From f6fee77375d246d3607b82577464a499685c1ce6 Mon Sep 17 00:00:00 2001 From: Nick Mathewson Date: Wed, 30 Oct 2013 23:00:52 -0400 Subject: Add some clarity and checks to cell_queue_append_packed_copy It's not cool to have "circ may be NULL if use_stats false, but otherwise we crash" as an undocumented API constraint. :) --- src/or/relay.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'src') diff --git a/src/or/relay.c b/src/or/relay.c index 7947ca373..e0b5d26fe 100644 --- a/src/or/relay.c +++ b/src/or/relay.c @@ -2204,7 +2204,9 @@ cell_command_queue_pop(uint8_t *command, cell_queue_t *queue) } /** Append a newly allocated copy of cell to the end of the - * exitward (or app-ward) queue of circ. */ + * exitward (or app-ward) queue of circ. If + * use_stats is true, record statistics about the cell. + */ void cell_queue_append_packed_copy(circuit_t *circ, cell_queue_t *queue, int exitward, const cell_t *cell, @@ -2244,7 +2246,7 @@ cell_queue_append_packed_copy(circuit_t *circ, cell_queue_t *queue, } /* Remember that we added a cell to the queue, and remember the cell * command. */ - if (get_options()->TestingEnableCellStatsEvent) { + if (get_options()->TestingEnableCellStatsEvent && circ) { testing_cell_stats_entry_t *ent = tor_malloc_zero(sizeof(testing_cell_stats_entry_t)); ent->command = cell->command; -- cgit v1.2.3