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system/uorb: fix listener_top not showing topic data

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listener_update() only prints topic data when delta_generation is
non-zero (i.e., new data arrived since last check). In listener_top,
the first call adds objects to the list, and subsequent calls only
print if new data was published between iterations. This results in
listener_top -T showing only the header with no topic rows.

Fix by always printing the current topic state in listener_update,
setting frequency to 0 when no new data arrives. This ensures
listener_top displays all topics every iteration.

Fixes apache/nuttx-apps#3202

Signed-off-by: hanzj <hanzhijian@zepp.com>
This commit is contained in:
hanzj 2026-06-05 19:41:14 +08:00 • committed by Xiang Xiao
parent 80907e514c
commit 8b4d20e411
1 changed files with 14 additions and 13 deletions
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27
system/uorb/listener.c
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@ -330,24 +330,25 @@ static int listener_update(FAR struct listen_list_s *objlist,
delta_time = now_time - old->timestamp;
delta_generation = state.generation - old->generation;
unsigned long frequency = 0;
if (delta_generation && delta_time)
{
unsigned long frequency;
frequency = (state.max_frequency ? state.max_frequency : 1000000)
* delta_generation / delta_time;
uorbinfo_raw("\033[K" "%-*s %2u %4" PRIu32 " %4lu "
"%2" PRIu32 " %4u",
ORB_MAX_PRINT_NAME,
object->meta->o_name,
object->instance,
state.nsubscribers,
frequency,
state.queue_size,
object->meta->o_size);
old->generation = state.generation;
old->timestamp = now_time;
}
uorbinfo_raw("\033[K" "%-*s %2u %4" PRIu32 " %4lu "
"%2" PRIu32 " %4u",
ORB_MAX_PRINT_NAME,
object->meta->o_name,
object->instance,
state.nsubscribers,
frequency,
state.queue_size,
object->meta->o_size);
old->generation = state.generation;
old->timestamp = now_time;
}
else
{