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/*
* Definitions common to data-file readers.
* At the moment this is somewhat specific to analog data.
*
* $Log: reader.h,v $
* Revision 1.2 1998/09/17 18:22:39 tell
* split typedef and struct decls to allow forward references.
* added user-data pointer to DVar
* Added binary HSPICE format and tracking of variable types
*
* Revision 1.1 1998/08/31 21:00:41 tell
* Initial revision
*
*/
#define DS_DBLKSIZE 8192
#define DS_INBLKS 1024
#define ds_blockno(n) ((n) / DS_DBLKSIZE)
#define ds_offset(n) ((n) % DS_DBLKSIZE)
typedef enum {
UNKNOWN = 0,
TIME = 1,
VOLTAGE = 2,
CURRENT = 3,
FREQUENCY = 4,
} VarType;
typedef struct _DVar DVar;
typedef struct _DataFile DataFile;
typedef struct _IVar IVar;
typedef struct _DataSet DataSet;
/*
* an array of values, the common part at the start of both DVar and IVar.
*/
struct _DataSet {
char *name;
DataFile *dfile; /* backpointer to file */
VarType type;
int nvalues;
double min;
double max;
/* remaining stuff is an array storage structure
* that could be abstracted out and/or replaced with somthing else */
/* pointer to array of pointers to blocks of doubles */
double **bptr;
int bpsize; /* size of array of pointers */
int bpused; /* number of blocks actually allocated */
};
/* independent variable, for example time
* values are expected to be monotonicly increasing.
* (or at least nondecreasing)
*/
struct _IVar {
DataSet d;
/* possible enhancement if needed for speed: add tree-structure
* for fast access to particular value or ranges of values
*/
};
/* dependent variable, for example voltage */
struct _DVar {
DataSet d;
IVar *iv;
void *udata;
};
struct _DataFile {
char *filename;
IVar *iv;
int ndv;
DVar **dv;
};
/* defined in rd_cazm.c */
extern DataFile *cz_read_file(char *name, FILE *fp);
/* defined in rd_hspice.c */
extern DataFile *hs_read_file_ascii(char *name, FILE *fp);
extern DataFile *hs_read_file_bin(char *name, FILE *fp);
/* defined in reader.c */
extern DataFile *analog_read_file(char *name, char *format);
extern double an_interp_value(DVar *dv, double ival);
extern int an_find_point(IVar *iv, double ival);
extern double an_get_point(DataSet *ds, int n);
extern int fread_line(FILE *fp, char **bufp, int *bufsize);
extern void an_free_datafile(DataFile *df);
extern void an_init_dataset(DataSet *ds, DataFile *df,
char *name, VarType type);
extern void an_free_dataset(DataSet *ds);
extern void an_set_point(DataSet *ds, int n, double val);
extern void an_expand_dset(DataSet *ds);
extern char *vartype_name_str(VarType type);
extern int analog_read_debug;
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