extern void enable_CIF();
extern void disable_CIF();
extern int RegTaskForCIF(unsigned short usDevNumber,unsigned char task_n);
extern int UnregTaskForCIF(unsigned short usDevNumber,unsigned char task_n);
extern int GetDB_CIF(char n_port,char n_st,char n_task,int n_db,long offset, int len,char *buffer);
extern int PutDB_CIF(char n_port,char n_st,char n_task,int n_db,long offset, int len,char *buffer);
extern int FindSt_CIF(char n_port,char n_st,char n_task);
extern int GetStatContrCIF(char n_port,char n_task);