Commit e96d807d authored by Roger Dingledine's avatar Roger Dingledine
Browse files

Revert part of r10874, since it was breaking our load balancing 

(we always picked one router past the one we wanted!) and could
conceivably read past the end of the smartlist too.

Nick, I don't know what gcc 4.2 was worried about, but we need
to find a better fix than this. :)


svn:r10901
parent 83f605f2

src/or/routerlist.c

+4 −3
Original line number Diff line number Diff line
@@ -1283,7 +1283,7 @@ smartlist_choose_by_bandwidth(smartlist_t *sl, int for_exit, int statuses) 


  /* Last, count through sl until we get to the element we picked */

  tmp = 0;

  for (i=0; i < smartlist_len(sl) && tmp < rand_bw; i++) {

  for (i=0; i < smartlist_len(sl); i++) {

    if (statuses) {

      status = smartlist_get(sl, i);

      is_exit = status->is_exit;
@@ -1295,10 +1295,11 @@ smartlist_choose_by_bandwidth(smartlist_t *sl, int for_exit, int statuses) 
      tmp += ((uint64_t)(bandwidths[i] * exit_weight));

    else

      tmp += bandwidths[i];

    if (tmp >= rand_bw)

      break;

  }

  if (tmp < rand_bw) {

  if (i == smartlist_len(sl)) {

    /* This is possible due to round-off error. */

    tor_assert(i == smartlist_len(sl));

    --i;

    log_warn(LD_BUG, "Round-off error in computing bandwidth had an effect on "

             " which router we chose.  Please tell the developers.");