# Communication between debugger and VSCode
Server is an application that accepts commands through the socket and executes them in debugger

Command `ark --debugger --debugger-port=<port_number> --debugger-library-path=<path_to_debugger_library>`  launches debug server

`--debugger-library-path` is an optional parameter

VSCode provides us client interface and sending commands to the debugger with socket

### Description of debug starting process
Server side
* Server creates a TCP socket for communication with client
* Firstly server accepts a test client
* Secondly server accepts a real client and debug session begins

Client side
* Client runs a server than waiting for a TCP socket
* It's critical for VSCode to have a debug server initialized at allocated time so we establish a test connection firstly to check it
* We create a test client every 100 milliseconds to check is socket ready for a debug session
* When the connection is established (if it is at the allocated time) test client disconnects and real client connects to server
* If connection was not established at the allocated time the `Can not launch debug server` error will be thrown