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-rw-r--r--core/cortex-m/timer.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/core/cortex-m/timer.c b/core/cortex-m/timer.c
index ba45bc8783..0078936f5a 100644
--- a/core/cortex-m/timer.c
+++ b/core/cortex-m/timer.c
@@ -37,6 +37,12 @@ static void expire_timer(task_id_t tskid)
task_set_event(tskid, TASK_EVENT_TIMER, 0);
}
+int timestamp_expired(timestamp_t deadline)
+{
+ timestamp_t now = get_time();
+
+ return ((int64_t)(now.val - deadline.val) >= 0);
+}
void process_timers(int overflow)
{