1 #include "lib9.h"
2 #include <bio.h>
3 
4 static int
5 _Bfmtflush(Fmt *f)
6 {
7 	Biobuf *b;
8 
9 	b = f->farg;
10 	b->ocount = (char*)f->to - (char*)f->stop;
11 	if(Bflush(b) < 0)
12 		return 0;
13 	f->to = b->ebuf+b->ocount;
14 	return 1;
15 }
16 
17 int
18 Bfmtinit(Fmt *f, Biobuf *b)
19 {
20 	if(b->state != Bwactive)
21 		return -1;
22 	memset(f, 0, sizeof *f);
23 	f->farg = b;
24 	f->start = b->bbuf;
25 	f->to = b->ebuf+b->ocount;
26 	f->stop = b->ebuf;
27 	f->flush = _Bfmtflush;
28 	return 0;
29 }
30 
31 int
32 Bfmtflush(Fmt *f)
33 {
34 	Biobuf *b;
35 
36 	b = f->farg;
37 	if(f->to == nil)
38 		return -1;
39 	b->ocount = (char*)f->to - (char*)f->stop;
40 	return f->nfmt;
41 }