X-Git-Url: https://git.saurik.com/apple/libc.git/blobdiff_plain/224c70764cab4e0e39a26aaf3ad3016552f62f55..7b00c0c43f52e9d27168e67a26aac19065cdb40c:/pthreads/pthread_internals.h?ds=sidebyside diff --git a/pthreads/pthread_internals.h b/pthreads/pthread_internals.h index cce2e48..a74a94c 100644 --- a/pthreads/pthread_internals.h +++ b/pthreads/pthread_internals.h @@ -65,6 +65,7 @@ typedef struct _pthread_attr_t pthread_attr_t; #include #include #include +#include #ifndef __POSIX_LIB__ @@ -77,6 +78,10 @@ typedef struct _pthread_attr_t pthread_attr_t; #include "pthread_spinlock.h" /* spinlock definitions. */ TAILQ_HEAD(__pthread_list, _pthread); + +extern int __pthread_lock_debug; +extern int __pthread_lock_old; + extern struct __pthread_list __pthread_head; /* head of list of open files */ extern pthread_lock_t _pthread_list_lock; extern size_t pthreadsize; @@ -90,13 +95,14 @@ extern size_t pthreadsize; /* * Threads */ +#define MAXTHREADNAMESIZE 64 #define _PTHREAD_T typedef struct _pthread { long sig; /* Unique signature for this structure */ struct __darwin_pthread_handler_rec *__cleanup_stack; pthread_lock_t lock; /* Used for internal mutex on structure */ - u_int32_t detached:8, + uint32_t detached:8, inherit:8, policy:8, freeStackOnExit:1, @@ -104,13 +110,17 @@ typedef struct _pthread kernalloc:1, schedset:1, wqthread:1, - pad:3; + wqkillset:1, + pad:2; size_t guardsize; /* size in bytes to guard stack overflow */ #if !defined(__LP64__) int pad0; /* for backwards compatibility */ #endif struct sched_param param; - struct _pthread_mutex *mutexes; + uint32_t cancel_error; +#if defined(__LP64__) + uint32_t cancel_pad; /* pad value for alignment */ +#endif struct _pthread *joiner; #if !defined(__LP64__) int pad1; /* for backwards compatibility */ @@ -131,7 +141,7 @@ typedef struct _pthread #endif void *cthread_self; /* cthread_self() if somebody calls cthread_set_self() */ /* protected by list lock */ - u_int32_t childrun:1, + uint32_t childrun:1, parentcheck:1, childexit:1, pad3:29; @@ -142,18 +152,13 @@ typedef struct _pthread void * freeaddr; size_t freesize; mach_port_t joiner_notify; - char pthread_name[64]; /* including nulll the name */ + char pthread_name[MAXTHREADNAMESIZE]; /* including nulll the name */ int max_tsd_key; void * cur_workq; void * cur_workitem; + uint64_t thread_id; } *pthread_t; -/* - * This will cause a compile-time failure if someone moved the tsd field - * and we need to change _PTHREAD_TSD_OFFSET in pthread_machdep.h - */ -typedef char _need_to_change_PTHREAD_TSD_OFFSET[(_PTHREAD_TSD_OFFSET == offsetof(struct _pthread, tsd[0])) ? 