Improved time range functions. Reduced size for NIL when tickless mode is used.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6416 35acf78f-673a-0410-8e92-d51de3d6d3f4

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