* first tries with a process intead of thread for rx_arping
* Moving delete pointer of udp socket to stopReciever,so rx_arping can only be set when udp socket is closed
* refactoring and formatting
* unused variable processId
* ignore sigchild to prevent zombie from child processes being killed
* test for rx_arping
* arping ip and interface from client interface
* apring thread added to thread ids
* clean code for thread for arping
* removing the assumption that udpip1 fill be updated along with udpip2
* review, replacing syscall(sys_gettid) with gettid()