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sys/event: add API to start periodic event without initial delay #20911

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merged 3 commits into from
Oct 16, 2024
+49 −4
Merged

sys/event: add API to start periodic event without initial delay #20911

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2b68258
sys/ztimer: add ztimer_periodic_start_now()
fabian18 Oct 14, 2024
90473c6
sys/event: add event_periodic_start_now()
fabian18 Oct 14, 2024
d4cd708
tests/sys/event_ztimer: add event_periodic_start_now() to test
fabian18 Oct 14, 2024
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sys/event: add event_periodic_start_now()
@fabian18
fabian18 committed Oct 14, 2024
commit 90473c62f060ff92b99f1e97636a9658c3e3fa2c
1 change: 0 additions & 1 deletion sys/event/periodic.c
View file
Original file line number Diff line number Diff line change
@@ -25,7 +25,6 @@
static bool _event_periodic_callback(void *arg)
{
event_periodic_t *event_periodic = (event_periodic_t *)arg;

event_post(event_periodic->queue, event_periodic->event);

if (event_periodic->count && --event_periodic->count == 0) {
22 changes: 22 additions & 0 deletions sys/include/event/periodic.h
View file
Original file line number Diff line number Diff line change
@@ -72,6 +72,28 @@ typedef struct {
void event_periodic_init(event_periodic_t *event_periodic, ztimer_clock_t *clock,
event_queue_t *queue, event_t *event);

/**
* @brief Starts a periodic timeout without delay for the first occurrence
*
* This will make the event as configured in @p event_periodic be triggered
* at every interval ticks (based on event_periodic->clock).
*
* @note: the used event_periodic struct must stay valid until after the timeout
* event has been processed!
*
* @note: this function does not touch the current count value.
*
* @note: the periodic event will start without delay.
*
* @param[in] event_periodic event_timout context object to use
* @param[in] interval period length for the event
*/
static inline void event_periodic_start_now(event_periodic_t *event_periodic, uint32_t interval)
{
event_periodic->timer.interval = interval;
ztimer_periodic_start_now(&event_periodic->timer);
}

/**
* @brief Starts a periodic timeout
*