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- /*
- * This file is part of the UCB release of Plan 9. It is subject to the license
- * terms in the LICENSE file found in the top-level directory of this
- * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
- * part of the UCB release of Plan 9, including this file, may be copied,
- * modified, propagated, or distributed except according to the terms contained
- * in the LICENSE file.
- */
- #include <u.h>
- #include <libc.h>
- #include <bio.h>
- int
- Bbuffered(Biobufhdr *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;
- }
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