File content as of revision 16:fd155e824a80:

/*******************************************************************************
 * Copyright (c) 2014 IBM Corp.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v1.0 which accompany this distribution.
 *
 * The Eclipse Public License is available at
 *    http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 *   http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *    Ian Craggs - initial API and implementation and/or initial documentation
 *******************************************************************************/
 
 /**
  This is a sample program to illustrate the use of the MQTT Client library
  on the mbed platform.  The Client class requires two classes which mediate
  access to system interfaces for networking and timing.  As long as these two
  classes provide the required public programming interfaces, it does not matter
  what facilities they use underneath. In this program, they use the mbed
  system libraries.
 
 */
/*
 * Supported for GsinSpan Wi-Fi Module.
 * Modified by gsfan
 *   src: http://developer.mbed.org/teams/mqtt/code/HelloMQTT/
 */

#include "mbed.h"
#include "GSwifiInterface.h"

//#define MBED_APPLICATION_BOARD

#define SEC  GSwifi::SEC_WPA_PSK
#define SSID "SSID"
#define PASS "PASSPHRASE"


#ifdef MBED_APPLICATION_BOARD
#include "C12832.h"
C12832 lcd(p5, p7, p6, p8, p11);
#else
#define lcd pc
#endif

#include "MQTTGSwifi.h"
#include "MQTTClient.h"

int arrivedcount = 0;
GSwifiInterface *gs;
Serial pc(USBTX, USBRX);

void messageArrived(MQTT::MessageData& md)
{
    MQTT::Message &message = md.message;
#ifdef MBED_APPLICATION_BOARD
    lcd.cls();
    lcd.locate(0,3);
#endif
    printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\n", message.qos, message.retained, message.dup, message.id);
    printf("Payload %.*s\n", message.payloadlen, (char*)message.payload);
    ++arrivedcount;
    lcd.puts((char*)message.payload);
}


int main(int argc, char* argv[])
{   
    pc.baud(115200);
//    gs = new GSwifiInterface(p13, p14, p12, P0_22, p21, NC, 115200); //tx, rx, cts, rts, reset, alarm, baud
    gs = new GSwifiInterface(p9, p10, NC, NC, p30, NC, 9600); //tx, rx, cts, rts, reset, alarm, baud
    wait_ms(200);
    lcd.printf("Connecting...\n");
    gs->init(); //Use DHCP
    if (gs->connect(SEC, SSID, PASS)) return -1; // join the network
    lcd.printf("IP Address is %s\n", gs->getIPAddress());

    MQTTGSwifi ipstack = MQTTGSwifi(gs);
    float version = 0.47;
    char* topic = "mbed-sample";
    
    lcd.printf("Version is %f\n", version);
    printf("Version is %f\n", version);
              
    MQTT::Client<MQTTGSwifi, Countdown> client = MQTT::Client<MQTTGSwifi, Countdown>(ipstack);
    
    char* hostname = "m2m.eclipse.org";
    int port = 1883;
    lcd.printf("Connecting to %s:%d\n", hostname, port);
    int rc = ipstack.connect(hostname, port);
    if (rc != 0)
        lcd.printf("rc from TCP connect is %d\n", rc);
 
    MQTTPacket_connectData data = MQTTPacket_connectData_initializer;       
    data.MQTTVersion = 3;
    data.clientID.cstring = "mbed-sample";
    data.username.cstring = "testuser";
    data.password.cstring = "testpassword";
    if ((rc = client.connect(&data)) != 0)
        lcd.printf("rc from MQTT connect is %d\n", rc);
    
    if ((rc = client.subscribe(topic, MQTT::QOS1, messageArrived)) != 0)
        lcd.printf("rc from MQTT subscribe is %d\n", rc);

    MQTT::Message message;

    // QoS 0
    char buf[100];
    sprintf(buf, "Hello World!  QoS 0 message from app version %f\n", version);
    message.qos = MQTT::QOS0;
    message.retained = false;
    message.dup = false;
    message.payload = (void*)buf;
    message.payloadlen = strlen(buf)+1;
    rc = client.publish(topic, &message);
    while (arrivedcount < 1)
        client.yield(100);
        
    // QoS 1
    sprintf(buf, "Hello World!  QoS 1 message from app version %f\n", version);
    message.qos = MQTT::QOS1;
    message.payloadlen = strlen(buf)+1;
    rc = client.publish(topic, &message);
    while (arrivedcount < 2)
        client.yield(100);
        
    // QoS 2
    sprintf(buf, "Hello World!  QoS 2 message from app version %f\n", version);
    message.qos = MQTT::QOS2;
    message.payloadlen = strlen(buf)+1;
    rc = client.publish(topic, &message);
    while (arrivedcount < 3)
        client.yield(100);
        
    // n * QoS 2
    for (int i = 1; i <= 10; ++i)
    {
        sprintf(buf, "Hello World!  QoS 2 message number %d from app version %f\n", i, version);
        message.qos = MQTT::QOS2;
        message.payloadlen = strlen(buf)+1;
        rc = client.publish(topic, &message);
        while (arrivedcount < i + 3)
            client.yield(100);
    }
    
    if ((rc = client.unsubscribe(topic)) != 0)
        printf("rc from unsubscribe was %d\n", rc);
    
    if ((rc = client.disconnect()) != 0)
        printf("rc from disconnect was %d\n", rc);
    
    ipstack.disconnect();
    
#ifdef MBED_APPLICATION_BOARD
    lcd.cls();
    lcd.locate(0,3);
#endif
    lcd.printf("Version %.2f: finish %d msgs\n", version, arrivedcount);
    printf("Finishing with %d messages received\n", arrivedcount);
    
    return 0;
}