aboutsummaryrefslogtreecommitdiffstats
path: root/include/distortos/SoftwareTimer.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'include/distortos/SoftwareTimer.hpp')
-rw-r--r--include/distortos/SoftwareTimer.hpp130
1 files changed, 130 insertions, 0 deletions
diff --git a/include/distortos/SoftwareTimer.hpp b/include/distortos/SoftwareTimer.hpp
new file mode 100644
index 0000000..c10060c
--- /dev/null
+++ b/include/distortos/SoftwareTimer.hpp
@@ -0,0 +1,130 @@
+/**
+ * \file
+ * \brief SoftwareTimer class header
+ *
+ * \author Copyright (C) 2015 Kamil Szczygiel http://www.distortec.com http://www.freddiechopin.info
+ *
+ * \par License
+ * This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not
+ * distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDE_DISTORTOS_SOFTWARETIMER_HPP_
+#define INCLUDE_DISTORTOS_SOFTWARETIMER_HPP_
+
+#include "distortos/TickClock.hpp"
+
+namespace distortos
+{
+
+/**
+ * \brief SoftwareTimer class is an abstract interface for software timers
+ *
+ * \ingroup softwareTimers
+ */
+
+class SoftwareTimer
+{
+public:
+
+ /**
+ * \brief SoftwareTimer's destructor
+ */
+
+ virtual ~SoftwareTimer() = 0;
+
+ /**
+ * \return true if the timer is running, false otherwise
+ */
+
+ virtual bool isRunning() const = 0;
+
+ /**
+ * \brief Starts the timer.
+ *
+ * \note The duration will never be shorter, so one additional tick is always added to the duration.
+ *
+ * \param [in] duration is the duration after which the function will be executed
+ *
+ * \return 0 on success, error code otherwise
+ */
+
+ int start(TickClock::duration duration);
+
+ /**
+ * \brief Starts the timer.
+ *
+ * \note The duration must not be shorter, so one additional tick is always added to the duration.
+ *
+ * \tparam Rep is type of tick counter
+ * \tparam Period is std::ratio type representing the tick period of the clock, in seconds
+ *
+ * \param [in] duration is the duration after which the function will be executed
+ *
+ * \return 0 on success, error code otherwise
+ */
+
+ template<typename Rep, typename Period>
+ int start(const std::chrono::duration<Rep, Period> duration)
+ {
+ return start(std::chrono::duration_cast<TickClock::duration>(duration));
+ }
+
+ /**
+ * \brief Starts the timer.
+ *
+ * \param [in] timePoint is the time point at which the function will be executed
+ *
+ * \return 0 on success, error code otherwise
+ */
+
+ virtual int start(TickClock::time_point timePoint) = 0;
+
+ /**
+ * \brief Starts the timer.
+ *
+ * \tparam Duration is a std::chrono::duration type used to measure duration
+ *
+ * \param [in] timePoint is the time point at which the function will be executed
+ *
+ * \return 0 on success, error code otherwise
+ */
+
+ template<typename Duration>
+ int start(const std::chrono::time_point<TickClock, Duration> timePoint)
+ {
+ return start(std::chrono::time_point_cast<TickClock::duration>(timePoint));
+ }
+
+ /**
+ * \brief Stops the timer.
+ *
+ * \return 0 on success, error code otherwise
+ */
+
+ virtual int stop() = 0;
+
+protected:
+
+ /**
+ * \brief Software timer's function runner
+ *
+ * \param [in] softwareTimer is a reference to SoftwareTimer object that is being run
+ */
+
+ static void softwareTimerRunner(SoftwareTimer& softwareTimer);
+
+private:
+
+ /**
+ * \brief "Run" function of software timer
+ *
+ * This should be overridden by derived classes.
+ */
+
+ virtual void run() = 0;
+};
+
+} // namespace distortos
+
+#endif // INCLUDE_DISTORTOS_SOFTWARETIMER_HPP_