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Merge pull request #94 from lorenzph/improve-reliability 

Improve reliability
develop
Tuan PM 2016-02-17 10:54:01 +07:00
rodzic a5f072bcb1 ecffa17bac
commit 1843a1efb4
2 zmienionych plików z 53 dodań i 33 usunięć
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2
mqtt/include/mqtt.h
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@ -70,6 +70,7 @@ typedef enum {
DNS_RESOLVE,
TCP_DISCONNECTING,
TCP_DISCONNECTED,
TCP_RECONNECT_DISCONNECTING,
TCP_RECONNECT_REQ,
TCP_RECONNECT,
TCP_CONNECTING,
@ -80,6 +81,7 @@ typedef enum {
MQTT_SUBSCIBE_SEND,
MQTT_SUBSCIBE_SENDING,
MQTT_DATA,
MQTT_KEEPALIVE_SEND,
MQTT_PUBLISH_RECV,
MQTT_PUBLISHING,
MQTT_DELETING,

84
mqtt/mqtt.c
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@ -113,6 +113,42 @@ deliver_publish(MQTT_Client* client, uint8_t* message, int length)
}
void ICACHE_FLASH_ATTR
mqtt_send_keepalive(MQTT_Client *client)
{
INFO("\r\nMQTT: Send keepalive packet to %s:%d!\r\n", client->host, client->port);
client->mqtt_state.outbound_message = mqtt_msg_pingreq(&client->mqtt_state.mqtt_connection);
client->mqtt_state.pending_msg_type = MQTT_MSG_TYPE_PINGREQ;
client->mqtt_state.pending_msg_type = mqtt_get_type(client->mqtt_state.outbound_message->data);
client->mqtt_state.pending_msg_id = mqtt_get_id(client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
client->sendTimeout = MQTT_SEND_TIMOUT;
INFO("MQTT: Sending, type: %d, id: %04X\r\n", client->mqtt_state.pending_msg_type, client->mqtt_state.pending_msg_id);
err_t result = ESPCONN_OK;
if (client->security) {
#ifdef MQTT_SSL_ENABLE
result = espconn_secure_send(client->pCon, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
#else
INFO("TCP: Do not support SSL\r\n");
#endif
}
else {
result = espconn_send(client->pCon, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
}
client->mqtt_state.outbound_message = NULL;
if(ESPCONN_OK == result) {
client->keepAliveTick = 0;
client->connState = MQTT_DATA;
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
else {
client->connState = TCP_RECONNECT_DISCONNECTING;
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
}
/**
* @brief Delete tcp client and free all memory
* @param mqttClient: The mqtt client which contain TCP client
@ -237,6 +273,7 @@ READPACKET:
}
break;
case MQTT_DATA:
case MQTT_KEEPALIVE_SEND:
client->mqtt_state.message_length_read = len;
client->mqtt_state.message_length = mqtt_get_total_length(client->mqtt_state.in_buffer, client->mqtt_state.message_length_read);
@ -338,7 +375,8 @@ mqtt_tcpclient_sent_cb(void *arg)
MQTT_Client* client = (MQTT_Client *)pCon->reverse;
INFO("TCP: Sent\r\n");
client->sendTimeout = 0;
if (client->connState == MQTT_DATA && client->mqtt_state.pending_msg_type == MQTT_MSG_TYPE_PUBLISH) {
if ((client->connState == MQTT_DATA || client->connState == MQTT_KEEPALIVE_SEND)
&& client->mqtt_state.pending_msg_type == MQTT_MSG_TYPE_PUBLISH) {
if (client->publishedCb)
client->publishedCb((uint32_t*)client);
}
@ -352,37 +390,8 @@ void ICACHE_FLASH_ATTR mqtt_timer(void *arg)
if (client->connState == MQTT_DATA) {
client->keepAliveTick ++;
if (client->keepAliveTick > client->mqtt_state.connect_info->keepalive) {
INFO("\r\nMQTT: Send keepalive packet to %s:%d!\r\n", client->host, client->port);
client->mqtt_state.outbound_message = mqtt_msg_pingreq(&client->mqtt_state.mqtt_connection);
client->mqtt_state.pending_msg_type = MQTT_MSG_TYPE_PINGREQ;
client->mqtt_state.pending_msg_type = mqtt_get_type(client->mqtt_state.outbound_message->data);
client->mqtt_state.pending_msg_id = mqtt_get_id(client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
client->sendTimeout = MQTT_SEND_TIMOUT;
INFO("MQTT: Sending, type: %d, id: %04X\r\n", client->mqtt_state.pending_msg_type, client->mqtt_state.pending_msg_id);
err_t result = ESPCONN_OK;
if (client->security) {
#ifdef MQTT_SSL_ENABLE
result = espconn_secure_send(client->pCon, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
#else
INFO("TCP: Do not support SSL\r\n");
#endif
}
else {
result = espconn_send(client->pCon, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
}
client->mqtt_state.outbound_message = NULL;
if(ESPCONN_OK == result) {
client->keepAliveTick = 0;
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
else {
client->connState = TCP_RECONNECT_REQ;
}
client->connState = MQTT_KEEPALIVE_SEND;
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
} else if (client->connState == TCP_RECONNECT_REQ) {
@ -585,12 +594,14 @@ MQTT_Task(os_event_t *e)
case TCP_RECONNECT_REQ:
break;
case TCP_RECONNECT:
mqtt_tcpclient_delete(client);
MQTT_Connect(client);
INFO("TCP: Reconnect to: %s:%d\r\n", client->host, client->port);
client->connState = TCP_CONNECTING;
break;
case MQTT_DELETING:
case TCP_DISCONNECTING:
case TCP_RECONNECT_DISCONNECTING:
if (client->security) {
#ifdef MQTT_SSL_ENABLE
espconn_secure_connect(client->pCon);
@ -610,6 +621,9 @@ MQTT_Task(os_event_t *e)
INFO("MQTT: Deleted client\r\n");
mqtt_client_delete(client);
break;
case MQTT_KEEPALIVE_SEND:
mqtt_send_keepalive(client);
break;
case MQTT_DATA:
if (QUEUE_IsEmpty(&client->msgQueue) || client->sendTimeout != 0) {
break;
@ -737,7 +751,11 @@ MQTT_InitLWT(MQTT_Client *mqttClient, uint8_t* will_topic, uint8_t* will_msg, ui
void ICACHE_FLASH_ATTR
MQTT_Connect(MQTT_Client *mqttClient)
{
MQTT_Disconnect(mqttClient);
// Do not connect if this client is already connected otherwise the
// two espconn connections may interfere causing unexpected behaviour.
if (mqttClient->pCon) {
return;
}
mqttClient->pCon = (struct espconn *)os_zalloc(sizeof(struct espconn));
mqttClient->pCon->type = ESPCONN_TCP;
mqttClient->pCon->state = ESPCONN_NONE;