lpcmanager

Fix SmartehCloud updates applying multiple times when re-connecting.

15 months ago, Edouard Tisserant
45715d2aaaf4
Fix SmartehCloud updates applying multiple times when re-connecting.
Ensure that LPCMQTT command execution is serialized.
This is a consequence of duplicate messages sent at init.
Seems to happen either because server or client ignores "cleansession"/"cleanstart".
if(!pthread_mutex_lock(&UART_ReadMutex)){
int prevstate;
if((prevstate=uartDevReadBuf_plc_state) == FULL){
uartDevReadBuf_plc_state = LOCKED;
}
pthread_mutex_unlock(&UART_ReadMutex);
if(prevstate == FULL){
%(retrieve_code)s
/* unlock plc buffer */
uartDevReadBuf_plc_state = EMPTY;
}else{
/* No new data -> no update */
}
}