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Add basic configuration options for SCHED_SPORADIC

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Gregory Nutt
2015-07-23 10:33:30 -06:00
parent 146bdc3c93
commit 2b3aae0ddc
2 changed files with 18 additions and 3 deletions
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include/nuttx/sched.h
+10 -2
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@@ -481,18 +481,26 @@ struct tcb_s
uint8_t npend_reprio; /* Number of nested reprioritizations */ uint8_t npend_reprio; /* Number of nested reprioritizations */
uint8_t pend_reprios[CONFIG_SEM_NNESTPRIO]; uint8_t pend_reprios[CONFIG_SEM_NNESTPRIO];
#endif #endif
#if defined(CONFIG_PRIORITY_INHERITANCE) #if defined(CONFIG_PRIORITY_INHERITANCE) || defined(CONFIG_SCHED_SPORADIC)
uint8_t base_priority; /* "Normal" priority of the thread */ uint8_t base_priority; /* "Normal" priority of the thread */
#endif #endif
#ifdef CONFIG_SCHED_SPORADIC
int32_t low_priority; /* Sporadic low priority */
#endif
uint8_t task_state; /* Current state of the thread */ uint8_t task_state; /* Current state of the thread */
uint16_t flags; /* Misc. general status flags */ uint16_t flags; /* Misc. general status flags */
int16_t lockcount; /* 0=preemptable (not-locked) */ int16_t lockcount; /* 0=preemptable (not-locked) */
#if CONFIG_RR_INTERVAL > 0 #if CONFIG_RR_INTERVAL > 0 || defined(CONFIG_SCHED_SPORADIC)
int32_t timeslice; /* RR timeslice OR Sporadic */ int32_t timeslice; /* RR timeslice OR Sporadic */
/* replenishment interval remaining */ /* replenishment interval remaining */
#endif #endif
#ifdef CONFIG_SCHED_SPORADIC
uint32_t spstart; /* Start time of execution budget */
uint32_t replen; /* Sporadic replenishment interval */
uint32_t budget; /* Sporadic execution budget */
#endif
FAR struct wdog_s *waitdog; /* All timed waits used this wdog */ FAR struct wdog_s *waitdog; /* All timed waits used this wdog */
sched/Kconfig
+8 -1
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@@ -304,7 +304,14 @@ config RR_INTERVAL
default 0 default 0
---help--- ---help---
The round robin timeslice will be set this number of milliseconds; The round robin timeslice will be set this number of milliseconds;
Round robin scheduling can be disabled by setting this value to zero. Round roben scheduling (SCHED_RR) is enabled by setting this
interval to a positive, non-zero value.
config SCHED_SPORADIC
bool "Support sporadic scheduling"
default n
---help---
Build in additional logic to support sporadic scheduling (SCHED_SPORADIC).
config TASK_NAME_SIZE config TASK_NAME_SIZE
int "Maximum task name size" int "Maximum task name size"