1*4d495c6eSApple OSS Distributions #ifndef _KERN_MPQUEUE_H 2*4d495c6eSApple OSS Distributions #define _KERN_MPQUEUE_H 3*4d495c6eSApple OSS Distributions #include <kern/locks.h> 4*4d495c6eSApple OSS Distributions 5*4d495c6eSApple OSS Distributions __BEGIN_DECLS 6*4d495c6eSApple OSS Distributions 7*4d495c6eSApple OSS Distributions #ifdef MACH_KERNEL_PRIVATE 8*4d495c6eSApple OSS Distributions 9*4d495c6eSApple OSS Distributions #include <kern/priority_queue.h> 10*4d495c6eSApple OSS Distributions 11*4d495c6eSApple OSS Distributions /*----------------------------------------------------------------*/ 12*4d495c6eSApple OSS Distributions /* 13*4d495c6eSApple OSS Distributions * Define macros for queues with locks. 14*4d495c6eSApple OSS Distributions */ 15*4d495c6eSApple OSS Distributions struct mpqueue_head { 16*4d495c6eSApple OSS Distributions struct queue_entry head; /* header for queue */ 17*4d495c6eSApple OSS Distributions struct priority_queue_deadline_min mpq_pqhead; 18*4d495c6eSApple OSS Distributions uint64_t earliest_soft_deadline; 19*4d495c6eSApple OSS Distributions uint64_t count; 20*4d495c6eSApple OSS Distributions lck_ticket_t lock_data; 21*4d495c6eSApple OSS Distributions }; 22*4d495c6eSApple OSS Distributions 23*4d495c6eSApple OSS Distributions typedef struct mpqueue_head mpqueue_head_t; 24*4d495c6eSApple OSS Distributions 25*4d495c6eSApple OSS Distributions #define mpqueue_init(q, lck_grp, lck_attr) \ 26*4d495c6eSApple OSS Distributions MACRO_BEGIN \ 27*4d495c6eSApple OSS Distributions queue_init(&(q)->head); \ 28*4d495c6eSApple OSS Distributions lck_ticket_init(&(q)->lock_data, lck_grp); \ 29*4d495c6eSApple OSS Distributions priority_queue_init(&(q)->mpq_pqhead); \ 30*4d495c6eSApple OSS Distributions MACRO_END 31*4d495c6eSApple OSS Distributions 32*4d495c6eSApple OSS Distributions #define mpenqueue_tail(q, elt) \ 33*4d495c6eSApple OSS Distributions MACRO_BEGIN \ 34*4d495c6eSApple OSS Distributions lck_ticket_lock(&(q)->lock_data, LCK_GRP_NULL); \ 35*4d495c6eSApple OSS Distributions enqueue_tail(&(q)->head, elt); \ 36*4d495c6eSApple OSS Distributions lck_ticket_unlock(&(q)->lock_data); \ 37*4d495c6eSApple OSS Distributions MACRO_END 38*4d495c6eSApple OSS Distributions 39*4d495c6eSApple OSS Distributions #define mpdequeue_head(q, elt) \ 40*4d495c6eSApple OSS Distributions MACRO_BEGIN \ 41*4d495c6eSApple OSS Distributions lck_ticket_lock(&(q)->lock_data, LCK_GRP_NULL); \ 42*4d495c6eSApple OSS Distributions if (queue_empty(&(q)->head)) \ 43*4d495c6eSApple OSS Distributions *(elt) = 0; \ 44*4d495c6eSApple OSS Distributions else \ 45*4d495c6eSApple OSS Distributions *(elt) = dequeue_head(&(q)->head); \ 46*4d495c6eSApple OSS Distributions lck_ticket_unlock(&(q)->lock_data); \ 47*4d495c6eSApple OSS Distributions MACRO_END 48*4d495c6eSApple OSS Distributions 49*4d495c6eSApple OSS Distributions #endif /* MACH_KERNEL_PRIVATE */ 50*4d495c6eSApple OSS Distributions 51*4d495c6eSApple OSS Distributions __END_DECLS 52*4d495c6eSApple OSS Distributions 53*4d495c6eSApple OSS Distributions 54*4d495c6eSApple OSS Distributions #endif /* _KERN_QUEUE_H */ 55