public int Receive(byte[] buffer, int flags)
{
if (LibZmq.zmq_msg_init_size(_message, buffer.Length) == -1)
{
return(-1);
}
int bytesReceived = RetryIfInterrupted(() => LibZmq.zmq_recvmsg(SocketHandle, _message, flags));
if (bytesReceived == 0 && LibZmq.MajorVersion < 3)
{
// 0MQ 2.x does not return number of bytes received
bytesReceived = LibZmq.zmq_msg_size(_message);
}
if (bytesReceived > 0)
{
Marshal.Copy(LibZmq.zmq_msg_data(_message), buffer, 0, bytesReceived);
}
if (LibZmq.zmq_msg_close(_message) == -1)
{
return(-1);
}
return(bytesReceived);
}
public int Forward(IntPtr destinationHandle)
{
if (LibZmq.zmq_msg_init(_message) == -1)
{
return(-1);
}
int receiveMore;
int bytesSent;
do
{
if (LibZmq.zmq_recvmsg(SocketHandle, _message, 0) == -1)
{
return(-1);
}
if (GetReceiveMore(out receiveMore) == -1)
{
return(-1);
}
if ((bytesSent = LibZmq.zmq_sendmsg(destinationHandle, _message, receiveMore == 1 ? (int)SocketFlags.SendMore : 0)) == -1)
{
return(-1);
}
}while (receiveMore == 1);
if (LibZmq.zmq_msg_close(_message) == -1)
{
return(-1);
}
return(bytesSent);
}
public byte[] Receive(byte[] buffer, int flags, out int size)
{
size = -1;
if (LibZmq.zmq_msg_init(_message) == -1)
{
return(buffer);
}
int bytesReceived = RetryIfInterrupted(() => LibZmq.zmq_recvmsg(SocketHandle, _message, flags));
if (bytesReceived >= 0)
{
if (bytesReceived == 0 && LibZmq.MajorVersion < 3)
{
// 0MQ 2.x does not return number of bytes received
bytesReceived = LibZmq.zmq_msg_size(_message);
}
size = bytesReceived;
if (buffer == null || size > buffer.Length)
{
buffer = new byte[size];
}
Marshal.Copy(LibZmq.zmq_msg_data(_message), buffer, 0, size);
}
if (LibZmq.zmq_msg_close(_message) == -1)
{
size = -1;
}
return(buffer);
}