0 : -1] ; - /* * Thread attributes */ @@ -161,7 +166,7 @@ struct _pthread_attr_t { long sig; /* Unique signature for this structure */ pthread_lock_t lock; - u_int32_t detached:8, + uint32_t detached:8, inherit:8, policy:8, freeStackOnExit:1, @@ -179,42 +184,97 @@ struct _pthread_attr_t /* * Mutex attributes */ +#define _PTHREAD_MUTEX_POLICY_NONE 0 +#define _PTHREAD_MUTEX_POLICY_FAIRSHARE 1 +#define _PTHREAD_MUTEX_POLICY_FIRSTFIT 2 +#define _PTHREAD_MUTEX_POLICY_REALTIME 3 +#define _PTHREAD_MUTEX_POLICY_ADAPTIVE 4 +#define _PTHREAD_MUTEX_POLICY_PRIPROTECT 5 +#define _PTHREAD_MUTEX_POLICY_PRIINHERIT 6 + #define _PTHREAD_MUTEXATTR_T typedef struct { long sig; /* Unique signature for this structure */ int prioceiling; - u_int32_t protocol:2, /* protocol attribute */ + uint32_t protocol:2, /* protocol attribute */ type:2, /* mutex type */ pshared:2, - rfu:26; + policy:3, + rfu:23; } pthread_mutexattr_t; /* * Mutex variables */ +struct _pthread_mutex_options { + uint32_t protocol:2, /* protocol */ + type:2, /* mutex type */ + pshared:2, /* mutex type */ + policy:3, + hold:2, + misalign:1, /* 8 byte aligned? */ + notify:1, /* CV notify field for kernel */ + mutex:1, /* used in clrprepo that it is a mutex */ + rfu:2, + lock_count:16; +}; + + +#define _PTHREAD_MTX_OPT_PSHARED 0x010 +#define _PTHREAD_MTX_OPT_HOLD 0x200 /* current owner of the mutex */ +#define _PTHREAD_MTX_OPT_NOMTX 0x400 /* no mutex refs held */ + +#define _PTHREAD_MTX_OPT_NOTIFY 0x1000 /* notify to drop mutex handling in cvwait */ +#define _PTHREAD_MTX_OPT_MUTEX 0x2000 /* this is a mutex type */ + + #define _PTHREAD_MUTEX_T typedef struct _pthread_mutex { long sig; /* Unique signature for this structure */ pthread_lock_t lock; /* Used for internal mutex on structure */ - u_int32_t waiters; /* Count of threads waiting for this mutex */ -#define _pthread_mutex_kernid waiters + union { + uint32_t value; + struct _pthread_mutex_options options; + } mtxopts; + int16_t prioceiling; + int16_t priority; /* Priority to restore when mutex unlocked */ + uint32_t waiters; /* Count of threads waiting for this mutex */ pthread_t owner; /* Which thread has this mutex locked */ - semaphore_t sem; /* Semaphore used for waiting */ - u_int32_t protocol:2, /* protocol */ - type:2, /* mutex type */ - pshared:2, /* mutex type */ - rfu:10, - lock_count:16; struct _pthread_mutex *next, *prev; /* List of other mutexes he owns */ struct _pthread_cond *busy; /* List of condition variables using this mutex */ - int16_t prioceiling; - int16_t priority; /* Priority to restore when mutex unlocked */ + semaphore_t sem; /* Semaphore used for waiting */ semaphore_t order; } pthread_mutex_t; +typedef struct _npthread_mutex +{ +/* keep same as pthread_mutex_t from here to .. */ + long sig; /* Unique signature for this structure */ + pthread_lock_t lock; /* Used for static init sequencing */ + union { + uint32_t value; + struct _pthread_mutex_options options; + } mtxopts; + int16_t prioceiling; + int16_t priority; /* Priority to restore when mutex unlocked */ + uint32_t m_seq[3]; +#if defined(__LP64__) + uint64_t m_tid; /* Which thread has this mutex locked */ + uint32_t * m_lseqaddr; + uint32_t * m_useqaddr; + uint32_t reserved[2]; +#else + uint32_t * m_lseqaddr; + uint64_t m_tid; /* Which thread has this mutex locked */ + uint32_t * m_useqaddr; +#endif +} npthread_mutex_t; + + + /* * Condition variable attributes @@ -223,7 +283,7 @@ typedef struct _pthread_mutex typedef struct { long sig; /* Unique signature for this structure */ - u_int32_t pshared:2, /* pshared */ + uint32_t pshared:2, /* pshared */ unsupported:30; } pthread_condattr_t; @@ -235,15 +295,29 @@ typedef struct _pthread_cond { long sig; /* Unique signature for this structure */ pthread_lock_t lock; /* Used for internal mutex on structure */ - semaphore_t sem; /* Kernel semaphore */ -#define _pthread_cond_kernid sem - struct _pthread_cond *next, *prev; /* List of condition variables using mutex */ - struct _pthread_mutex *busy; /* mutex associated with variable */ - u_int32_t waiters:15, /* Number of threads waiting */ + uint32_t waiters:15, /* Number of threads waiting */ sigspending:15, /* Number of outstanding signals */ pshared:2; + struct _pthread_cond *next, *prev; /* List of condition variables using mutex */ + struct _pthread_mutex *busy; /* mutex associated with variable */ + semaphore_t sem; /* Kernel semaphore */ } pthread_cond_t; + +typedef struct _npthread_cond +{ + long sig; /* Unique signature for this structure */ + pthread_lock_t lock; /* Used for internal mutex on structure */ + uint32_t rfu:29, /* not in use*/ + misalign: 1, /* structure is not aligned to 8 byte boundary */ + pshared:2; + struct _npthread_mutex *busy; /* mutex associated with variable */ + uint32_t c_seq[3]; +#if defined(__LP64__) + uint32_t reserved[3]; +#endif /* __LP64__ */ +} npthread_cond_t; + /* * Initialization control (once) variables */ @@ -266,32 +340,168 @@ typedef struct { long sig; pthread_mutex_t lock; /* monitor lock */ int state; -#define _pthread_rwlock_kernid state pthread_cond_t read_signal; pthread_cond_t write_signal; int blocked_writers; - int pshared; - pthread_t owner; - int rfu[2]; + int reserved; + pthread_t owner; + int rfu[1]; + int pshared; } pthread_rwlock_t; +#define PTHRW_RFU_64BIT 124 /* 31 * sizeof(uint32_t) */ +#define PTHRW_RFU_32BIT 72 /* 18 * sizeof(uint32_t) */ + +#define _PTHREAD_RWLOCK_T +typedef struct { + long sig; + pthread_lock_t lock; +#if defined(__LP64__) + int reserv; + volatile uint32_t rw_seq[4]; + pthread_t rw_owner; +#else /* __LP64__ */ + volatile uint32_t rw_seq[4]; + pthread_t rw_owner; + int reserv; +#endif /* __LP64__ */ + volatile uint32_t * rw_lcntaddr; + volatile uint32_t * rw_seqaddr; + volatile uint32_t * rw_ucntaddr; + uint32_t rw_flags; + int misalign; +#if defined(__LP64__) + char rfu[PTHRW_RFU_64BIT]; +#else /* __LP64__ */ + char rfu[PTHRW_RFU_32BIT]; +#endif /* __LP64__ */ + int pshared; +} npthread_rwlock_t; + +/* flags for rw_flags */ +#define PTHRW_KERN_PROCESS_SHARED 0x10 +#define