private bool DataFromServerToClient(CAsyncServiceHandler sender, ushort reqId, CUQueue qData)
{
bool processed = false;
switch (reqId)
{
case CStreamSerializationHelper.idReadDataFromServerToClient:
if (qData.GetSize() > 0)
{
lock (m_cs)
{
CStreamSerializationHelper.Write(m_s, qData);
if (Progress != null)
{
Progress.Invoke(this, (ulong)m_s.Position);
}
}
qData.SetSize(0);
processed = true;
}
break;
default:
break;
}
return(processed);
}
/// <summary>
/// Read data from a source stream at server side and send its content onto a client
/// </summary>
/// <param name="PeerHandle">A peer socket handle to represent a client</param>
/// <param name="source">A stream to a source file or other object</param>
/// <returns>The number of data sent in bytes</returns>
public static ulong ReadDataFromServerToClient(ulong PeerHandle, Stream source)
{
uint res;
ulong sent = 0;
using (CScopeUQueue su = new CScopeUQueue())
{
CUQueue q = su.UQueue;
uint read = CStreamSerializationHelper.Read(source, q);
while (read != 0)
{
unsafe
{
fixed(byte *p = q.m_bytes)
{
res = ServerCoreLoader.SendReturnData(PeerHandle, CStreamSerializationHelper.idReadDataFromServerToClient, read, p);
}
}
if (res == CSocketPeer.REQUEST_CANCELED || res == CSocketPeer.SOCKET_NOT_FOUND)
{
break;
}
sent += res;
q.SetSize(0);
read = CStreamSerializationHelper.Read(source, q);
}
}
return(sent);
}
private Stream m_s; //protected by m_cs
private ulong SendDataFromClientToServer()
{
if (m_ash.AttachedClientSocket.BytesInSendingBuffer > CStreamSerializationHelper.STREAM_CHUNK_SIZE)
{
return(0);
}
ulong send = 0;
using (CScopeUQueue su = new CScopeUQueue())
{
if (m_s == null)
{
return(0);
}
uint read = CStreamSerializationHelper.Read(m_s, su.UQueue);
while (read > 0)
{
bool ok = m_ash.SendRequest(CStreamSerializationHelper.idWriteDataFromClientToServer, su.UQueue.m_bytes, read, (ar) =>
{
SendDataFromClientToServer();
});
if (Progress != null)
{
Progress.Invoke(this, (ulong)m_s.Position);
}
if (!ok)
{
m_s = null;
break;
}
send += read;
if (m_ash.AttachedClientSocket.BytesInSendingBuffer > 10 * CStreamSerializationHelper.STREAM_CHUNK_SIZE)
{
break;
}
read = CStreamSerializationHelper.Read(m_s, su.UQueue);
if (read == 0)
{
if (!m_ash.SendRequest(CStreamSerializationHelper.idUploadCompleted, (dc) =>
{
lock (m_cs)
{
if (Progress != null)
{
Progress.Invoke(this, (ulong)m_s.Position);
}
m_s = null;
}
}))
{
m_s = null;
}
}
}
}
return(send);
}
/// <summary>
/// Write data from client to this server
/// </summary>
/// <param name="q">A memory queue containing data from a client</param>
/// <param name="receiver">A stream at server side to receive data from a client</param>
public static void WriteDataFromClientToServer(CUQueue q, Stream receiver)
{
CStreamSerializationHelper.Write(receiver, q);
}