Merge remote-tracking branch 'origin/development' into gaisser_countdown_timer

src/fsfw/timemanager/Countdown.cpp

@@ -0,0 +1,51 @@
+#include "fsfw/timemanager/Countdown.h"
+
+Countdown::Countdown(uint32_t initialTimeout): timeout(initialTimeout) {
+}
+
+Countdown::~Countdown() {
+}
+
+ReturnValue_t Countdown::setTimeout(uint32_t milliseconds) {
+	ReturnValue_t returnValue = Clock::getUptime( &startTime );
+	timeout = milliseconds;
+	return returnValue;
+}
+
+bool Countdown::hasTimedOut() const {
+	if ( uint32_t( this->getCurrentTime() - startTime) >= timeout) {
+		return true;
+	} else {
+		return false;
+	}
+}
+
+bool Countdown::isBusy() const {
+	return !hasTimedOut();
+}
+
+ReturnValue_t Countdown::resetTimer() {
+	return setTimeout(timeout);
+}
+
+void Countdown::timeOut() {
+	startTime = this->getCurrentTime() - timeout;
+}
+
+uint32_t Countdown::getRemainingMillis() const {
+	// We fetch the time before the if-statement
+	// to be sure that the return is in
+	// range 0 <= number <= timeout
+	uint32_t currentTime = this->getCurrentTime();
+	if (this->hasTimedOut()){
+		return 0;
+	}else{
+		return (startTime + timeout) - currentTime;
+	}
+}
+
+uint32_t Countdown::getCurrentTime() const {
+	uint32_t currentTime;
+	Clock::getUptime( &currentTime );
+	return currentTime;
+}