code: 9ferno

ref: 410c1337e07a9f1d521360a160903fe32b4e0d4a
dir: /libbio/bbuffered.c/

View raw version 
#include	"lib9.h"
#include	<bio.h>

int
Bbuffered(Biobuf *bp)
{
	switch(bp->state) {
	case Bracteof:
	case Bractive:
		return -bp->icount;

	case Bwactive:
		return bp->bsize + bp->ocount;

	case Binactive:
		return 0;
	}
	fprint(2, "Bbuffered: unknown state %d\n", bp->state);
	return 0;
}