ttnetwork.h

来自「一个很棒的网络控制系统仿真软件」· C头文件 代码 · 共 114 行

#define max(A,B) ((A) > (B) ? (A) : (B))
#define min(A,B) ((A) < (B) ? (A) : (B))

enum { CSMACD, CSMAAMP, RR, FDMA, TDMA, SFDSE };

enum { COMMONBUF, OUTPUTBUF };

enum { BUFFULLRETRY, BUFFULLDROP };

#define COLLISION_WINDOW 0.000001  // 1 us
#define ETHERNET_MINFRAMESIZE 64

class NWmsg : public Node {
 public:
  int sender;
  int receiver;
  int timesRead;
  void *data;       // message content
  char* dataMATLAB; 
  int length;       // in bytes - determines the transmission time
  double prio;
  double waituntil;    // when wait in pre/postprocQ has finished
  double remaining;    // remaining nbr of bytes to be transmitted
  void print();
};

void NWmsg::print() {
  printf("msg: sender=%d, receiver=%d, length=%d ", sender, receiver, length);
}


class NWnode {
 public:
  List *preprocQ;
  List *inputQ;
  List *postprocQ;
  List *outputQ;
  List *switchQ;
  int state;
  int nbrcollisions;
  double waituntil;
  int swstate;   // state of switch output
  int switchmem; // output buffer memory

  NWnode(); // constructor
};

NWnode::NWnode() {
  preprocQ = new List("preprocQ",0);
  inputQ = new List("inputQ",0);
  outputQ = new List("outputQ",0);
  postprocQ = new List("postprocQ",0);
  switchQ = new List("switchQ",0);

  state = 0; // idle
  nbrcollisions = 0;
  waituntil = 0.0;
  swstate = 0; // idle
}


class RTnetwork {
 public:
  int type;
  int networkNbr;
  int nbrOfNodes;
  double datarate;     /* bytes(!)/s */
  int minsize;         /* minimum frame size (bytes) */
  double predelay;     /* preprocessing delay (s) */
  double postdelay;    /* postprocessing delay (s) */
  double lossprob;     /* probability of a packet getting lost */
  double *bandwidths;  /* FDMA only: vector of bandwidth factors */
  double slottime;     /* TDMA only: size of a slot in seconds */
  int schedsize;       /* TDMA only: the length of the cyclic schedule */
  int *schedule;       /* TDMA only: vector of senders */
  int memsize;         /* SFDSE only: switch memory size */
  int buftype;         /* SFDSE only: switch buffer type */
  int overflow;        /* SFDSE only: switch overflow behavior */

  NWnode **nwnodes;    /* vector of network nodes */

  double time;      // Current time in simulation
  double prevHit;   // Previous invocation of kernel
  double nextHit;   // Next invocation of kernel

  double *inputs;
  double *oldinputs;
  double *outputs;      // trigger outputs
  double *sendschedule; // schedule outputs

  int sending;          // nbr of the sending node, -1 if none (not FDMA)

  double waituntil;     // the network is idle until this time (CSMA)
  double lasttime;      // last time a frame started to be sent (CSMA)

  int rrturn;           // Round Robin turn (0 - nbrOfNodes-1) (RR)

  double currslottime;  // time current slot started (TDMA)
  int slotcount;        // current slot in the schedule (TDMA)

  int switchmem;        // global switch memory

  RTnetwork(); // constructor
};

RTnetwork::RTnetwork() {
  bandwidths = NULL;
  schedule = NULL;
  inputs = NULL;
  oldinputs = NULL;
  outputs = NULL;
  sendschedule = NULL;
}