diff options
Diffstat (limited to 'src/or/rephist.c')
| -rw-r--r-- | src/or/rephist.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/or/rephist.c b/src/or/rephist.c index 1ff9cde69f..003e082d58 100644 --- a/src/or/rephist.c +++ b/src/or/rephist.c @@ -2701,9 +2701,16 @@ rep_hist_buffer_stats_write(time_t now) memset(circs_in_share, 0, SHARES * sizeof(int)); memset(queued_cells, 0, SHARES * sizeof(double)); memset(time_in_queue, 0, SHARES * sizeof(double)); + if (!circuits_for_buffer_stats) + circuits_for_buffer_stats = smartlist_create(); smartlist_sort(circuits_for_buffer_stats, _buffer_stats_compare_entries); number_of_circuits = smartlist_len(circuits_for_buffer_stats); + if (number_of_circuits < 1) { + log_info(LD_HIST, "Attempt to write cell statistics to disk failed. " + "We haven't seen a single circuit to report about."); + goto done; + } i = 0; SMARTLIST_FOREACH_BEGIN(circuits_for_buffer_stats, circ_buffer_stats_t *, stat) |