#ifndef TECS_DATA_H_
#define TECS_DATA_H_

typedef struct {
  char *name;
} DataSet;

typedef struct {
  void *private;
} DataBase;

DataSet *DataCreateSet(DataBase *dBase, char *name, float *var, int step, int lifetime, int start);
/*
   create a new dataset
   if the dataset already exists, or memory allocation failed, NULL is returned
   set <dBase> to NULL to use the common database
*/

DataSet *DataFindSet(DataBase *dBase, char *name);
/*
   find a previously created dataset.
   returns NULL if dataset not found
   set <dBase> to NULL to use the common database
*/

int DataSetStep(DataSet *set, int step);
int DataSetLifetime(DataSet *set, int lifetime);
int DataPut(DataSet *set, int time, float value);
/*
  put one value to dataset
*/

int DataPutAll(DataBase *dBase, int time);
/*
  put all variables in a set to their dataset
*/

int DataGetMult(char *names, int startTime, int endTime, int step, int stdStep, float *data, int data_len);
/*
  get multiple datasets
*/

void DataUndef(float undef);

/*
  define DATA_UNDEF as a binary and decimal well defined, hopefully rarely used number
*/
#define DATA_UNDEF MYC_NAN
#define DATA_GAP (MYC_NAN*2)

#endif /* TECS_DATA_H_ */