tmk_core/tool/mbed/mbed-sdk/libraries/net/cellular/CellularModem/ip/IPInterface.h

   1 /* IPInterface.h */
   2 /* Copyright (C) 2012 mbed.org, MIT License
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
   5  * and associated documentation files (the "Software"), to deal in the Software without restriction,
   6  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
   7  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
   8  * furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in all copies or
  11  * substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
  14  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  16  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  17  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  18  */
  19
  20 #ifndef IPINTERFACE_H_
  21 #define IPINTERFACE_H_
  22
  23 #include "core/fwk.h"
  24
  25 /** Generic IP-based network interface
  26  *
  27  */
  28 class IPInterface
  29 {
  30 public:
  31     IPInterface();
  32     virtual ~IPInterface();
  33
  34     //int init(); //Initialize interface; no connection should be performed at this stage
  35     virtual int connect() = 0; //Do connect the interface
  36     virtual int disconnect() = 0;
  37     //It is encouraged that the derived class implement a "setup(...)" function to configure the interface before the connection
  38
  39     char* getIPAddress(); //Get IP Address as a string ('a.b.c.d')
  40     bool isConnected(); //Is the interface connected?
  41
  42     static IPInterface* getDefaultInterface(); //For use by TCP, UDP sockets library
  43
  44     //WARN: Implementation will have to be more careful in case of multiple interfaces (or implement a routing protocol based on local IP addresses differentiation)
  45     void registerAsDefaultInterface(); //First come, first served
  46     void unregisterAsDefaultInterface(); //Must be called before inst is destroyed to avoid invalid ptr fault
  47
  48 protected:
  49     //Must be called by subclasses
  50     void setIPAddress(char* ipAddr);
  51     void setConnected(bool connected);
  52
  53 private:
  54     char m_ipAddr[16];
  55     bool m_connected;
  56
  57     static IPInterface* s_pDefaultInterface;
  58 };
  59
  60 #endif /* IPINTERFACE_H_ */