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	bflush.c - 9base - revived minimalist port of Plan 9 userland to Unix
	git clone git://git.suckless.org/9base
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	bflush.c (461B)
	---
	1 #include "lib9.h"
	2 #include <bio.h>
	3
	4 int
	5 Bflush(Biobuf *bp)
	6 {
	7 int n, c;
	8
	9 switch(bp->state) {
	10 case Bwactive:
	11 n = bp->bsize+bp->ocount;
	12 if(n == 0)
	13 return 0;
	14 c = write(bp->fid, bp->bbuf, n);
	15 if(n == c) {
	16 bp->offset += n;
	17 bp->ocount = -bp->bsize;
	18 return 0;
	19 }
	20 bp->state = Binactive;
	21 bp->ocount = 0;
	22 break;
	23
	24 case Bracteof:
	25 bp->state = Bractive;
	26
	27 case Bractive:
	28 bp->icount = 0;
	29 bp->gbuf = bp->ebuf;
	30 return 0;
	31 }
	32 return Beof;
	33 }