#include "student.h"

#define PATH ".phys_socket"
#define LPATH ".link_socket"

int PSOCK_FD, LSOCK_FD;

void do_something(void)
{
   PollSOcket(LSOCK_FD, PSOCK_FD, NULL);
}

void main(int argc, char *argv[])
{
   int tmp_fd1;

   if((LSOCK_FD = CreateUnixClientSocket(LPATH)) < 0)
   {
      fprintf(stderr, "Can't create unix client socket\n");
      exit(1);
   }
   
   if((tmp_fd1 = CreateUnixServerSocket(PATH) < 0)
   {
      fprintf(stderr, "Can't create unix server socket\n");
      exit(1);
   }

   switch(fork())
   {
      case -1: fprintf(stderr, "Fork failed\n");
      case  0: close(PSOCK_FD);
               close(LSOCK_FD);
               execv("./physical_layer", argv);
               exit(1);
      default: if((PSOCK_FD = AcceptConnection(tmp_fd1)) < 0
               {
                   fprintf(stderr, "Can't accept unix client signal socket\n");
                   exit(1);
               }

      do_something();
      exit(1);
   }
}