yh Tang / MQTT_ON_AWS

USE YHTANG AWS ACCOUNT TO TEST MQTT

Dependencies:   MQTTPacket FP

Dependents:   NuMaker-mbed-AWS-IoT-example

MQTTmbed.h

Committer:
icraggs
Date:
2017-09-25
Revision:
52:3f9919941b86
Parent:
50:c37c8236e84a
Parent:
51:5042d7e56f7e

File content as of revision 52:3f9919941b86:

#if !defined(MQTT_MBED_H)
#define MQTT_MBED_H

#include "mbed.h"

class Countdown
{
public:
    Countdown() : t()
    {
  
    }
    
    Countdown(int ms) : t()
    {
        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