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* Adds AbortXfer to the ClientAPI mix

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* Adds an item that checks to see if the top request has been there for longer then 30 seconds without an update and sends an AbortXfer if it encounters one.   This allows the client to cancel the Xfer on it's side so you can re-select the prim and get the inventory when it fails the first time.
* Some interesting locking...    Using NewFiles to lock the rest of them.   We'll see how that goes.
* The goal of this is to ensure that Xfers are restartable when they fail.  The client will not do that on it's own.
This commit is contained in:
Teravus Ovares (Dan Olivares)
2010-12-21 19:15:44 -05:00
parent 1c3e77b728
commit 25ecd62b1f
9 changed files with 106 additions and 4 deletions
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70
OpenSim/Region/CoreModules/Agent/Xfer/XferModule.cs
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@@ -97,6 +97,7 @@ namespace OpenSim.Region.CoreModules.Agent.Xfer
NewFiles.Add(fileName, data);
}
}
string filename = string.Empty;
if (Requests.ContainsKey(fileName))
{
@@ -113,6 +114,7 @@ namespace OpenSim.Region.CoreModules.Agent.Xfer
{
client.OnRequestXfer += RequestXfer;
client.OnConfirmXfer += AckPacket;
client.OnAbortXfer += AbortXfer;
}
/// <summary>
@@ -125,6 +127,17 @@ namespace OpenSim.Region.CoreModules.Agent.Xfer
{
lock (NewFiles)
{
if (RequestTime.Count > 0)
{
TimeSpan ts = new TimeSpan(DateTime.UtcNow.Ticks - RequestTime[0].timeStamp.Ticks);
if (ts.TotalSeconds > 30)
{
ulong zxferid = RequestTime[0].xferID;
remoteClient.SendAbortXferPacket(zxferid);
RemoveXferData(zxferid);
}
}
if (NewFiles.ContainsKey(fileName))
{
if (!Transfers.ContainsKey(xferID))
@@ -137,7 +150,7 @@ namespace OpenSim.Region.CoreModules.Agent.Xfer
if (transaction.StartSend())
{
Transfers.Remove(xferID);
RemoveXferData(xferID);
}
}
}
@@ -150,6 +163,8 @@ namespace OpenSim.Region.CoreModules.Agent.Xfer
{
Requests.Remove(RequestTime[0].fileName);
RequestTime.RemoveAt(0);
// Do we want to abort this here?
//remoteClient.SendAbortXfer(xferID);
}
}
@@ -165,22 +180,69 @@ namespace OpenSim.Region.CoreModules.Agent.Xfer
}
}
}
}
public void AckPacket(IClientAPI remoteClient, ulong xferID, uint packet)
{
if (Transfers.ContainsKey(xferID))
lock (NewFiles) // This is actually to lock Transfers
{
if (Transfers[xferID].AckPacket(packet))
if (Transfers.ContainsKey(xferID))
{
XferDownLoad dl = Transfers[xferID];
if (Transfers[xferID].AckPacket(packet))
{
Transfers.Remove(xferID);
{
RemoveXferData(xferID);
}
}
else
{
if (Requests.ContainsKey(dl.FileName))
{
//
XferRequest req = Requests[dl.FileName];
req.timeStamp = DateTime.UtcNow;
Requests[dl.FileName] = req;
}
}
}
}
}
private void RemoveXferData(ulong xferID)
{
// NewFiles must be locked!
if (Transfers.ContainsKey(xferID))
{
// Qualifier distinguishes between the OpenMetaverse version and the nested class
XferModule.XferDownLoad xferItem = Transfers[xferID];
//string filename = xferItem.FileName;
Transfers.Remove(xferID);
xferItem.Data = new byte[0]; // Clear the data
xferItem.DataPointer = 0;
// If the abort comes in
if (NewFiles.ContainsKey(xferItem.FileName))
NewFiles.Remove(xferItem.FileName);
if (Requests.ContainsKey(xferItem.FileName))
Requests.Remove(xferItem.FileName);
}
}
public void AbortXfer(IClientAPI remoteClient, ulong xferID)
{
lock (NewFiles)
{
RemoveXferData(xferID);
}
}
#region Nested type: XferDownLoad
public class XferDownLoad