#ifndef _SYS_MCACHE_H
#define _SYS_MCACHE_H
#ifdef KERNEL_PRIVATE
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <sys/queue.h>
#include <mach/boolean.h>
#include <kern/locks.h>
#ifdef ASSERT
#undef ASSERT
#endif
#ifdef VERIFY
#undef VERIFY
#endif
#define VERIFY(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
#if DEBUG
#define ASSERT(EX) VERIFY(EX)
#else
#define ASSERT(EX) ((void)0)
#endif
#if defined(__ppc__)
#define CPU_CACHE_SIZE 128
#else
#define CPU_CACHE_SIZE 64
#endif
#ifndef IS_P2ALIGNED
#define IS_P2ALIGNED(v, a) \
((((uintptr_t)(v)) & ((uintptr_t)(a) - 1)) == 0)
#endif
#ifndef P2ROUNDUP
#define P2ROUNDUP(x, align) \
(-(-((uintptr_t)(x)) & -(align)))
#endif
#ifndef P2ROUNDDOWN
#define P2ROUNDDOWN(x, align) \
(((uintptr_t)(x)) & ~((uintptr_t)(align) - 1))
#endif
#define MCACHE_FREE_PATTERN 0xdeadbeefdeadbeefULL
#define MCACHE_UNINITIALIZED_PATTERN 0xbaddcafebaddcafeULL
#define MCR_SLEEP 0x0000
#define MCR_NOSLEEP 0x0001
#define MCR_FAILOK 0x0100
#define MCR_TRYHARD 0x0200
#define MCR_USR1 0x1000
#define MCR_NONBLOCKING (MCR_NOSLEEP | MCR_FAILOK | MCR_TRYHARD)
typedef struct mcache_obj {
struct mcache_obj *obj_next;
} mcache_obj_t;
typedef struct mcache_bkt {
void *bkt_next;
void *bkt_obj[1];
} mcache_bkt_t;
typedef struct mcache_bktlist {
mcache_bkt_t *bl_list;
u_int32_t bl_total;
u_int32_t bl_min;
u_int32_t bl_reaplimit;
u_int64_t bl_alloc;
} mcache_bktlist_t;
typedef struct mcache_bkttype {
int bt_bktsize;
size_t bt_minbuf;
size_t bt_maxbuf;
struct mcache *bt_cache;
} mcache_bkttype_t;
typedef struct mcache_cpu {
decl_lck_mtx_data(, cc_lock);
mcache_bkt_t *cc_filled;
mcache_bkt_t *cc_pfilled;
u_int64_t cc_alloc;
u_int64_t cc_free;
int cc_objs;
int cc_pobjs;
int cc_bktsize;
} __attribute__((aligned(CPU_CACHE_SIZE), packed)) mcache_cpu_t;
typedef unsigned int (*mcache_allocfn_t)(void *, mcache_obj_t ***,
unsigned int, int);
typedef void (*mcache_freefn_t)(void *, mcache_obj_t *, boolean_t);
typedef void (*mcache_auditfn_t)(void *, mcache_obj_t *, boolean_t);
typedef void (*mcache_notifyfn_t)(void *, u_int32_t);
typedef struct mcache {
LIST_ENTRY(mcache) mc_list;
char mc_name[32];
struct zone *mc_slab_zone;
mcache_allocfn_t mc_slab_alloc;
mcache_freefn_t mc_slab_free;
mcache_auditfn_t mc_slab_audit;
mcache_notifyfn_t mc_slab_notify;
void *mc_private;
size_t mc_bufsize;
size_t mc_align;
u_int32_t mc_flags;
u_int32_t mc_purge_cnt;
u_int32_t mc_enable_cnt;
u_int32_t mc_waiter_cnt;
u_int32_t mc_wretry_cnt;
u_int32_t mc_nwretry_cnt;
u_int32_t mc_nwfail_cnt;
decl_lck_mtx_data(, mc_sync_lock);
lck_attr_t *mc_sync_lock_attr;
lck_grp_t *mc_sync_lock_grp;
lck_grp_attr_t *mc_sync_lock_grp_attr;
lck_attr_t *mc_cpu_lock_attr;
lck_grp_t *mc_cpu_lock_grp;
lck_grp_attr_t *mc_cpu_lock_grp_attr;
