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/**
* --Todo--
* Naming: this should become rt_domain while the old rt_domain should be
* changed to sd_domain (sporadic) or pd_domain (periodic).
* task_new: need to add and use this method
*/
#ifndef _LITMUS_DOMAIN_H_
#define _LITMUS_DOMAIN_H_
struct domain;
typedef void (*requeue_t)(struct domain*, struct task_struct*);
typedef void (*remove_t)(struct domain*, struct task_struct*);
typedef struct task_struct* (*peek_ready_t)(struct domain*);
typedef struct task_struct* (*take_ready_t)(struct domain*);
typedef int (*preempt_needed_t)(struct domain*, struct task_struct*);
typedef int (*task_prio_t)(struct task_struct*, struct task_struct*);
typedef struct domain {
raw_spinlock_t* lock; /* for coarse serialization */
struct list_head list; /* list membership */
void* data; /* implementation-specific data */
char* name; /* for debugging */
/* add a task to the domain */
requeue_t requeue;
/* prevent a task from being returned by the domain */
remove_t remove;
/* return next ready task */
peek_ready_t peek_ready;
/* remove and return next ready task */
take_ready_t take_ready;
/* return true if the domain has a task which should preempt the
* task given
*/
preempt_needed_t preempt_needed;
/* for tasks within this domain, returns true if the first has
* has a higher priority than the second
*/
task_prio_t higher_prio;
} domain_t;
void domain_init(domain_t *dom,
raw_spinlock_t *lock,
requeue_t requeue,
peek_ready_t peek_ready,
take_ready_t take_ready,
preempt_needed_t preempt_needed,
task_prio_t priority);
#endif
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