diff options
Diffstat (limited to 'os/kernel/include/chschd.h')
| -rw-r--r-- | os/kernel/include/chschd.h | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/os/kernel/include/chschd.h b/os/kernel/include/chschd.h index c06ed8100..b8406722b 100644 --- a/os/kernel/include/chschd.h +++ b/os/kernel/include/chschd.h @@ -66,6 +66,7 @@ *
* @brief Ready list header.
*/
+#if !defined(PORT_OPTIMIZED_READYLIST_STRUCT) || defined(__DOXYGEN__)
typedef struct {
ThreadsQueue r_queue; /**< @brief Threads queue. */
tprio_t r_prio; /**< @brief This field must be
@@ -85,10 +86,11 @@ typedef struct { thread. */
#endif
} ReadyList;
+#endif /* !defined(PORT_OPTIMIZED_READYLIST_STRUCT) */
-#if !defined(__DOXYGEN__)
+#if !defined(PORT_OPTIMIZED_RLIST_EXT) && !defined(__DOXYGEN__)
extern ReadyList rlist;
-#endif
+#endif /* !defined(PORT_OPTIMIZED_RLIST_EXT) */
#ifdef CH_CURRP_REGISTER_CACHE
register Thread *currp asm(CH_CURRP_REGISTER_CACHE);
@@ -116,18 +118,34 @@ extern "C" { #endif
/**
+ * @brief Determines if the current thread must reschedule.
+ * @details This function returns @p TRUE if there is a ready thread with
+ * higher priority.
+ */
+#if !defined(PORT_OPTIMIZED_ISRESCHREQUIREDI) && !defined(__DOXYGEN__)
+#define chSchIsRescRequiredI() (firstprio(&rlist.r_queue) > currp->p_prio)
+#endif /* !defined(PORT_OPTIMIZED_ISRESCHREQUIREDI) */
+
+/**
* @brief Determines if yielding is possible.
* @details This function returns @p TRUE if there is a ready thread with
* equal or higher priority.
*/
+#if !defined(PORT_OPTIMIZED_CANYIELDS) && !defined(__DOXYGEN__)
#define chSchCanYieldS() (firstprio(&rlist.r_queue) >= currp->p_prio)
+#endif /* !defined(PORT_OPTIMIZED_CANYIELDS) */
/**
- * @brief Determines if the current thread must reschedule.
- * @details This function returns @p TRUE if there is a ready thread with
- * higher priority.
+ * @brief Yields the time slot.
+ * @details Yields the CPU control to the next thread in the ready list with
+ * equal or higher priority, if any.
*/
-#define chSchIsRescRequiredI() (firstprio(&rlist.r_queue) > currp->p_prio)
+#if !defined(PORT_OPTIMIZED_DOYIELDS) || defined(__DOXYGEN__)
+#define chSchDoYieldS(void) { \
+ if (chSchCanYieldS()) \
+ chSchDoRescheduleI(); \
+}
+#endif /* !defined(PORT_OPTIMIZED_DOYIELDS) */
#endif /* _CHSCHD_H_ */
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