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mqtt: fix ping request coming too late

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See bug #56022 and patch #9813

Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
This commit is contained in:
Giuseppe Modugno 2019-06-11 07:40:15 +02:00 committed by Simon Goldschmidt
parent b3a939417e
commit edeeef0d20
1 changed files with 1 additions and 2 deletions
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3
src/apps/mqtt/mqtt.c
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@ -603,14 +603,13 @@ mqtt_cyclic_timer(void *arg)
} }
/* If time for a keep alive message to be sent, transmission has been idle for keep_alive time */ /* If time for a keep alive message to be sent, transmission has been idle for keep_alive time */
client->cyclic_tick++;
if ((client->cyclic_tick * MQTT_CYCLIC_TIMER_INTERVAL) >= client->keep_alive) { if ((client->cyclic_tick * MQTT_CYCLIC_TIMER_INTERVAL) >= client->keep_alive) {
LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_cyclic_timer: Sending keep-alive message to server\n")); LWIP_DEBUGF(MQTT_DEBUG_TRACE, ("mqtt_cyclic_timer: Sending keep-alive message to server\n"));
if (mqtt_output_check_space(&client->output, 0) != 0) { if (mqtt_output_check_space(&client->output, 0) != 0) {
mqtt_output_append_fixed_header(&client->output, MQTT_MSG_TYPE_PINGREQ, 0, 0, 0, 0); mqtt_output_append_fixed_header(&client->output, MQTT_MSG_TYPE_PINGREQ, 0, 0, 0, 0);
client->cyclic_tick = 0; client->cyclic_tick = 0;
} }
} else {
client->cyclic_tick++;
} }
} }
} else { } else {