ref: 5d0c3ab7df27403796b07e09ae74558083ce8a61
dir: /sys/include/bio.h/
#pragma src "/sys/src/libbio" #pragma lib "libbio.a" typedef struct Biobuf Biobuf; typedef struct Biobufhdr Biobufhdr; enum { Bsize = 8*1024, Bungetsize = UTFmax+1, /* 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 */ void (*errorf)(char *); /* called on error if not nil */ int (*iof)(Biobufhdr*, void *, long); /* called to do i/o */ void *aux; /* user data */ }; 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); Biobuf* Bfdopen(int, 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); void Blethal(Biobufhdr*, void(*)(char*)); void Berror(Biobufhdr*, char*, ...); void Biofn(Biobufhdr*, int(*)(Biobufhdr*, void*, long)); #pragma varargck argpos Bprint 2 #pragma varargck argpos Berror 2