PTHRW_KERN_PROCESS_PRIVATE 0x20 +#define PTHRW_KERN_PROCESS_FLAGS_MASK 0x30 +#define _PTHREAD_RWLOCK_UPGRADE_TRY 0x10000 + +/* New model bits on Lword */ +#define PTH_RWL_KBIT 0x01 /* users cannot acquire in user mode */ +#define PTH_RWL_EBIT 0x02 /* exclusive lock in progress */ +#define PTH_RWL_WBIT 0x04 /* write waiters pending in kernel */ +#define PTH_RWL_PBIT 0x04 /* prepost (cv) pending in kernel */ +#define PTH_RWL_YBIT 0x08 /* yielding write waiters pending in kernel */ +#define PTH_RWL_RETRYBIT 0x08 /* mutex retry wait */ +#define PTH_RWL_LBIT 0x10 /* long read in progress */ +#define PTH_RWL_MTXNONE 0x10 /* indicates the cvwait does not have mutex held */ +#define PTH_RWL_UBIT 0x20 /* upgrade request pending */ +#define PTH_RWL_MTX_WAIT 0x20 /* in cvar in mutex wait */ +#define PTH_RWL_RBIT 0x40 /* reader pending in kernel(not used) */ +#define PTH_RWL_MBIT 0x40 /* overlapping grants from kernel */ +#define PTH_RWL_TRYLKBIT 0x40 /* sets try lock attempt */ +#define PTH_RWL_IBIT 0x80 /* lock reset, held untill first succeesful unlock */ + +/* UBIT values for mutex, cvar */ +#define PTH_RWU_SBIT 0x01 +#define PTH_RWU_BBIT 0x02 + +#define PTHRW_RWL_INIT PTH_RWL_IBIT /* reset on the lock bits (U)*/ +#define PTHRW_RWLOCK_INIT (PTH_RWL_IBIT | PTH_RWL_RBIT) /* reset on the lock bits (U)*/ +#define PTH_RWLOCK_RESET_RBIT 0xffffffbf + +#define PTHRW_INC 0x100 +#define PTHRW_BIT_MASK 0x000000ff + +#define PTHRW_UN_BIT_MASK 0x000000bf /* remove overlap bit */ + + +/* New model bits on Sword */ +#define PTH_RWS_SBIT 0x01 /* kernel transition seq not set yet*/ +#define PTH_RWS_IBIT 0x02 /* Sequence is not set on return from kernel */ + +#define PTH_RWS_CV_CBIT PTH_RWS_SBIT /* kernel has cleared all info w.r.s.t CV */ +#define PTH_RWS_CV_PBIT PTH_RWS_IBIT /* kernel has prepost/fake structs only,no waiters */ +#define PTH_RWS_CV_BITSALL (PTH_RWS_CV_CBIT | PTH_RWS_CV_PBIT) +#define PTH_RWS_CV_MBIT PTH_RWL_MBIT /* to indicate prepost return from kernel */ +#define PTH_RWS_CV_RESET_PBIT 0xfffffffd + +#define PTH_RWS_WSVBIT 0x04 /* save W bit */ +#define PTH_RWS_USVBIT 0x08 /* save U bit */ +#define PTH_RWS_YSVBIT 0x10 /* save Y bit */ +#define PTHRW_RWS_INIT PTH_RWS_SBIT /* reset on the lock bits (U)*/ +#define PTHRW_RWS_SAVEMASK (PTH_RWS_WSVBIT|PTH_RWS_USVBIT|PTH_RWS_YSVBIT) /*save bits mask*/ +#define PTHRW_SW_Reset_BIT_MASK 0x000000fe /* remove S bit and get rest of the bits */ + +#define PTHRW_COUNT_SHIFT 8 +#define PTHRW_COUNT_MASK 0xffffff00 +#define PTHRW_MAX_READERS 0xffffff00 + + +#define PTHREAD_MTX_TID_SWITCHING (uint64_t)-1 + +/* new L word defns */ +#define can_rwl_readinuser(x) ((((x) & (PTH_RWL_UBIT | PTH_RWL_WBIT | PTH_RWL_KBIT)) == 0)||(((x) & PTH_RWL_LBIT) != 0)) +#define can_rwl_longreadinuser(x) (((x) & (PTH_RWL_UBIT | PTH_RWL_WBIT | PTH_RWL_KBIT | PTH_RWL_YBIT)) == 0) +#define is_rwl_ebit_set(x) (((x) & PTH_RWL_EBIT) != 