Prevent unexpected reboots due to race condition in MQTT timeout handling #3
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SevenW
commented
Nov 30, 2020
| void mqttLoop() { | ||
| if (millis() - mqPingRx > 20*MQ_TIMEOUT) { | ||
| printf("*** No MQTT response in %d seconds - resetting\n", (millis()-mqPingRx)/1000); | ||
| uint32_t cachemqPingRx = mqPingRx; |
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The volatile obviously should be used, but did not solve the problem by itself. The additional variable did the trick.
I also tried swapping the millis() and the MqPingRX in the test, but that did not solve it.
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