mirror of https://github.com/ARMmbed/mbed-os.git
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/**
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/ _____) _ | |
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( (____ _____ ____ _| |_ _____ ____| |__
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\____ \| ___ | (_ _) ___ |/ ___) _ \
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_____) ) ____| | | || |_| ____( (___| | | |
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(______/|_____)_|_|_| \__)_____)\____)_| |_|
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(C)2013 Semtech
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Description: Timer objects and scheduling management
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License: Revised BSD License, see LICENSE.TXT file include in the project
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Maintainer: Miguel Luis and Gregory Cristian
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Copyright (c) 2017, Arm Limited and affiliates.
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SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef MBED_LORAWAN_SYS_TIMER_H__
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#define MBED_LORAWAN_SYS_TIMER_H__
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#include <stdint.h>
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#include "events/EventQueue.h"
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#include "lorawan_data_structures.h"
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class LoRaWANTimeHandler {
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public:
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LoRaWANTimeHandler();
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~LoRaWANTimeHandler();
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/** Activates the timer subsystem.
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*
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* Embeds EventQueue object to timer subsystem which is subsequently
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* used to extract timer information.
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*
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* @param [in] queue Handle to EventQueue object
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*/
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void activate_timer_subsystem(events::EventQueue *queue);
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/** Read the current time.
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*
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* @return time The current time.
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*/
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lorawan_time_t get_current_time(void);
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/** Return the time elapsed since a fixed moment in time.
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*
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* @param [in] saved_time The fixed moment in time.
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* @return time The elapsed time.
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*/
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lorawan_time_t get_elapsed_time(lorawan_time_t saved_time);
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/** Initializes the timer object.
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*
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* @remark The TimerSetValue function must be called before starting the timer.
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* This function initializes the time-stamp and reloads the value at 0.
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*
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* @param [in] obj The structure containing the timer object parameters.
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* @param [in] callback The function callback called at the end of the timeout.
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*/
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void init(timer_event_t &obj, mbed::Callback<void()> callback);
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/** Starts and adds the timer object to the list of timer events.
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*
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* @param [in] obj The structure containing the timer object parameters.
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* @param [in] timeout The new timeout value.
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*/
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void start(timer_event_t &obj, const uint32_t timeout);
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/** Stops and removes the timer object from the list of timer events.
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*
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* @param [in] obj The structure containing the timer object parameters.
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*/
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void stop(timer_event_t &obj);
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private:
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events::EventQueue *_queue;
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};
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#endif // MBED_LORAWAN_SYS_TIMER_H__
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