0) +#define is_rwl_eubit_set(x) (((x) & (PTH_RWL_EBIT | PTH_RWL_UBIT)) != 0) +#define is_rwl_wbit_set(x) (((x) & PTH_RWL_WBIT) != 0) +#define is_rwl_lbit_set(x) (((x) & PTH_RWL_LBIT) != 0) +#define is_rwl_ebit_clear(x) (((x) & PTH_RWL_EBIT) == 0) +#define is_rwl_lbit_clear(x) (((x) & PTH_RWL_LBIT) == 0) +#define is_rwl_readoverlap(x) (((x) & PTH_RWL_MBIT) != 0) + +/* S word checks */ +#define is_rws_setseq(x) (((x) & PTH_RWS_SBIT)) +#define is_rws_setunlockinit(x) (((x) & PTH_RWS_IBIT)) + +/* is x lower than Y */ +static inline int is_seqlower(uint32_t x, uint32_t y) { + if (x < y) { + if ((y-x) < (PTHRW_MAX_READERS/2)) + return(1); + } else { + if ((x-y) > (PTHRW_MAX_READERS/2)) + return(1); + } + return(0); +} + +/* is x lower than or eq Y */ +static inline int is_seqlower_eq(uint32_t x, uint32_t y) { + if (x==y) + return(1); + else + return(is_seqlower(x,y)); +} + +/* is x greater than Y */ +static inline int is_seqhigher(uint32_t x, uint32_t y) { + if (x > y) { + if ((x-y) < (PTHRW_MAX_READERS/2)) + return(1); + } else { + if ((y-x) > (PTHRW_MAX_READERS/2)) + return(1); + } + return(0); +} + +static inline int diff_genseq(uint32_t x, uint32_t y) { + if (x == y) { + return(0); + } else if (x > y) { + return(x-y); + } else { + return((PTHRW_MAX_READERS - y) + x + PTHRW_INC); + } +} + /* keep the size to 64bytes for both 64 and 32 */ #define _PTHREAD_WORKQUEUE_ATTR_T typedef struct { - u_int32_t sig; -#if defined(__ppc64__) || defined(__x86_64__) - u_int32_t resv1; -#endif - size_t stacksize; - int istimeshare; - int importance; - int affinity; - int queueprio; -#if defined(__ppc64__) || defined(__x86_64__) - unsigned int resv2[8]; -#else - unsigned int resv2[10]; -#endif + uint32_t sig; + int queueprio; + int overcommit; + unsigned int resv2[13]; } pthread_workqueue_attr_t; #define _PTHREAD_WORKITEM_T @@ -301,6 +511,7 @@ typedef struct _pthread_workitem { void * func_arg; struct _pthread_workqueue * workq; unsigned int flags; + unsigned int fromcache; /* padding for 64bit */ } * pthread_workitem_t; #define PTH_WQITEM_INKERNEL_QUEUE 1 @@ -313,13 +524,16 @@ typedef struct _pthread_workitem { #define PTH_WQITEM_APPLIED 0x80 #define PTH_WQITEM_KERN_COUNT 0x100 -#define WORKITEM_POOL_SIZE 1000 +/* try to fit these within multiple of pages (8 pages for now) */ +#define WORKITEM_POOL_SIZE 680 +/* ensure some multiple of the chunk is the pool size */ +#define WORKITEM_CHUNK_SIZE 40 + +#define WORKITEM_STARTPOOL_SIZE WORKITEM_CHUNK_SIZE + TAILQ_HEAD(__pthread_workitem_pool, _pthread_workitem); extern struct __pthread_workitem_pool __pthread_workitem_pool_head; /* head list of workitem pool */ -#define WQ_NUM_PRIO_QS 5 /* -2 to +2 */ -#define WORK_QUEUE_NORMALIZER 2 /* so all internal usages are from 0 to 4 */ - #define _PTHREAD_WORKQUEUE_HEAD_T typedef struct _pthread_workqueue_head { TAILQ_HEAD(, _pthread_workqueue) wqhead; @@ -327,6 +541,7 @@ typedef struct _pthread_workqueue_head { } * pthread_workqueue_head_t; +/* sized to be 128 bytes both in 32 and 64bit archs */ #define _PTHREAD_WORKQUEUE_T typedef struct _pthread_workqueue { unsigned int sig; /* Unique signature for this structure */ @@ -345,10 +560,8 @@ typedef struct _pthread_workqueue { void (*term_callback)(struct _pthread_workqueue *,void *); void * term_callarg; pthread_workqueue_head_t headp; - int suspend_count; -#if defined(__ppc64__) || defined(__x86_64__) - unsigned int rev2[2]; -#else + int overcommit; +#if !defined(__LP64__) unsigned int rev2[12]; #endif } * pthread_workqueue_t; @@ -361,13 +574,13 @@ typedef struct _pthread_workqueue { #define PTHREAD_WORKQ_REQUEUED 0x20 #define PTHREAD_WORKQ_SUSPEND 0x40 -#define WORKQUEUE_POOL_SIZE 100 +#define WORKQUEUE_POOL_SIZE 16 TAILQ_HEAD(__pthread_workqueue_pool, _pthread_workqueue); extern struct __pthread_workqueue_pool __pthread_workqueue_pool_head; /* head list of workqueue pool */ -#include "pthread.h" +#include "pthread_spis.h" -#if defined(__i386__) || defined(__ppc64__) || defined(__x86_64__) +#if defined(__i386__) || defined(__ppc64__) || defined(__x86_64__) || (defined(__arm__) && (defined(_ARM_ARCH_7) || !defined(_ARM_ARCH_6) || !defined(__thumb__))) /* * Inside libSystem, we can use r13 or %gs directly to get access to the * thread-specific data area. The current thread is in the first slot. @@ -375,12 +588,17 @@ extern struct __pthread_workqueue_pool __pthread_workqueue_pool_head; /* inline static pthread_t __attribute__((__pure__)) _pthread_self_direct(void) { - pthread_t ret; + pthread_t ret; + #if defined(__i386__) || defined(__x86_64__) - asm("mov %%gs:%P1, %0" : "=r" (ret) : "i" (offsetof(struct _pthread, tsd[0]))); + ret = _pthread_getspecific_direct(0); #elif defined(__ppc64__) register const pthread_t __pthread_self asm ("r13"); ret = __pthread_self; +#elif defined(__arm__) && defined(_ARM_ARCH_6) + ret = _pthread_getspecific_direct(0); +#elif defined(__arm__) && !defined(_ARM_ARCH_6) + ret = _pthread_getspecific_direct(0); #endif return ret; } @@ -398,6 +616,11 @@ _pthread_self_direct(void) #define _PTHREAD_MUTEX_ATTR_SIG 0x4D545841 /* 'MTXA' */ #define _PTHREAD_MUTEX_SIG 0x4D555458 /* 'MUTX' */ #define _PTHREAD_MUTEX_SIG_init 0x32AAABA7 /* [almost] ~'MUTX' */ +#define _PTHREAD_ERRORCHECK_MUTEX_SIG_init 0x32AAABA1 +#define _PTHREAD_RECURSIVE_MUTEX_SIG_init 0x32AAABA2 +#define _PTHREAD_FIRSTFIT_MUTEX_SIG_init 0x32AAABA3 +#define _PTHREAD_MUTEX_SIG_init_MASK 0xfffffff0 +#define _PTHREAD_MUTEX_SIG_CMP 0x32AAABA0 #define _PTHREAD_COND_ATTR_SIG 0x434E4441 /* 'CNDA' */ #define _PTHREAD_COND_SIG 0x434F4E44 /* 'COND' */ #define _PTHREAD_COND_SIG_init 0x3CB0B1BB /* [almost] ~'COND' */ @@ -446,9 +669,32 @@ extern void _pthread_setup(pthread_t th, void (*f)(pthread_t), void *sp, int sus extern void _pthread_tsd_cleanup(pthread_t