decl_lck_mtx_data(, mc_bkt_lock);
lck_attr_t *mc_bkt_lock_attr;
lck_grp_t *mc_bkt_lock_grp;
lck_grp_attr_t *mc_bkt_lock_grp_attr;
mcache_bkttype_t *cache_bkttype;
mcache_bktlist_t mc_full;
mcache_bktlist_t mc_empty;
size_t mc_chunksize;
u_int32_t mc_bkt_contention;
u_int32_t mc_bkt_contention_prev;
mcache_cpu_t mc_cpu[1];
} mcache_t;
#define MCACHE_ALIGN 8
#define MCF_VERIFY 0x00000001
#define MCF_AUDIT 0x00000002
#define MCF_NOCPUCACHE 0x00000010
#define MCF_DEBUG (MCF_VERIFY | MCF_AUDIT)
#define MCF_FLAGS_MASK (MCF_DEBUG | MCF_NOCPUCACHE)
#define MCN_RETRYALLOC 0x00000001
#define MCACHE_STACK_DEPTH 16
typedef struct mcache_audit {
struct mcache_audit *mca_next;
void *mca_addr;
mcache_t *mca_cache;
struct thread *mca_thread;
struct thread *mca_pthread;
size_t mca_contents_size;
void *mca_contents;
uint16_t mca_depth;
uint16_t mca_pdepth;
void *mca_stack[MCACHE_STACK_DEPTH];
void *mca_pstack[MCACHE_STACK_DEPTH];
void *mca_uptr;
uint32_t mca_uflags;
} mcache_audit_t;
__private_extern__ int assfail(const char *, const char *, int);
__private_extern__ void mcache_init(void);
__private_extern__ unsigned int mcache_getflags(void);
__private_extern__ mcache_t *mcache_create(const char *, size_t,
size_t, u_int32_t, int);
__private_extern__ void *mcache_alloc(mcache_t *, int);
__private_extern__ void mcache_free(mcache_t *, void *);
__private_extern__ mcache_t *mcache_create_ext(const char *, size_t,
mcache_allocfn_t, mcache_freefn_t, mcache_auditfn_t, mcache_notifyfn_t,
void *, u_int32_t, int);
__private_extern__ void mcache_destroy(mcache_t *);
__private_extern__ unsigned int mcache_alloc_ext(mcache_t *, mcache_obj_t **,
unsigned int, int);
__private_extern__ void mcache_free_ext(mcache_t *, mcache_obj_t *);
__private_extern__ void mcache_reap(void);
__private_extern__ boolean_t mcache_purge_cache(mcache_t *);
__private_extern__ void mcache_waiter_inc(mcache_t *);
__private_extern__ void mcache_waiter_dec(mcache_t *);
__private_extern__ boolean_t mcache_bkt_isempty(mcache_t *);
__private_extern__ void mcache_buffer_log(mcache_audit_t *, void *, mcache_t *);
__private_extern__ void mcache_set_pattern(u_int64_t, void *, size_t);
__private_extern__ void *mcache_verify_pattern(u_int64_t, void *, size_t);
__private_extern__ void *mcache_verify_set_pattern(u_int64_t, u_int64_t,
void *, size_t);
__private_extern__ void mcache_audit_free_verify(mcache_audit_t *,
void *, size_t, size_t);
__private_extern__ void mcache_audit_free_verify_set(mcache_audit_t *,
void *, size_t, size_t);
__private_extern__ char *mcache_dump_mca(mcache_audit_t *);
__private_extern__ void mcache_audit_panic(mcache_audit_t *, void *, size_t,
int64_t, int64_t);
__private_extern__ mcache_t *mcache_audit_cache;
#ifdef __cplusplus
}
#endif
#endif
#endif