == ScenePresenceState.Removing && pollsLeft-- > 0)
Thread.Sleep(pollInterval);
if (sp.LifecycleState == ScenePresenceState.Removing)
if (!sp.IsDeleted && sp.LifecycleState == ScenePresenceState.Removing)
{
m_log.WarnFormat(
"[SCENE]: Agent {0} in {1} was still being removed after {2}s. Aborting NewUserConnection.",
@ -4051,10 +4053,18 @@ namespace OpenSim.Region.Framework.Scenes
sp.Name, Name, polls * pollInterval / 1000);
}
}
catch
{
sp = null;
}
}
// TODO: can we remove this lock?
lock (m_newUserConnLock)
{
if(sp != null && sp.IsDeleted)
sp = null;
if (sp != null && !sp.IsChildAgent)
{
// We have a root agent. Is it in transit?