Duy tran
my customized library
MQTTmbed.h@48:187c6d4d7812, 2017-09-07 (annotated)
- Committer:
- Jan Jongboom
- Date:
- Thu Sep 07 09:53:04 2017 +0100
- Revision:
- 48:187c6d4d7812
- Parent:
- 47:f313853d22a6
- Child:
- 50:c37c8236e84a
Countdown - free Timer when destructing object
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| icraggs | 29:833386b16f3e | 1 | #if !defined(MQTT_MBED_H) |
| icraggs | 29:833386b16f3e | 2 | #define MQTT_MBED_H |
| icraggs | 29:833386b16f3e | 3 | |
| icraggs | 29:833386b16f3e | 4 | #include "mbed.h" |
| icraggs | 29:833386b16f3e | 5 | |
| icraggs | 29:833386b16f3e | 6 | class Countdown |
| icraggs | 29:833386b16f3e | 7 | { |
| icraggs | 29:833386b16f3e | 8 | public: |
| icraggs | 29:833386b16f3e | 9 | Countdown() |
| icraggs | 29:833386b16f3e | 10 | { |
| Jan Jongboom |
48:187c6d4d7812 | 11 | t = new Timer(); |
| icraggs | 29:833386b16f3e | 12 | } |
| Jan Jongboom |
48:187c6d4d7812 | 13 | |
| icraggs | 29:833386b16f3e | 14 | Countdown(int ms) |
| icraggs | 29:833386b16f3e | 15 | { |
| RobMeades | 47:f313853d22a6 | 16 | t = new Timer(); |
| Jan Jongboom |
48:187c6d4d7812 | 17 | countdown_ms(ms); |
| icraggs | 29:833386b16f3e | 18 | } |
| Jan Jongboom |
48:187c6d4d7812 | 19 | |
| Jan Jongboom |
48:187c6d4d7812 | 20 | ~Countdown() |
| Jan Jongboom |
48:187c6d4d7812 | 21 | { |
| Jan Jongboom |
48:187c6d4d7812 | 22 | delete t; |
| Jan Jongboom |
48:187c6d4d7812 | 23 | } |
| Jan Jongboom |
48:187c6d4d7812 | 24 | |
| icraggs | 29:833386b16f3e | 25 | bool expired() |
| icraggs | 29:833386b16f3e | 26 | { |
| RobMeades | 47:f313853d22a6 | 27 | return t->read_ms() >= interval_end_ms; |
| icraggs | 29:833386b16f3e | 28 | } |
| Jan Jongboom |
48:187c6d4d7812 | 29 | |
| Jan Jongboom |
48:187c6d4d7812 | 30 | void countdown_ms(unsigned long ms) |
| icraggs | 29:833386b16f3e | 31 | { |
| RobMeades | 47:f313853d22a6 | 32 | t->stop(); |
| icraggs | 29:833386b16f3e | 33 | interval_end_ms = ms; |
| RobMeades | 47:f313853d22a6 | 34 | t->reset(); |
| RobMeades | 47:f313853d22a6 | 35 | t->start(); |
| icraggs | 29:833386b16f3e | 36 | } |
| Jan Jongboom |
48:187c6d4d7812 | 37 | |
| icraggs | 29:833386b16f3e | 38 | void countdown(int seconds) |
| icraggs | 29:833386b16f3e | 39 | { |
| icraggs | 43:21da1f744243 | 40 | countdown_ms((unsigned long)seconds * 1000L); |
| icraggs | 29:833386b16f3e | 41 | } |
| Jan Jongboom |
48:187c6d4d7812 | 42 | |
| icraggs | 29:833386b16f3e | 43 | int left_ms() |
| icraggs | 29:833386b16f3e | 44 | { |
| RobMeades | 47:f313853d22a6 | 45 | return interval_end_ms - t->read_ms(); |
| icraggs | 29:833386b16f3e | 46 | } |
| Jan Jongboom |
48:187c6d4d7812 | 47 | |
| icraggs | 29:833386b16f3e | 48 | private: |
| RobMeades | 47:f313853d22a6 | 49 | Timer *t; |
| Jan Jongboom |
48:187c6d4d7812 | 50 | unsigned long interval_end_ms; |
| icraggs | 29:833386b16f3e | 51 | }; |
| icraggs | 29:833386b16f3e | 52 | |
| icraggs | 29:833386b16f3e | 53 | #endif |