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fix for deadlock in libmosquitto (https://github.com/eclipse/mosquitto/issues/1090), fixes #231

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This commit is contained in:
john30
2018-12-23 15:32:34 +01:00
parent be8d772524
commit c475e6ce0e
1 changed files with 15 additions and 15 deletions
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src/ebusd/mqtthandler.cpp
+15 -15
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@@ -331,6 +331,20 @@ void on_connect(
}
}
void on_message(
#if (LIBMOSQUITTO_MAJOR >= 1)
struct mosquitto *mosq,
#endif
void *obj, const struct mosquitto_message *message) {
MqttHandler* handler = reinterpret_cast<MqttHandler*>(obj);
if (!handler || !message || !handler->isRunning()) {
return;
}
string topic(message->topic);
string data(message->payloadlen > 0 ? reinterpret_cast<char*>(message->payload) : "");
handler->notifyTopic(topic, data);
}
MqttHandler::MqttHandler(UserInfo* userInfo, BusHandler* busHandler, MessageMap* messages)
: DataSink(userInfo, "mqtt"), DataSource(busHandler), WaitThread(), m_messages(messages), m_connected(false),
@@ -411,6 +425,7 @@ MqttHandler::MqttHandler(UserInfo* userInfo, BusHandler* busHandler, MessageMap*
}
#endif
mosquitto_connect_callback_set(m_mosquitto, on_connect);
mosquitto_message_callback_set(m_mosquitto, on_message);
int ret;
#if (LIBMOSQUITTO_MAJOR >= 1)
ret = mosquitto_connect(m_mosquitto, g_host, g_port, 60);
@@ -453,26 +468,11 @@ void MqttHandler::start() {
}
}
void on_message(
#if (LIBMOSQUITTO_MAJOR >= 1)
struct mosquitto *mosq,
#endif
void *obj, const struct mosquitto_message *message) {
MqttHandler* handler = reinterpret_cast<MqttHandler*>(obj);
if (!handler || !message || !handler->isRunning()) {
return;
}
string topic(message->topic);
string data(message->payloadlen > 0 ? reinterpret_cast<char*>(message->payload) : "");
handler->notifyTopic(topic, data);
}
void MqttHandler::notifyConnected() {
if (m_mosquitto && isRunning()) {
const string sep = (g_publishFormat & OF_JSON) ? "\"" : "";
publishTopic(m_globalTopic+"version", sep + (PACKAGE_STRING "." REVISION) + sep, true);
publishTopic(m_globalTopic+"running", "true", true);
mosquitto_message_callback_set(m_mosquitto, on_message);
mosquitto_subscribe(m_mosquitto, nullptr, m_subscribeTopic.c_str(), 0);
}
}