[foxboro] AIMAPI

Hello listers,
 

Anyone care to share a example program that uses an_hist_values() in the
windoze environment?

 

Up till now I've not been able to get it to work.

I get -1 in ret and strangely I get 1013 returned as time. 

This looks suspiciously like an error code (AN_INVALARG Null pointer as
argument or invalid argument.)

Where am I going wrong?

Here is the code snipped I use:

void get_hist_data(){

 

      char hist[AN_DBNM_NPSIZ]   = "k0hs02";

      char aname[AN_DBNM_NPSIZ]  = "";

      char gname[AN_GPID_NPSIZ]  = "common";

      char colnam[AN_CNAM_NPSIZ] = "avg";

      char pname[AN_PTID_NPSIZ]  = "K01FCP_STA:STATION.MINUTE";

      time_t start  = 1245363934;

      time_t end    = 1245371143;

      int     direction = 0;

      long    numpts  = 0;

      long    maxnum  = 1;

      int     ret     = 0;

      long    more    = 0;

      long    actnum  = 0;

      float  *value;

      time_t *time;

      int    *status;

      int     reterr  = 0;

 

      value = calloc(maxnum, sizeof(float));

      time = calloc(maxnum, sizeof(time_t));

      status = calloc(maxnum, sizeof(float));

 

      ret = an_hist_values(         

            hist, aname, gname, colnam, pname, 

            start, end, direction, numpts, maxnum, &more, &actnum, 

            value, time, status, &reterr);

 

      printf("value: %f, ret:%i\n",value,ret);

}





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