1*699cd480SApple OSS Distributions #ifndef _KERN_MPQUEUE_H 2*699cd480SApple OSS Distributions #define _KERN_MPQUEUE_H 3*699cd480SApple OSS Distributions #include <kern/locks.h> 4*699cd480SApple OSS Distributions 5*699cd480SApple OSS Distributions __BEGIN_DECLS 6*699cd480SApple OSS Distributions 7*699cd480SApple OSS Distributions #ifdef MACH_KERNEL_PRIVATE 8*699cd480SApple OSS Distributions 9*699cd480SApple OSS Distributions #include <kern/priority_queue.h> 10*699cd480SApple OSS Distributions 11*699cd480SApple OSS Distributions /*----------------------------------------------------------------*/ 12*699cd480SApple OSS Distributions /* 13*699cd480SApple OSS Distributions * Define macros for queues with locks. 14*699cd480SApple OSS Distributions */ 15*699cd480SApple OSS Distributions struct mpqueue_head { 16*699cd480SApple OSS Distributions struct queue_entry head; /* header for queue */ 17*699cd480SApple OSS Distributions struct priority_queue_deadline_min mpq_pqhead; 18*699cd480SApple OSS Distributions uint64_t earliest_soft_deadline; 19*699cd480SApple OSS Distributions uint64_t count; 20*699cd480SApple OSS Distributions lck_ticket_t lock_data; 21*699cd480SApple OSS Distributions }; 22*699cd480SApple OSS Distributions 23*699cd480SApple OSS Distributions typedef struct mpqueue_head mpqueue_head_t; 24*699cd480SApple OSS Distributions 25*699cd480SApple OSS Distributions #define mpqueue_init(q, lck_grp, lck_attr) \ 26*699cd480SApple OSS Distributions MACRO_BEGIN \ 27*699cd480SApple OSS Distributions queue_init(&(q)->head); \ 28*699cd480SApple OSS Distributions lck_ticket_init(&(q)->lock_data, lck_grp); \ 29*699cd480SApple OSS Distributions priority_queue_init(&(q)->mpq_pqhead); \ 30*699cd480SApple OSS Distributions MACRO_END 31*699cd480SApple OSS Distributions 32*699cd480SApple OSS Distributions #define mpenqueue_tail(q, elt) \ 33*699cd480SApple OSS Distributions MACRO_BEGIN \ 34*699cd480SApple OSS Distributions lck_ticket_lock(&(q)->lock_data, LCK_GRP_NULL); \ 35*699cd480SApple OSS Distributions enqueue_tail(&(q)->head, elt); \ 36*699cd480SApple OSS Distributions lck_ticket_unlock(&(q)->lock_data); \ 37*699cd480SApple OSS Distributions MACRO_END 38*699cd480SApple OSS Distributions 39*699cd480SApple OSS Distributions #define mpdequeue_head(q, elt) \ 40*699cd480SApple OSS Distributions MACRO_BEGIN \ 41*699cd480SApple OSS Distributions lck_ticket_lock(&(q)->lock_data, LCK_GRP_NULL); \ 42*699cd480SApple OSS Distributions if (queue_empty(&(q)->head)) \ 43*699cd480SApple OSS Distributions *(elt) = 0; \ 44*699cd480SApple OSS Distributions else \ 45*699cd480SApple OSS Distributions *(elt) = dequeue_head(&(q)->head); \ 46*699cd480SApple OSS Distributions lck_ticket_unlock(&(q)->lock_data); \ 47*699cd480SApple OSS Distributions MACRO_END 48*699cd480SApple OSS Distributions 49*699cd480SApple OSS Distributions #endif /* MACH_KERNEL_PRIVATE */ 50*699cd480SApple OSS Distributions 51*699cd480SApple OSS Distributions __END_DECLS 52*699cd480SApple OSS Distributions 53*699cd480SApple OSS Distributions 54*699cd480SApple OSS Distributions #endif /* _KERN_QUEUE_H */ 55