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esp_timer: add a function to get next alarm time

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This commit is contained in:
Ivan Grokhotkov 2018-04-03 18:12:47 +08:00
parent e3d404bb8f
commit 4ba19abeb6
2 changed files with 19 additions and 0 deletions
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12
components/esp32/esp_timer.c
View file

@ -455,6 +455,18 @@ esp_err_t esp_timer_dump(FILE* stream)
return ESP_OK;
}
int64_t IRAM_ATTR esp_timer_get_next_alarm()
{
int64_t next_alarm = INT64_MAX;
timer_list_lock();
esp_timer_handle_t it = LIST_FIRST(&s_timers);
if (it) {
next_alarm = it->alarm;
}
timer_list_unlock();
return next_alarm;
}
int64_t IRAM_ATTR esp_timer_get_time()
{
return (int64_t) esp_timer_impl_get_time();

7
components/esp32/include/esp_timer.h
View file

@ -189,6 +189,13 @@ esp_err_t esp_timer_delete(esp_timer_handle_t timer);
*/
int64_t esp_timer_get_time();
/**
* @brief Get the timestamp when the next timeout is expected to occur
* @return Timestamp of the nearest timer event, in microseconds.
* The timebase is the same as for the values returned by esp_timer_get_time.
*/
int64_t esp_timer_get_next_alarm();
/**
* @brief Dump the list of timers to a stream
*