diff options
Diffstat (limited to 'os/kernel/include/chschd.h')
| -rw-r--r-- | os/kernel/include/chschd.h | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/os/kernel/include/chschd.h b/os/kernel/include/chschd.h index cd545a05e..0e933e8ba 100644 --- a/os/kernel/include/chschd.h +++ b/os/kernel/include/chschd.h @@ -134,14 +134,14 @@ extern "C" { #if !defined(PORT_OPTIMIZED_WAKEUPS)
void chSchWakeupS(Thread *tp, msg_t msg);
#endif
-#if !defined(PORT_OPTIMIZED_DORESCHEDULEI)
- void chSchDoRescheduleI(void);
-#endif
#if !defined(PORT_OPTIMIZED_RESCHEDULES)
void chSchRescheduleS(void);
#endif
-#if !defined(PORT_OPTIMIZED_ISRESCHREQUIREDEXI)
- bool_t chSchIsRescRequiredExI(void);
+#if !defined(PORT_OPTIMIZED_ISPREEMPTIONREQUIRED)
+ bool_t chSchIsPreemptionRequired(void);
+#endif
+#if !defined(PORT_OPTIMIZED_DORESCHEDULE)
+ void chSchDoReschedule(void);
#endif
#ifdef __cplusplus
}
@@ -179,10 +179,37 @@ extern "C" { #if !defined(PORT_OPTIMIZED_DOYIELDS) || defined(__DOXYGEN__)
#define chSchDoYieldS() { \
if (chSchCanYieldS()) \
- chSchDoRescheduleI(); \
+ chSchDoReschedule(); \
}
#endif /* !defined(PORT_OPTIMIZED_DOYIELDS) */
+/**
+ * @brief Inlineable preemption code.
+ * @details This is the common preemption code, this function must be invoked
+ * exclusively from the port layer.
+ *
+ * @special
+ */
+#if (CH_TIME_QUANTUM > 0) || defined(__DOXYGEN__)
+#define chSchPreemption() { \
+ tprio_t p1 = firstprio(&rlist.r_queue); \
+ tprio_t p2 = currp->p_prio; \
+ if (rlist.r_preempt) { \
+ if (p1 > p2) \
+ chSchDoReschedule(); \
+ } \
+ else { \
+ if (p1 >= p2) \
+ chSchDoReschedule(); \
+ } \
+}
+#else /* CH_TIME_QUANTUM == 0 */
+#define chSchPreemption() { \
+ if (p1 >= p2) \
+ chSchDoReschedule(); \
+}
+#endif /* CH_TIME_QUANTUM == 0 */
+
#endif /* _CHSCHD_H_ */
/** @} */
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