How to recursively accept data from Python server ?

[Utk]

Hello!
I'm trying to establish a connection between a python server and 
a d client. The data is been transferred properly only once and 
then the d client doesn't wait for any further data and returns 
an error ```Socket.ERROR``` and exists and doesn't wait for 
further incoming data from the Python server. From Python, the 
data is been sent whenever the user sends a request but instead 
of waiting for incoming requests the D client just accepts the 
data 1st time and then throws an error and exits.
The code snippet is as below:
```
bool get_req_from_socket(Socket socket) {

     ubyte[] rawTrHeader;
     ubyte[] buffer;

     writeln("Waiting for data from socket");
     while (rawTrHeader.length < 16) {
       import std.string: format;

       buffer.length = 16 - rawTrHeader.length;
       auto ret = socket.receive(buffer);
       uvm_info("SOCKET", format("Received %d bytes from socket", 
ret),
	       UVM_DEBUG);
       if (ret == Socket.ERROR)
	uvm_fatal("SOCKET", "Error receiving data from socket");
       if (ret == 0)
	uvm_fatal("SOCKET", "Got insufficient bytes for TrHeader");
       // now slice the buffer to get the part...
       rawTrHeader ~= buffer[0 .. ret];
     }
     ...
     ...
   }

```
This is the function (infinitely called while it returns 
```true```) that accepts the data and returns ```true``` or 
```false``` depending on if data is received or not respectively.
The error I'm receiving is:
```
Waiting for data from socket
UVM_INFO ../testbench/apb.d(375) @ 130000: reporter@@apb_seq 
[SOCKET] Received -1 bytes from socket
UVM_FATAL ../testbench/apb.d(378) @ 130000: reporter@@apb_seq 
[SOCKET] Error receiving data from socket
```
Please help me to resolve this issue.