Junichi Katsu / Mbed OS mbed-os-example-milkcocoa

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Show/hide line numbers MQTTmbed.h Source File

MQTTmbed.h

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