diff options
Diffstat (limited to 'os/rt/include')
-rw-r--r-- | os/rt/include/chvt.h | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/os/rt/include/chvt.h b/os/rt/include/chvt.h index fa859e8fe..66eda87f3 100644 --- a/os/rt/include/chvt.h +++ b/os/rt/include/chvt.h @@ -152,7 +152,6 @@ struct virtual_timer { extern "C" {
#endif
void _vt_init(void);
- bool chVTIsTimeWithinX(systime_t time, systime_t start, systime_t end);
void chVTDoSetI(virtual_timer_t *vtp, systime_t delay,
vtfunc_t vtfunc, void *par);
void chVTDoResetI(virtual_timer_t *vtp);
@@ -222,6 +221,40 @@ static inline systime_t chVTGetSystemTime(void) { }
/**
+ * @brief Returns the elapsed time since the specified start time.
+ *
+ * @param[in] start start time
+ * @return The elapsed time.
+ *
+ * @xclass
+ */
+static inline systime_t chVTTimeElapsedSinceX(systime_t start) {
+
+ return chVTGetSystemTimeX() - start;
+}
+
+/**
+ * @brief Checks if the specified time is within the specified time window.
+ * @note When start==end then the function returns always true because the
+ * whole time range is specified.
+ * @note This function can be called from any context.
+ *
+ * @param[in] time the time to be verified
+ * @param[in] start the start of the time window (inclusive)
+ * @param[in] end the end of the time window (non inclusive)
+ * @retval true current time within the specified time window.
+ * @retval false current time not within the specified time window.
+ *
+ * @xclass
+ */
+static inline bool chVTIsTimeWithinX(systime_t time,
+ systime_t start,
+ systime_t end) {
+
+ return (bool)(time - start < end - start);
+}
+
+/**
* @brief Checks if the current system time is within the specified time
* window.
* @note When start==end then the function returns always true because the
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