bim.hh

来自「COPE the first practical network coding 」· HH 代码 · 共 49 行

#ifndef CLICK_BIM_HH
#define CLICK_BIM_HH
#include <click/element.hh>
#include <click/task.hh>
CLICK_DECLS

/*
 * BIM(/dev/cuaa0, speed)
 *
 * Read and write packets from/to ABACOM BIM-4xx-RS232 radio.
 * Takes care of low-level framing.
 * Pulls *and* pushes packets.
 */

class BIM : public Element {
 public:
  BIM();
  ~BIM();
  
  const char *class_name() const	{ return "BIM"; }
  const char *processing() const	{ return PULL_TO_PUSH; }
  
  int configure(Vector<String> &, ErrorHandler *);
  int initialize(ErrorHandler *);

  void selected(int fd);

  void push(int port, Packet *);
  bool run_task();

 private:
  String _dev;
  int _speed;
  int _fd;
  Task _task;

  /* turn bytes from the radio into frames */
  void got_char(int c);
  char _buf[2048];
  int _len;
  int _started;
  int _escaped;

  void send_packet(const unsigned char buf[], unsigned int len);
};

CLICK_ENDDECLS
#endif