X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..d9a64523371fa019c4575bb400cbbc3a50ac9903:/osfmk/kern/sync_lock.h diff --git a/osfmk/kern/sync_lock.h b/osfmk/kern/sync_lock.h index 589fdfcb8..fc83bb97d 100644 --- a/osfmk/kern/sync_lock.h +++ b/osfmk/kern/sync_lock.h @@ -43,78 +43,10 @@ #ifdef MACH_KERNEL_PRIVATE -#include #include #include #include -typedef struct ulock { - queue_chain_t thread_link; /* ulocks owned by thread MUST BE FIRST */ - queue_chain_t held_link; /* ulocks held in the lock set */ - queue_chain_t handoff_link; /* ulocks w/ active handoffs */ - struct lock_set *lock_set; /* the retaining lock set */ - thread_t holder; /* thread that holds the lock */ - - struct wait_queue wait_queue; /* queue of blocked threads */ - - decl_lck_mtx_data(,lock) /* ulock lock */ - - unsigned int /* flags */ - /* boolean_t */ blocked:1, /* did threads block waiting? */ - /* boolean_t */ unstable:1, /* unstable? (holder died) */ - /* boolean_t */ ho_wait:1, /* handoff thread waiting? */ - /* boolean_t */ accept_wait:1, /* accepting thread waiting? */ - :0; /* force to long boundary */ -} Ulock; - -typedef struct ulock *ulock_t; - -typedef struct lock_set { - queue_chain_t task_link; /* lock sets owned by a task MUST BE FIRST */ - task_t owner; /* task that owns the lock set */ - ipc_port_t port; /* lock set port */ - decl_lck_mtx_data(,lock) /* lock set lock */ - uint32_t ref_count; /* reference count */ - - boolean_t active; /* active status */ - int n_ulocks; /* number of ulocks in the lock set */ - - struct ulock ulock_list[1]; /* ulock group list place holder */ -} Lock_Set; - -#define ULOCK_NULL ((ulock_t) 0) - -#define ULOCK_FREE 0 -#define ULOCK_HELD 1 - -extern lck_grp_t lock_set_grp; -extern lck_attr_t lock_set_attr; - -/* - * Data structure internal lock macros - */ - -#define lock_set_lock_init(ls) lck_mtx_init(&(ls)->lock, &lock_set_grp, &lock_set_attr) -#define lock_set_lock(ls) lck_mtx_lock(&(ls)->lock) -#define lock_set_unlock(ls) lck_mtx_unlock(&(ls)->lock) - -#define ulock_lock_init(ul) lck_mtx_init(&(ul)->lock, &lock_set_grp, &lock_set_attr) -#define ulock_lock(ul) lck_mtx_lock(&(ul)->lock) -#define ulock_unlock(ul) lck_mtx_unlock(&(ul)->lock) - -extern void lock_set_init(void) __attribute__((section("__TEXT, initcode"))); - -extern kern_return_t ulock_release_internal( - ulock_t ulock, - thread_t thread); - -extern kern_return_t lock_make_unstable( - ulock_t ulock, - thread_t thread); - -extern void ulock_release_all( - thread_t thread); - extern void lock_set_reference (lock_set_t lock_set); extern void lock_set_dereference (lock_set_t lock_set);