yh Tang / MQTT_ON_AWS

USE YHTANG AWS ACCOUNT TO TEST MQTT

Dependencies:   MQTTPacket FP

Dependents:   NuMaker-mbed-AWS-IoT-example

MQTTmbed.h

Committer:
RobMeades
Date:
2017-08-10
Revision:
47:f313853d22a6
Parent:
43:21da1f744243
Child:
48:187c6d4d7812

File content as of revision 47:f313853d22a6:

#if !defined(MQTT_MBED_H)
#define MQTT_MBED_H

#include "mbed.h"

class Countdown
{
public:
    Countdown()
    {
        t = new Timer();   
    }
    
    Countdown(int ms)
    {
        t = new Timer();
        countdown_ms(ms);   
    }
    
    
    bool expired()
    {
        return t->read_ms() >= interval_end_ms;
    }
    
    void countdown_ms(unsigned long ms)  
    {
        t->stop();
        interval_end_ms = ms;
        t->reset();
        t->start();
    }
    
    void countdown(int seconds)
    {
        countdown_ms((unsigned long)seconds * 1000L);
    }
    
    int left_ms()
    {
        return interval_end_ms - t->read_ms();
    }
    
private:
    Timer *t;
    unsigned long interval_end_ms; 
};

#endif