static bool SendMsg(ZSocket sock, ZMessage msg, out ZError error)
{
error = ZError.None;
foreach (ZFrame frame in msg)
{
while (-1 == zmq.msg_send(frame.Ptr, sock.SocketPtr, (int)(/* ZSocketFlags.DontWait | */ ZSocketFlags.More)))
{
error = ZError.GetLastErr();
if (error == ZError.EINTR)
{
error = default(ZError);
continue;
}
/* if (error == ZError.EAGAIN)
* {
* error = default(ZError);
* Thread.Sleep(1);
*
* continue;
* } */
return(false);
}
}
msg.Dismiss();
return(true);
}
/// <summary>
/// Forwards requests from the frontend socket to the backend socket.
/// </summary>
protected override bool FrontendHandler(ZSocket sock, out ZMessage message, out ZError error)
{
error = default(ZError);
message = null;
// receiving scope
// STREAM: get 2 frames, identity and body
ZMessage incoming = null;
// IPAddress address = null;
string address;
if (!ReceiveMsg(sock, ref incoming, out address, out error))
{
return(false);
}
// sending scope
// DEALER: forward
using (incoming)
{
if (incoming[1].Length == 0)
{
return(true); // Ignore the Empty one
}
// Prepend empty delimiter between Identity frame and Data frame
incoming.Insert(1, new ZFrame());
// Prepend Peer-Address
incoming.Insert(2, new ZFrame(address));
try
{
if (!BackendSocket.Send(incoming, /* ZSocketFlags.DontWait, */ out error))
{
return(false);
}
}
finally {
incoming.Dismiss();
}
}
return(true);
}
static bool SendMsg(ZSocket sock, ZMessage msg, out ZError error)
{
error = ZError.None;
try
{
foreach (ZFrame frame in msg)
{
while (-1 == zmq.msg_send(frame.Ptr, sock.SocketPtr, (int)(/* ZSocketFlags.DontWait | */ ZSocketFlags.More)))
{
error = ZError.GetLastErr();
if (error == ZError.EINTR)
{
error = default(ZError);
continue;
}
/* if (error == ZError.EAGAIN)
{
error = default(ZError);
Thread.Sleep(1);
continue;
} */
return false;
}
}
}
finally
{
msg.Dismiss();
}
return true;
}
