74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
#pragma src "/sys/src/libbio"
|
|
#pragma lib "libbio.a"
|
|
|
|
typedef struct Biobuf Biobuf;
|
|
typedef struct Biobufhdr Biobufhdr;
|
|
|
|
enum
|
|
{
|
|
Bsize = 8*1024,
|
|
Bungetsize = 4, /* space for ungetc */
|
|
Bmagic = 0x314159,
|
|
Beof = -1,
|
|
Bbad = -2,
|
|
|
|
Binactive = 0, /* states */
|
|
Bractive,
|
|
Bwactive,
|
|
Bracteof,
|
|
};
|
|
|
|
struct Biobufhdr
|
|
{
|
|
int icount; /* neg num of bytes at eob */
|
|
int ocount; /* num of bytes at bob */
|
|
int rdline; /* num of bytes after rdline */
|
|
int runesize; /* num of bytes of last getrune */
|
|
int state; /* r/w/inactive */
|
|
int fid; /* open file */
|
|
int flag; /* magic if malloc'ed */
|
|
vlong offset; /* offset of buffer in file */
|
|
int bsize; /* size of buffer */
|
|
uchar* bbuf; /* pointer to beginning of buffer */
|
|
uchar* ebuf; /* pointer to end of buffer */
|
|
uchar* gbuf; /* pointer to good data in buf */
|
|
};
|
|
|
|
struct Biobuf
|
|
{
|
|
Biobufhdr;
|
|
uchar b[Bungetsize+Bsize];
|
|
};
|
|
|
|
/* Dregs, redefined as functions for backwards compatibility */
|
|
#define BGETC(bp) Bgetc(bp)
|
|
#define BPUTC(bp,c) Bputc(bp,c)
|
|
#define BOFFSET(bp) Boffset(bp)
|
|
#define BLINELEN(bp) Blinelen(bp)
|
|
#define BFILDES(bp) Bfildes(bp)
|
|
|
|
int Bbuffered(Biobufhdr*);
|
|
int Bfildes(Biobufhdr*);
|
|
int Bflush(Biobufhdr*);
|
|
int Bgetc(Biobufhdr*);
|
|
int Bgetd(Biobufhdr*, double*);
|
|
long Bgetrune(Biobufhdr*);
|
|
int Binit(Biobuf*, int, int);
|
|
int Binits(Biobufhdr*, int, int, uchar*, int);
|
|
int Blinelen(Biobufhdr*);
|
|
vlong Boffset(Biobufhdr*);
|
|
Biobuf* Bopen(char*, int);
|
|
int Bprint(Biobufhdr*, char*, ...);
|
|
int Bvprint(Biobufhdr*, char*, va_list);
|
|
int Bputc(Biobufhdr*, int);
|
|
int Bputrune(Biobufhdr*, long);
|
|
void* Brdline(Biobufhdr*, int);
|
|
char* Brdstr(Biobufhdr*, int, int);
|
|
long Bread(Biobufhdr*, void*, long);
|
|
vlong Bseek(Biobufhdr*, vlong, int);
|
|
int Bterm(Biobufhdr*);
|
|
int Bungetc(Biobufhdr*);
|
|
int Bungetrune(Biobufhdr*);
|
|
long Bwrite(Biobufhdr*, void*, long);
|
|
|
|
#pragma varargck argpos Bprint 2
|