What is Contiki Operating System and Why is uIP Special

          Are you searching for the clear depiction about the Contiki operating system? Join hands with our experts to get to know about the significance of Contiki OS and the deployment of uIP.

Significance of Contiki OS

          As first, Contiki is considered as the open source, multi-tasking and highly portable operating system mainly for the wireless sensor networks and memory efficient networked embedded systems.

Utilization of uIP

         In general, the uIP is denoted as the small RFC-compliant TCP and IP stack through acquiring the possibilities based on Contiki to communicate through the internet. While the application is running on top of uIP, then it will execute the C functions thus uIP is considered as the special process.

         For instance, we have highlighted the sample source code which is deployed to open the new connection to the IP address for the performance based on message transmission.

struct example2_state {

   enum {WELCOME_SENT, WELCOME_ACKED} state;

};

void example2_init(void) {

   uip_listen(HTONS(2345));

}

void example2_app(void) {

   struct example2_state *s;

   s = (struct example2_state *)uip_conn->appstate;

   if(uip_connected()) {

      s->state = WELCOME_SENT;

      uip_send(“Welcome!\n”, 9);

      return;

   }

   if(uip_acked() && s->state == WELCOME_SENT) {

      s->state = WELCOME_ACKED;

   }

   if(uip_newdata()) {

      uip_send(“ok\n”, 3);

   }

   if(uip_rexmit()) {

      switch(s->state) {

      case WELCOME_SENT:

         uip_send(“Welcome!\n”, 9);

         break;

      case WELCOME_ACKED:

         uip_send(“ok\n”, 3);

         break;

      }

   }

}

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