self); +__private_extern__ void __mtx_holdlock(npthread_mutex_t *mutex, uint32_t diff, uint32_t * flagp, uint32_t ** pmtxp, uint32_t * mgenp, uint32_t * ugenp, uint64_t *tidp); +__private_extern__ int __mtx_droplock(npthread_mutex_t *mutex, uint32_t diff, uint32_t * flagp, uint32_t ** pmtxp, uint32_t * mgenp, uint32_t * ugenp); +__private_extern__ int __mtx_updatebits(npthread_mutex_t *mutex, uint32_t updateval, int firstfiti, int fromcond, uint64_t selfid); + +/* syscall interfaces */ +extern uint32_t __psynch_mutexwait(pthread_mutex_t * mutex, uint32_t mgen, uint32_t ugen, uint64_t tid, uint32_t flags); +extern uint32_t __psynch_mutexdrop(pthread_mutex_t * mutex, uint32_t mgen, uint32_t ugen, uint64_t tid, uint32_t flags); + +extern uint32_t __psynch_cvbroad(pthread_cond_t * cv, uint64_t cvlsgen, uint64_t cvudgen, uint32_t flags, pthread_mutex_t * mutex, uint64_t mugen, uint64_t tid); +extern uint32_t __psynch_cvsignal(pthread_cond_t * cv, uint64_t cvlsgen, uint32_t cvugen, int thread_port, pthread_mutex_t * mutex, uint64_t mugen, uint64_t tid, uint32_t flags); +extern uint32_t __psynch_cvwait(pthread_cond_t * cv, uint64_t cvlsgen, uint32_t cvugen, pthread_mutex_t * mutex, uint64_t mugen, uint32_t flags, int64_t sec, uint32_t nsec); +extern uint32_t __psynch_cvclrprepost(void * cv, uint32_t cvgen, uint32_t cvugen, uint32_t cvsgen, uint32_t prepocnt, uint32_t preposeq, uint32_t flags); +extern uint32_t __psynch_rw_longrdlock(pthread_rwlock_t * rwlock, uint32_t lgenval, uint32_t ugenval, uint32_t rw_wc, int flags); +extern uint32_t __psynch_rw_yieldwrlock(pthread_rwlock_t * rwlock, uint32_t lgenval, uint32_t ugenval, uint32_t rw_wc, int flags); +extern int __psynch_rw_downgrade(pthread_rwlock_t * rwlock, uint32_t lgenval, uint32_t ugenval, uint32_t rw_wc, int flags); +extern uint32_t __psynch_rw_upgrade(pthread_rwlock_t * rwlock, uint32_t lgenval, uint32_t ugenval, uint32_t rw_wc, int flags); +extern uint32_t __psynch_rw_rdlock(pthread_rwlock_t * rwlock, uint32_t lgenval, uint32_t ugenval, uint32_t rw_wc, int flags); +extern uint32_t __psynch_rw_wrlock(pthread_rwlock_t * rwlock, uint32_t lgenval, uint32_t ugenval, uint32_t rw_wc, int flags); +extern uint32_t __psynch_rw_unlock(pthread_rwlock_t * rwlock, uint32_t lgenval, uint32_t ugenval, uint32_t rw_wc, int flags); +extern uint32_t __psynch_rw_unlock2(pthread_rwlock_t * rwlock, uint32_t lgenval, uint32_t ugenval, uint32_t rw_wc, int flags); + __private_extern__ semaphore_t new_sem_from_pool(void); __private_extern__ void restore_sem_to_pool(semaphore_t); __private_extern__ void _pthread_atfork_queue_init(void); int _pthread_lookup_thread(pthread_t thread, mach_port_t * port, int only_joinable); int _pthread_join_cleanup(pthread_t thread, void ** value_ptr, int conforming); +__private_extern__ int proc_setthreadname(void * buffer, int buffersize); + #endif /* _POSIX_PTHREAD_INTERNALS_H */