Commit Iniziale, progetto funzionante caricato su box ETcontroller in

cantina
2019-10-09 23:25:44 +02:00
commit c6e4e461ca
555 changed files with 118433 additions and 0 deletions
--- a/Eth_Com/MQTT_Com.cpp
+++ b/Eth_Com/MQTT_Com.cpp
@@ -0,0 +1,97 @@
+#include "MQTT_Com.h"
+#include "MQTTEthernet.h"
+
+int connack_rc = 0; // MQTT connack return code
+const char* ip_addr = "";
+bool netConnecting = false;
+int connectTimeout = 1000;
+bool mqttConnecting = false;
+bool netConnected = false;
+bool connected = false;
+int retryAttempt = 0;
+char subscription_url[MQTT_MAX_PAYLOAD_SIZE];
+
+
+int mconnect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) {
+    char hostname[strlen(HOSTNAME) + 1];  
+    sprintf(hostname, "%s", HOSTNAME);
+
+    // Network debug statements
+    LOG("=====================================\n");
+    LOG("Connecting Ethernet.\n");
+    LOG("Nucleo IP ADDRESS: %s\n", ipstack->getEth().getIPAddress());
+    LOG("Nucleo MAC ADDRESS: %s\n", ipstack->getEth().getMACAddress());
+    LOG("Server Hostname: %s port: %d\n", hostname, MQTT_PORT);
+    LOG("=====================================\n");
+
+    
+    ///////// CONNECT TO TCP SOCKET /////////////////
+    netConnecting = true;
+
+    int rc = ipstack->connect(hostname, MQTT_PORT);
+    if (rc != 0) {
+        WARN("IP Stack connect returned: %d\n", rc);
+        return rc;
+    }
+    LOG("--->TCP Connected\n");
+    netConnected = true;
+    netConnecting = false;
+
+    ///////// CONNECT TO MQTT BROKER /////////////////
+    mqttConnecting = true;
+    MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
+    data.MQTTVersion=3;
+    data.struct_version=0;
+    data.clientID.cstring = "ETcontroller";
+
+    if ((rc = client->connect(&data)) == 0){
+        connected = true;
+        LOG("--->MQTT Connected\n");
+        mqttConnecting = false;         
+    } else {
+        WARN("MQTT connect returned %d\n", rc);
+    }
+
+    if (rc >= 0)
+        connack_rc = rc;
+    return rc;
+}
+
+int getConnTimeout(int attemptNumber) {  // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute
+   // after 20 attempts, retry every 10 minutes
+    return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600;
+}
+
+void attemptConnect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) {
+    connected = false;
+           
+    while (mconnect(client, ipstack) != MQTT_CONNECTION_ACCEPTED) {
+        if (connack_rc == MQTT_NOT_AUTHORIZED || connack_rc == MQTT_BAD_USERNAME_OR_PASSWORD) {
+            WARN ("File: %s, Line: %d Error: %d\n",__FILE__,__LINE__, connack_rc);
+            return; // don't reattempt to connect if credentials are wrong
+        } 
+        int timeout = getConnTimeout(++retryAttempt);
+        WARN("Retry attempt number %d waiting %d\n", retryAttempt, timeout);
+        
+        // if ipstack and client were on the heap we could deconstruct and goto a label where they are constructed
+        //  or maybe just add the proper members to do this disconnect and call attemptConnect(...)        
+        // this works - reset the system when the retry count gets to a threshold
+        if (retryAttempt == 5)
+            NVIC_SystemReset();
+        else
+            wait(timeout);
+    }
+}
+
+int publish(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack,char* topic, char* msg) {
+    MQTT::Message message;            
+    char buf[MQTT_MAX_PAYLOAD_SIZE];
+    
+    sprintf(buf,"%s" ,msg);
+    message.qos = MQTT::QOS0;
+    message.retained = false;
+    message.dup = false;
+    message.payload = (void*)buf;
+    message.payloadlen = strlen(buf);
+    return client->publish(topic, &message);
+}