Diff: Core/NetServer.h

Revision:

0:0791c1fece8e

diff -r 000000000000 -r 0791c1fece8e Core/NetServer.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/NetServer.h	Tue Sep 18 14:41:24 2012 +0000
@@ -0,0 +1,255 @@
+#ifndef NETSERVER_H
+#define NETSERVER_H
+
+#include "ipv4/lwip/ip_addr.h"
+#include "lwip/netif.h"
+#include "netif/etharp.h"
+#include "iputil.h"
+#include "dns.h"
+#include "mbed.h"
+
+#include <list>
+
+namespace mbed {
+  class TCPItem;
+  class TCPListener;
+  class TCPCallbackListener;
+  class TCPConnection;
+
+  /**
+   * Network main class
+   * provides the basic network features.
+   */
+  class NetServer {
+    public:
+      /**
+       * Returns you the NetServer instance. 
+       * If there is no object it will create a new one.
+       * But it will not initialise it.
+       * Configure the object for DHCP.
+       */
+      static NetServer *create() {
+        if(!NetServer::singleton) {
+          NetServer::singleton = new NetServer();
+        }
+        return NetServer::singleton;
+      }
+
+      /**
+       * Returns you the NetServer instance. 
+       * If there is no object it will create a new one.
+       * But it will not initialise it.
+       * You have to insert ipaddres, netmask and gateway.
+       */
+      inline static NetServer *create(const struct ip_addr &ip, const struct ip_addr &netmask, const struct ip_addr &gateway) {
+        if(!NetServer::singleton) {
+          NetServer::singleton = new NetServer(ip, netmask, gateway);
+        }
+        return NetServer::singleton;
+      }
+      
+      /**
+       * Returns you the NetServer instance. 
+       * If there is no object it will create a new one
+       * and it will initialise it.
+       * A new created object will ever use DHCP and the default MAC address
+       * and default hostname.
+       */
+      inline static NetServer *ready() {
+        if(!NetServer::singleton) {
+          NetServer::singleton = new NetServer();
+        }
+        if(!NetServer::singleton->netif->hwaddr_len) {
+          NetServer::singleton->init();
+          NetServer::singleton->waitUntilReady();
+        }
+        return NetServer::singleton;
+      }
+
+      /**
+       * Returns you the NetServer instance.
+       * Even if there is no one created.
+       * That means use with care and in combination with NetServer::ready().
+       * It is mutch quicker than NetServer::ready().
+       * First call one time NetServer::ready() and then NetServer::get()
+       * and you are save.
+       */
+      inline static NetServer *get() {
+        return NetServer::singleton;
+      }
+
+      /**
+       * Polls one time on the NetServer and all registert Interfaces.
+       * Even if there is no one created.
+       * That means use with care and in combination with NetServer::ready().
+       * It is mutch faster than NetServer::ready()->_poll().
+       * First call one time NetServer::ready() and then NetServer::poll()
+       * and you are save.
+       */
+      inline static void poll() {
+        singleton->_poll();
+      }
+      
+      /**
+       * Default destructor.
+       */
+      ~NetServer();
+      
+      /**
+       * Set MBed IP Address
+       */
+      void setIPAddr(const struct ip_addr &value) { netif->ip_addr = ipaddr = value; }
+      /**
+       * Get MBed IP Address
+       */
+      const struct ip_addr &getIPAddr() { return ipaddr = netif->ip_addr; }
+      
+      /**
+       * Set Netmask
+       */
+      void setNetmask(const struct ip_addr &value) { netif->netmask = netmask = value; }
+      
+      /**
+       * Get Netmask
+       */
+      const struct ip_addr &getNetmask() { return netmask = netif->netmask; }
+
+      /**
+       * Set default Gateway
+       */
+      void setGateway(const struct ip_addr &value) { netif->gw = gateway = value; }
+      
+      /**
+       * Get default Gateway
+       */
+      const struct ip_addr &getGateway() { return gateway = netif->gw; }
+      
+      /**
+       * Set first Domain Name Server
+       */
+      void setDNS1(const struct ip_addr &value) { firstdns = value; dns_setserver(0, &firstdns); }
+      
+      /**
+       * Get first Domain Name Server
+       */
+      const struct ip_addr &getDNS1() { return firstdns = dns_getserver(0); }
+      
+      /**
+       * Set second Domain Name Server
+       */
+      void setDNS2(const struct ip_addr &value) { seconddns = value; dns_setserver(1, &firstdns); }
+      
+      /**
+       * Get second Domain Name Server
+       */
+      const struct ip_addr &getDNS2() { return seconddns = dns_getserver(1); }
+      
+      /**
+       * Set MBed Hostname
+       */
+      void setHostname(const char *value) { hostname = value; }
+      
+      /**
+       * Get MBed Hostname
+       */
+      const char *getHostname() const { return hostname; }
+      
+      /**
+       * Define if DHCP sould be used.
+       * @param value Bool if true dhcp is used else a static ip setting is assumed.
+       */
+      void setUseDHCP(const bool &value) { dhcp = value; }
+      
+      /**
+       * Is the mbed board trying to use DHCP?
+       */
+      const bool &getUseDHCP() const { return dhcp; }
+
+      /**
+       * Initialise the network environment. Set up all services.
+       * Please call after configuration.
+       */
+      void init();
+
+      /**
+       * Set the network interface up.
+       * To enable the network interface after calling setDown()
+       * Automaticly called from init().
+       */
+      void setUp() const;
+      
+      /**
+       * Set the network interface down.
+       * To disable the network interface temporary.
+       * To make the interface avalible again use setUp().
+       */
+      void setDown() const;
+      
+      /**
+       * Returns 1 if the network is up otherwise 0.
+       */
+      int isUp() const;
+      
+      /**
+       * This function waits until the network interface is Up.
+       * To use to wait after init with DHCP. Helps continue work 
+       * after the network interface is completly up.
+       */
+      void waitUntilReady();
+
+      /**
+       * Bind Callbackfunctions to a TCPPort.
+       * It provides a clean lowlevel Interface to the TCPLayer.
+       */      
+      TCPCallbackListener *bindTCPPort(u16_t, err_t (*)(TCPCallbackListener *, struct tcp_pcb *, err_t)) const;
+
+      /**
+       * Frees TCPItems because they cant do it directly.
+       */
+      void free(TCPItem *item) const;
+
+      static int time();
+
+    protected:
+      void _poll() const;
+
+      /**
+       * Default constructor tryes to bring the network interface up with dhcp.
+       */
+      NetServer();
+
+      /**
+       * Constructor for fix ip setting
+       */
+      NetServer(struct ip_addr me_ip, struct ip_addr netmask, struct ip_addr gateway);
+
+    private:
+      /**
+       * This is a singleton class.
+       * So we should not have a public copy constructor.
+       */
+      NetServer(NetServer const&)            {}
+//      NetServer &operator=(NetServer const&) {}
+      
+      struct netif   *netif;
+      struct netif    netif_data;
+
+      struct ip_addr  ipaddr;
+      struct ip_addr  netmask;
+      struct ip_addr  gateway;
+      
+      struct ip_addr  firstdns;
+      struct ip_addr  seconddns;
+      
+      bool            dhcp;
+      
+      list<TCPItem *> *del;
+      
+      Ticker tickARP, /*eth_tick,*/ dns_tick, dhcp_coarse, dhcp_fine;
+      const char *hostname;
+      static NetServer *singleton;
+      Timer _time;
+  };
+
+};
+#endif /* NETSERVER_H */