Vergil Cola / Mbed OS K64FMQTT

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Dependencies:   MQTT

Fork of HelloMQTT by MQTT

main.cpp@1:a1d5c7a6acbc, 2014-02-05 (annotated)

Committer:
icraggs
Date:
Wed Feb 05 10:50:15 2014 +0000
Revision:
1:a1d5c7a6acbc
Parent:
0:0cae29831d01
Child:
2:638c854c0695
Add copyright statement to main program

Who changed what in which revision?

UserRevisionLine numberNew contents of line
icraggs 1:a1d5c7a6acbc 1 /*******************************************************************************
icraggs 1:a1d5c7a6acbc 2 * Copyright (c) 2014 IBM Corp.
icraggs 1:a1d5c7a6acbc 3 *
icraggs 1:a1d5c7a6acbc 4 * All rights reserved. This program and the accompanying materials
icraggs 1:a1d5c7a6acbc 5 * are made available under the terms of the Eclipse Public License v1.0
icraggs 1:a1d5c7a6acbc 6 * and Eclipse Distribution License v1.0 which accompany this distribution.
icraggs 1:a1d5c7a6acbc 7 *
icraggs 1:a1d5c7a6acbc 8 * The Eclipse Public License is available at
icraggs 1:a1d5c7a6acbc 9 * http://www.eclipse.org/legal/epl-v10.html
icraggs 1:a1d5c7a6acbc 10 * and the Eclipse Distribution License is available at
icraggs 1:a1d5c7a6acbc 11 * http://www.eclipse.org/org/documents/edl-v10.php.
icraggs 1:a1d5c7a6acbc 12 *
icraggs 1:a1d5c7a6acbc 13 * Contributors:
icraggs 1:a1d5c7a6acbc 14 * Ian Craggs - initial API and implementation and/or initial documentation
icraggs 1:a1d5c7a6acbc 15 *******************************************************************************/
icraggs 1:a1d5c7a6acbc 16
icraggs 0:0cae29831d01 17 #include "mbed.h"
icraggs 0:0cae29831d01 18 #include "EthernetInterface.h"
icraggs 0:0cae29831d01 19 #include "C12832_lcd.h"
icraggs 0:0cae29831d01 20
icraggs 0:0cae29831d01 21 #include "MQTTPacket.h"
icraggs 0:0cae29831d01 22
icraggs 0:0cae29831d01 23 DigitalOut myled(LED2);
icraggs 0:0cae29831d01 24 C12832_LCD lcd;
icraggs 0:0cae29831d01 25
icraggs 0:0cae29831d01 26 int publish()
icraggs 0:0cae29831d01 27 {
icraggs 0:0cae29831d01 28 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
icraggs 0:0cae29831d01 29 int rc = 0;
icraggs 0:0cae29831d01 30 char buf[200];
icraggs 0:0cae29831d01 31 int buflen = sizeof(buf);
icraggs 0:0cae29831d01 32 TCPSocketConnection mysock;
icraggs 0:0cae29831d01 33 MQTTString topicString = MQTTString_initializer;
icraggs 0:0cae29831d01 34 char* payload = "I'm alive!";
icraggs 0:0cae29831d01 35 int payloadlen = strlen(payload);
icraggs 0:0cae29831d01 36 int len = 0;
icraggs 0:0cae29831d01 37
icraggs 0:0cae29831d01 38 mysock.connect("m2m.eclipse.org", 1883);
icraggs 0:0cae29831d01 39
icraggs 0:0cae29831d01 40 data.clientID.cstring = "mbed test client - Ian Craggs";
icraggs 0:0cae29831d01 41 data.keepAliveInterval = 20;
icraggs 0:0cae29831d01 42 data.cleansession = 1;
icraggs 0:0cae29831d01 43 data.MQTTVersion = 3;
icraggs 0:0cae29831d01 44
icraggs 0:0cae29831d01 45 len = MQTTSerialize_connect(buf, buflen, &data);
icraggs 0:0cae29831d01 46
icraggs 0:0cae29831d01 47 topicString.cstring = "mbed NXP LPC1768";
icraggs 0:0cae29831d01 48 len += MQTTSerialize_publish(buf + len, buflen - len, 0, 0, 0, 0, topicString, payload, payloadlen);
icraggs 0:0cae29831d01 49
icraggs 0:0cae29831d01 50 len += MQTTSerialize_disconnect(buf + len, buflen - len);
icraggs 0:0cae29831d01 51
icraggs 0:0cae29831d01 52 rc = 0;
icraggs 0:0cae29831d01 53 while (rc < len)
icraggs 0:0cae29831d01 54 {
icraggs 0:0cae29831d01 55 int rc1 = mysock.send(buf, len);
icraggs 0:0cae29831d01 56 if (rc1 == -1)
icraggs 0:0cae29831d01 57 {
icraggs 0:0cae29831d01 58 lcd.printf("Send failed\n");
icraggs 0:0cae29831d01 59 break;
icraggs 0:0cae29831d01 60 }
icraggs 0:0cae29831d01 61 else
icraggs 0:0cae29831d01 62 rc += rc1;
icraggs 0:0cae29831d01 63 }
icraggs 0:0cae29831d01 64 if (rc == len)
icraggs 0:0cae29831d01 65 lcd.printf("Send succeeded\n");
icraggs 0:0cae29831d01 66 wait(0.2);
icraggs 0:0cae29831d01 67
icraggs 0:0cae29831d01 68 return 0;
icraggs 0:0cae29831d01 69 }
icraggs 0:0cae29831d01 70
icraggs 1:a1d5c7a6acbc 71 int main()
icraggs 1:a1d5c7a6acbc 72 {
icraggs 0:0cae29831d01 73 EthernetInterface eth;
icraggs 0:0cae29831d01 74 eth.init(); //Use DHCP
icraggs 0:0cae29831d01 75 eth.connect();
icraggs 0:0cae29831d01 76 lcd.printf("IP Address is %s\n", eth.getIPAddress());
icraggs 0:0cae29831d01 77
icraggs 1:a1d5c7a6acbc 78 while(1)
icraggs 1:a1d5c7a6acbc 79 {
icraggs 0:0cae29831d01 80 myled = 1;
icraggs 0:0cae29831d01 81 publish();
icraggs 0:0cae29831d01 82 wait(0.2);
icraggs 0:0cae29831d01 83 myled = 0;
icraggs 0:0cae29831d01 84 publish();
icraggs 0:0cae29831d01 85 wait(0.2);
icraggs 0:0cae29831d01 86 }
icraggs 0:0cae29831d01 87
icraggs 0:0cae29831d01 88 eth.disconnect();
icraggs 0:0cae29831d01 89 }