1 b2cfc4e2 2003-09-30 devnull #include	"lib9.h"
 2 b2cfc4e2 2003-09-30 devnull #include	<bio.h>
 3 b2cfc4e2 2003-09-30 devnull 
 4 b2cfc4e2 2003-09-30 devnull int
 5 b2cfc4e2 2003-09-30 devnull Bbuffered(Biobuf *bp)
 6 b2cfc4e2 2003-09-30 devnull {
 7 b2cfc4e2 2003-09-30 devnull 	switch(bp->state) {
 8 b2cfc4e2 2003-09-30 devnull 	case Bracteof:
 9 b2cfc4e2 2003-09-30 devnull 	case Bractive:
10 b2cfc4e2 2003-09-30 devnull 		return -bp->icount;
11 b2cfc4e2 2003-09-30 devnull 
12 b2cfc4e2 2003-09-30 devnull 	case Bwactive:
13 b2cfc4e2 2003-09-30 devnull 		return bp->bsize + bp->ocount;
14 b2cfc4e2 2003-09-30 devnull 
15 b2cfc4e2 2003-09-30 devnull 	case Binactive:
16 b2cfc4e2 2003-09-30 devnull 		return 0;
17 b2cfc4e2 2003-09-30 devnull 	}
18 b2cfc4e2 2003-09-30 devnull 	fprint(2, "Bbuffered: unknown state %d\n", bp->state);
19 b2cfc4e2 2003-09-30 devnull 	return 0;
20 b2cfc4e2 2003-09-30 devnull }