Sched

Files
file	sched.h
	Scheduler interface header.
file	sched-idle.c
	Idle scheduling class implementation (i.e. Linux placeholder).
file	sched-rt.c
	Common real-time scheduling class implementation (FIFO + RR).
file	sched-sporadic.c
	POSIX SCHED_SPORADIC scheduling class.
file	sched-tp.c
	Temporal partitioning (typical of IMA systems).
Data Structures
struct	xnsched
	Scheduling information structure. More...
Typedefs
typedef struct xnsched	xnsched_t
	Scheduling information structure.
Functions
static void	xnsched_rotate (struct xnsched *sched, struct xnsched_class *sched_class, const union xnsched_policy_param *sched_param)
	Rotate a scheduler runqueue.

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Function Documentation

void xnsched_rotate	(	struct xnsched *	sched,
		struct xnsched_class *	sched_class,
		const union xnsched_policy_param *	param
	)			[inline, static]

Rotate a scheduler runqueue.

The specified scheduling class is requested to rotate its runqueue for the given scheduler. Rotation is performed according to the scheduling parameter specified by sched_param.

Note:

The nucleus supports round-robin scheduling for the members of the RT class.

Parameters:

	sched	The per-CPU scheduler hosting the target scheduling class.
	sched_class	The scheduling class which should rotate its runqueue.
	sched_param	The scheduling parameter providing rotation information to the specified scheduling class.

Environments:

This service should be called from:

• Kernel-based task
• Interrupt service routine
• User-space task (primary mode only)

Rescheduling: never.