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MQTT subscribe only when reconnect successful

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This commit is contained in:
tastendruecker123 2022-08-19 12:43:47 +02:00
parent b48256b2e8
commit e59ca5f388
1 changed files with 11 additions and 8 deletions
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19
tools/esp8266/mqtt.h
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@ -54,7 +54,7 @@ class mqtt {
bool isConnected(bool doRecon = false) {
//DPRINTLN(DBG_VERBOSE, F("mqtt.h:isConnected"));
if(doRecon)
if(doRecon && !mClient->connected())
reconnect();
return mClient->connected();
}
@ -71,6 +71,7 @@ class mqtt {
DPRINTLN(DBG_DEBUG, F("mqtt.h:reconnect"));
DPRINTLN(DBG_DEBUG, F("MQTT mClient->_state ") + String(mClient->state()) );
DPRINTLN(DBG_DEBUG, F("WIFI mEspClient.status ") + String(mEspClient.status()) );
boolean resub = false;
if(!mClient->connected()) {
if(strlen(mDevName) > 0) {
// der Server und der Port müssen neu gesetzt werden,
@ -78,16 +79,18 @@ class mqtt {
mClient->setServer(mCfg->broker, mCfg->port);
mClient->setBufferSize(MQTT_MAX_PACKET_SIZE);
if((strlen(mCfg->user) > 0) && (strlen(mCfg->pwd) > 0))
mClient->connect(mDevName, mCfg->user, mCfg->pwd);
resub = mClient->connect(mDevName, mCfg->user, mCfg->pwd);
else
mClient->connect(mDevName);
resub = mClient->connect(mDevName);
}
// ein Subscribe ist nur nach einem connect notwendig
char topic[MQTT_TOPIC_LEN + 13 ]; // "/devcontrol/#" --> + 6 byte
// ToDo: "/devcontrol/#" is hardcoded
snprintf(topic, MQTT_TOPIC_LEN + 13, "%s/devcontrol/#", mCfg->topic);
DPRINTLN(DBG_INFO, F("subscribe to ") + String(topic));
mClient->subscribe(topic); // subscribe to mTopic + "/devcontrol/#"
if(resub) {
char topic[MQTT_TOPIC_LEN + 13 ]; // "/devcontrol/#" --> + 6 byte
// ToDo: "/devcontrol/#" is hardcoded
snprintf(topic, MQTT_TOPIC_LEN + 13, "%s/devcontrol/#", mCfg->topic);
DPRINTLN(DBG_INFO, F("subscribe to ") + String(topic));
mClient->subscribe(topic); // subscribe to mTopic + "/devcontrol/#"
}
}
}