ref: 6cb359cc00bdc8204b011db46b8746c446f2c4de
dir: /sys/src/libbio/bvprint.c/
#include <u.h> #include <libc.h> #include <bio.h> static int fmtBflush(Fmt *f) { Biobufhdr *bp; bp = f->farg; bp->ocount = (char*)f->to - (char*)f->stop; if(Bflush(bp) < 0) return 0; f->stop = bp->ebuf; f->to = (char*)f->stop + bp->ocount; f->start = f->to; return 1; } int Bvprint(Biobufhdr *bp, char *fmt, va_list arg) { int n; Fmt f; f.runes = 0; f.stop = bp->ebuf; f.start = (char*)f.stop + bp->ocount; f.to = f.start; f.flush = fmtBflush; f.farg = bp; f.nfmt = 0; f.args = arg; n = dofmt(&f, fmt); bp->ocount = (char*)f.to - (char*)f.stop; return n; }