private void RequestFolder(DescendentRequest dr)
{
Packet packet = InvPacketHelper.FetchInventoryDescendents(
dr.FolderID
, dr.FetchFolders
, dr.FetchItems);
htFolderDownloadStatus[dr.FolderID] = dr;
slClient.Network.SendPacket(packet);
}
public void InventoryDescendentsHandler(Packet packet, Simulator simulator)
{
InventoryDescendentsPacket reply = (InventoryDescendentsPacket)packet;
LastPacketRecieved = Helpers.GetUnixTime();
InventoryItem invItem;
InventoryFolder invFolder;
LLUUID uuidFolderID = new LLUUID();
int iDescendentsExpected = int.MaxValue;
int iDescendentsReceivedThisBlock = 0;
foreach (InventoryDescendentsPacket.ItemDataBlock itemBlock in reply.ItemData)
{
// There is always an item block, even if there isn't any items
// the "filler" block will not have a name
if (itemBlock.Name.Length != 0)
{
iDescendentsReceivedThisBlock++;
invItem = new InventoryItem(this, itemBlock);
InventoryFolder ifolder = (InventoryFolder)htFoldersByUUID[invItem.FolderID];
if (ifolder.alContents.Contains(invItem) == false)
{
if ((invItem.InvType == 7) && (invItem.Type == Asset.ASSET_TYPE_NOTECARD))
{
InventoryItem temp = new InventoryNotecard(this, invItem);
invItem = temp;
}
if ((invItem.InvType == 0) && (invItem.Type == Asset.ASSET_TYPE_IMAGE))
{
InventoryItem temp = new InventoryImage(this, invItem);
invItem = temp;
}
ifolder.alContents.Add(invItem);
}
}
}
foreach (InventoryDescendentsPacket.FolderDataBlock folderBlock in reply.FolderData)
{
String name = System.Text.Encoding.UTF8.GetString(folderBlock.Name).Trim().Replace("\0", "");
LLUUID folderid = folderBlock.FolderID;
LLUUID parentid = folderBlock.ParentID;
sbyte type = folderBlock.Type;
// There is always an folder block, even if there isn't any folders
// the "filler" block will not have a name
if (folderBlock.Name.Length != 0)
{
invFolder = new InventoryFolder(this, name, folderid, parentid);
iDescendentsReceivedThisBlock++;
// Add folder to Parent
InventoryFolder ifolder = (InventoryFolder)htFoldersByUUID[invFolder.ParentID];
if (ifolder.alContents.Contains(invFolder) == false)
{
ifolder.alContents.Add(invFolder);
}
// Add folder to UUID Lookup
htFoldersByUUID[invFolder.FolderID] = invFolder;
// It's not the root, should be safe to "recurse"
if (!invFolder.FolderID.Equals(uuidRootFolder))
{
bool alreadyQueued = false;
foreach (DescendentRequest dr in alFolderRequestQueue)
{
if (dr.FolderID == invFolder.FolderID)
{
alreadyQueued = true;
break;
}
}
if (!alreadyQueued)
{
alFolderRequestQueue.Add(new DescendentRequest(invFolder.FolderID));
}
}
}
}
// Check how many descendents we're actually supposed to receive
iDescendentsExpected = reply.AgentData.Descendents;
uuidFolderID = reply.AgentData.FolderID;
// Update download status for this folder
if (iDescendentsReceivedThisBlock >= iDescendentsExpected)
{
// We received all the descendents we're expecting for this folder
// in this packet, so go ahead and remove folder from status list.
htFolderDownloadStatus.Remove(uuidFolderID);
}
else
{
// This one packet didn't have all the descendents we're expecting
// so update the total we're expecting, and update the total downloaded
DescendentRequest dr = (DescendentRequest)htFolderDownloadStatus[uuidFolderID];
dr.Expected = iDescendentsExpected;
dr.Received += iDescendentsReceivedThisBlock;
dr.LastReceived = Helpers.GetUnixTime();
if (dr.Received >= dr.Expected)
{
// Looks like after updating, we have all the descendents,
// remove from folder status.
htFolderDownloadStatus.Remove(uuidFolderID);
}
else
{
htFolderDownloadStatus[uuidFolderID] = dr;
// Console.WriteLine( uuidFolderID + " is expecting " + (iDescendentsExpected - iStatus[1]) + " more packets." );
}
}
}
public void DownloadInventory()
{
resetFoldersByUUID();
if (htFolderDownloadStatus == null)
{
// Create status table
htFolderDownloadStatus = new Dictionary <LLUUID, DescendentRequest>();
}
else
{
if (htFolderDownloadStatus.Count != 0)
{
throw new Exception("Inventory Download requested while previous download in progress.");
}
}
if (alFolderRequestQueue == null)
{
alFolderRequestQueue = new List <DescendentRequest>();
}
// Set last packet received to now, just so out time-out timer works
LastPacketRecieved = Helpers.GetUnixTime();
// Send Packet requesting the root Folder,
// this should recurse through all folders
RequestFolder(new DescendentRequest(uuidRootFolder));
while ((htFolderDownloadStatus.Count > 0) || (alFolderRequestQueue.Count > 0))
{
if (htFolderDownloadStatus.Count == 0)
{
DescendentRequest dr = alFolderRequestQueue[0];
alFolderRequestQueue.RemoveAt(0);
RequestFolder(dr);
}
if ((Helpers.GetUnixTime() - LastPacketRecieved) > 10)
{
Console.WriteLine("Time-out while waiting for packets (" + (Helpers.GetUnixTime() - LastPacketRecieved) + " seconds since last packet)");
Console.WriteLine("Current Status:");
// have to make a seperate list otherwise we run into modifying the original array
// while still enumerating it.
List <DescendentRequest> alRestartList = new List <DescendentRequest>();
//if (htFolderDownloadStatus[0] != null)
//{
// Console.WriteLine(htFolderDownloadStatus[0].GetType());
//}
foreach (DescendentRequest dr in htFolderDownloadStatus.Values)
{
Console.WriteLine(dr.FolderID + " " + dr.Expected + " / " + dr.Received + " / " + dr.LastReceived);
alRestartList.Add(dr);
}
LastPacketRecieved = Helpers.GetUnixTime();
foreach (DescendentRequest dr in alRestartList)
{
RequestFolder(dr);
}
}
slClient.Tick();
}
}
private void RequestFolder(DescendentRequest dr)
{
Packet packet = InvPacketHelper.FetchInventoryDescendents(
dr.FolderID
, dr.FetchFolders
, dr.FetchItems);
htFolderDownloadStatus[dr.FolderID] = dr;
slClient.Network.SendPacket(packet);
}