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reduce some useless array copies

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UbitUmarov
2019-06-09 20:15:36 +01:00
parent 41e2379f97
commit 9ff7601214
6 changed files with 31 additions and 27 deletions
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19
OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
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@@ -2886,7 +2886,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
18 // ID (high frequency bigendian)
};
public void SendXferPacket(ulong xferID, uint packet, byte[] payload, bool isTaskInventory)
public void SendXferPacket(ulong xferID, uint packet,
byte[] XferData, int XferDataOffset, int XferDatapktLen, bool isTaskInventory)
{
UDPPacketBuffer buf = m_udpServer.GetNewUDPBuffer(m_udpClient.RemoteEndPoint);
byte[] data = buf.Data;
@@ -2896,7 +2897,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
Utils.UInt64ToBytesSafepos(xferID, data, 7); // 15
Utils.UIntToBytesSafepos(packet, data, 15); // 19
int len = payload.Length;
int len = XferDatapktLen;
if (XferDataOffset == 0) // first packet needs to send the total xfer data len
len += 4;
if (len > LLUDPServer.MAXPAYLOAD) // should never happen
len = LLUDPServer.MAXPAYLOAD;
if (len == 0)
@@ -2908,7 +2913,15 @@ namespace OpenSim.Region.ClientStack.LindenUDP
{
data[19] = (byte)len;
data[20] = (byte)(len >> 8);
Buffer.BlockCopy(payload, 0, data, 21, len);
if(XferDataOffset == 0)
{
// need to send total xfer data len
Utils.IntToBytesSafepos(XferData.Length, data, 21);
if (XferDatapktLen > 0)
Buffer.BlockCopy(XferData, XferDataOffset, data, 25, XferDatapktLen);
}
else
Buffer.BlockCopy(XferData, XferDataOffset, data, 21, XferDatapktLen);
}
buf.DataLength = 21 + len;