MQTTmbed.h

00001 // hot fix for NonCopyable error
00002 // @Hung Nguyen
00003 
00004 #if !defined(MQTT_MBED_H)
00005 #define MQTT_MBED_H
00006  
00007 #include "mbed.h"
00008 
00009 class Countdown
00010 {
00011 public:
00012     Countdown() {
00013         t = new Timer();   
00014     }
00015     
00016     Countdown(int ms) {
00017         t = new Timer();
00018         countdown_ms(ms);   
00019     }
00020     
00021     ~Countdown() {
00022         delete t;
00023     }
00024     
00025     
00026     bool expired() {
00027         return t->read_ms() >= interval_end_ms;
00028     }
00029     
00030     void countdown_ms(unsigned long ms) {
00031         t->stop();
00032         interval_end_ms = ms;
00033         t->reset();
00034         t->start();
00035     }
00036     
00037     void countdown(int seconds) {
00038         countdown_ms((unsigned long)seconds * 1000L);
00039     }
00040     
00041     int left_ms() {
00042         return interval_end_ms - t->read_ms();
00043     }
00044     
00045 private:
00046     Timer* t;
00047     unsigned long interval_end_ms; 
00048 };
00049  
00050 #endif