Virtual timers new functionality added.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8363 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 35 insertions, 0 deletions

diff --git a/os/rt/include/chvt.h b/os/rt/include/chvt.h
index d44d0b91b..e124a14e3 100644
--- a/os/rt/include/chvt.h
+++ b/os/rt/include/chvt.h
@@ -325,6 +325,41 @@ static inline bool chVTIsSystemTimeWithin(systime_t start, systime_t end) {
 }

 

 /**

+ * @brief   Returns the time interval until the next timer event.

+ * @note    The return value is not perfectly accurate and can report values

+ *          in excess of @p CH_CFG_ST_TIMEDELTA ticks.

+ * @note    The interval returned by this function is only meaningful if

+ *          more timers are not added to the list until the returned time.

+ *

+ * @param[out] timep    pointer to a variable that will contain the time

+ *                      interval until the next timer elapses. This pointer

+ *                      can be @p NULL if the information is not required.

+ * @return              The time, in ticks, until next time event.

+ * @retval false        if the timers list is empty.

+ * @retbal true         if the timers list contains at least one timer.

+ *

+ * @iclass

+ */

+static inline bool chVTGetTimersStateI(systime_t *timep) {

+

+  chDbgCheckClassI();

+

+  if (&ch.vtlist == (virtual_timers_list_t *)ch.vtlist.vt_next)

+    return false;

+

+  if (timep != NULL) {

+#if CH_CFG_ST_TIMEDELTA == 0

+    *timep = ch.vtlist.vt_next->vt_delta;

+#else

+    *timep = ch.vtlist.vt_lasttime + ch.vtlist.vt_next->vt_delta +

+             CH_CFG_ST_TIMEDELTA - chVTGetSystemTimeX();

+#endif

+  }

+

+  return true;

+}

+

+/**

  * @brief   Returns @p true if the specified timer is armed.

  * @pre     The timer must have been initialized using @p chVTObjectInit()

  *          or @p chVTDoSetI().