#include<stdlib.h>
#include<stdio.h>
#include<popt.h>

double interval=1.0,stime=0.0;
int    nnodes=100,nmsgs=1000,msgsize=1000;
unsigned int seed=1;

struct poptOption args[]= {
  {
    "nnodes",
    'n',
    POPT_ARG_INT | POPT_ARGFLAG_ONEDASH | POPT_ARGFLAG_SHOW_DEFAULT,
    &nnodes,
    0,
    "Number of nodes simulated",
    NULL
  },
  {
    "nmsgs",
    'm',
    POPT_ARG_INT | POPT_ARGFLAG_ONEDASH | POPT_ARGFLAG_SHOW_DEFAULT,
    &nmsgs,
    0,
    "Number of messages",
    NULL
  },
  {
    "interval",
    'i',
    POPT_ARG_DOUBLE | POPT_ARGFLAG_ONEDASH | POPT_ARGFLAG_SHOW_DEFAULT,
    &interval,
    0,
    "Interval between consecutive messages",
    NULL
  },
  {
    "stime",
    't',
    POPT_ARG_DOUBLE | POPT_ARGFLAG_ONEDASH | POPT_ARGFLAG_SHOW_DEFAULT,
    &stime,
    0,
    "Time of first message",
    NULL
  },
  {
    "size",
    'z',
    POPT_ARG_INT | POPT_ARGFLAG_ONEDASH | POPT_ARGFLAG_SHOW_DEFAULT,
    &msgsize,
    0,
    "Size of each message",
    NULL
  },
  {
    "seed",
    's',
    POPT_ARG_INT | POPT_ARGFLAG_ONEDASH | POPT_ARGFLAG_SHOW_DEFAULT,
    &seed,
    0,
    "Random number generator seed",
    NULL
  },
  POPT_AUTOHELP { NULL, 0, 0, NULL, 0 },
  POPT_TABLEEND
};


void createRegistrations() {
  int count;

  printf("#\n# Registrations\n#\n");

  for(count=0;count<nmsgs;count++) {

    /* Print of the record */
    printf("$ns_ at %lf \"$pampa_(%d) bcast %d\"\n",
	stime+interval*count,(int)(((double)nnodes)*rand()/(RAND_MAX+1.0)),msgsize);
  }
}

int main(int argc,const char* argv[]) {
  poptContext optCon=poptGetContext(argv[0],argc,argv,args,0);
  int rc=poptGetNextOpt(optCon);
  if(rc<-1) {
    fprintf(stderr,"%s: %s\n",poptBadOption(optCon,POPT_BADOPTION_NOALIAS),
	    poptStrerror(rc));
    exit(1);
  }

  srand(seed);

  printf("# %s -n %d -m %d -i %g -t %g -z %d "
	 "-s %d\n",
	 argv[0],nnodes,nmsgs,interval,stime,msgsize,
	 seed);

  createRegistrations();
}