sys/src/libbio/bbuffered.c

   1 #include        <u.h>
   2 #include        <libc.h>
   3 #include        <bio.h>
   4
   5 int
   6 Bbuffered(Biobufhdr *bp)
   7 {
   8         switch(bp->state) {
   9         case Bracteof:
  10         case Bractive:
  11                 return -bp->icount;
  12
  13         case Bwactive:
  14                 return bp->bsize + bp->ocount;
  15
  16         case Binactive:
  17                 return 0;
  18         }
  19         fprint(2, "Bbuffered: unknown state %d\n", bp->state);
  20         return 0;
  21 }