Diff: MQTT/MQTTmbed.h

Revision:

0:f4dbe435e64c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MQTT/MQTTmbed.h	Wed Jan 17 11:30:51 2018 +0100
@@ -0,0 +1,48 @@
+#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
\ No newline at end of file