/* * Copyright (c) 2000-2003, 2007 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991 * All Rights Reserved * * Permission to use, copy, modify, and distribute this software and * its documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appears in all copies and * that both the copyright notice and this permission notice appear in * supporting documentation. * * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE. * * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * */ /* * MkLinux */ /* * POSIX Threads - IEEE 1003.1c */ #ifndef _POSIX_PTHREAD_INTERNALS_H #define _POSIX_PTHREAD_INTERNALS_H // suppress pthread_attr_t typedef in sys/signal.h #define _PTHREAD_ATTR_T struct _pthread_attr_t; /* forward reference */ typedef struct _pthread_attr_t pthread_attr_t; #include #include #include #include #include #include #include #include #include #include #ifndef __POSIX_LIB__ #define __POSIX_LIB__ #endif #include "posix_sched.h" /* For POSIX scheduling policy & parameter */ #include /* For POSIX scheduling policy & parameter */ #include "pthread_machdep.h" /* Machine-dependent definitions. */ #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; /* * Compiled-in limits */ #if TARGET_OS_EMBEDDED #define _EXTERNAL_POSIX_THREAD_KEYS_MAX 256 #define _INTERNAL_POSIX_THREAD_KEYS_MAX 256 #define _INTERNAL_POSIX_THREAD_KEYS_END 512 #else #define _EXTERNAL_POSIX_THREAD_KEYS_MAX 512 #define _INTERNAL_POSIX_THREAD_KEYS_MAX 256 #define _INTERNAL_POSIX_THREAD_KEYS_END 768 #endif /* * 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 */ uint32_t detached:8, inherit:8, policy:8, freeStackOnExit:1, newstyle:1, kernalloc:1, schedset:1, wqthread:1, 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; 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 */ #endif void *exit_value; semaphore_t death; /* pthread_join() uses this to wait for death's call */ mach_port_t kernel_thread; /* kernel thread this thread is bound to */ void *(*fun)(void*);/* Thread start routine */ void *arg; /* Argment for thread start routine */ int cancel_state; /* Whether thread can be cancelled */ int err_no; /* thread-local errno */ void *tsd[_EXTERNAL_POSIX_THREAD_KEYS_MAX + _INTERNAL_POSIX_THREAD_KEYS_MAX]; /* Thread specific data */ void *stackaddr; /* Base of the stack (is aligned on vm_page_size boundary */ size_t stacksize; /* Size of the stack (is a multiple of vm_page_size and >= PTHREAD_STACK_MIN) */ mach_port_t reply_port; /* Cached MiG reply port */ #if defined(__LP64__) int pad2; /* for natural alignment */ #endif void *cthread_self; /* cthread_self() if somebody calls cthread_set_self() */ /* protected by list lock */ uint32_t childrun:1, parentcheck:1, childexit:1, pad3:29; #if defined(__LP64__) int pad4; /* for natural alignment */ #endif TAILQ_ENTRY(_pthread) plist; void * freeaddr; size_t freesize; mach_port_t joiner_notify; char pthread_name[MAXTHREADNAMESIZE]; /* including nulll the name */ int max_tsd_key; void * cur_workq; void * cur_workitem; uint64_t thread_id; } *pthread_t; /* * Thread attributes */ struct _pthread_attr_t { long sig; /* Unique signature for this structure */ pthread_lock_t lock; uint32_t detached:8, inherit:8, policy:8, freeStackOnExit:1, fastpath:1, schedset:1, reserved1:5; size_t guardsize; /* size in bytes to guard stack overflow */ int reserved2; /* Should we free the stack when we exit? */ struct sched_param param; void *stackaddr; /* Base of the stack (is aligned on vm_page_size boundary */ size_t stacksize; /* Size of the stack (is a multiple of vm_page_size and >= PTHREAD_STACK_MIN) */ boolean_t reserved3; }; /* * 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; uint32_t protocol:2, /* protocol attribute */ type:2, /* mutex type */ pshared:2, 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 */ 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 */ struct _pthread_mutex *next, *prev; /* List of other mutexes he owns */ struct _pthread_cond *busy; /* List of condition variables using this mutex */ 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 */ #define _PTHREAD_CONDATTR_T typedef struct { long sig; /* Unique signature for this structure */ uint32_t pshared:2, /* pshared */ unsupported:30; } pthread_condattr_t; /* * Condition variables */ #define _PTHREAD_COND_T typedef struct _pthread_cond { long sig; /* Unique signature for this structure */ pthread_lock_t lock; /* Used for internal mutex on structure */ 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 */ #define _PTHREAD_ONCE_T typedef struct { long sig; /* Unique signature for this structure */ pthread_lock_t lock; /* Used for internal mutex on structure */ } pthread_once_t; #define _PTHREAD_RWLOCKATTR_T typedef struct { long sig; /* Unique signature for this structure */ int pshared; int rfu[2]; /* reserved for future use */ } pthread_rwlockattr_t; #define _PTHREAD_RWLOCK_T typedef struct { long sig; pthread_mutex_t lock; /* monitor lock */ int state; pthread_cond_t read_signal; pthread_cond_t write_signal; int blocked_writers; 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 { uint32_t sig; int queueprio; int overcommit; unsigned int resv2[13]; } pthread_workqueue_attr_t; #define _PTHREAD_WORKITEM_T typedef struct _pthread_workitem { TAILQ_ENTRY(_pthread_workitem) item_entry; /* pthread_workitem list in prio */ void (*func)(void *); 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 #define PTH_WQITEM_RUNNING 2 #define PTH_WQITEM_COMPLETED 4 #define PTH_WQITEM_REMOVED 8 #define PTH_WQITEM_BARRIER 0x10 #define PTH_WQITEM_DESTROY 0x20 #define PTH_WQITEM_NOTINLIST 0x40 #define PTH_WQITEM_APPLIED 0x80 #define PTH_WQITEM_KERN_COUNT 0x100 /* 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 _PTHREAD_WORKQUEUE_HEAD_T typedef struct _pthread_workqueue_head { TAILQ_HEAD(, _pthread_workqueue) wqhead; struct _pthread_workqueue * next_workq; } * 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 */ pthread_lock_t lock; /* Used for internal mutex on structure */ TAILQ_ENTRY(_pthread_workqueue) wq_list; /* workqueue list in prio */ TAILQ_HEAD(, _pthread_workitem) item_listhead; /* pthread_workitem list in prio */ TAILQ_HEAD(, _pthread_workitem) item_kernhead; /* pthread_workitem list in prio */ unsigned int flags; size_t stacksize; int istimeshare; int importance; int affinity; int queueprio; int barrier_count; int kq_count; void (*term_callback)(struct _pthread_workqueue *,void *); void * term_callarg; pthread_workqueue_head_t headp; int overcommit; #if !defined(__LP64__) unsigned int rev2[12]; #endif } * pthread_workqueue_t; #define PTHREAD_WORKQ_IN_CREATION 1 #define PTHREAD_WORKQ_IN_TERMINATE 2 #define PTHREAD_WORKQ_BARRIER_ON 4 #define PTHREAD_WORKQ_TERM_ON 8 #define PTHREAD_WORKQ_DESTROYED 0x10 #define PTHREAD_WORKQ_REQUEUED 0x20 #define PTHREAD_WORKQ_SUSPEND 0x40 #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_spis.h" #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. */ inline static pthread_t __attribute__((__pure__)) _pthread_self_direct(void) { pthread_t ret; #if defined(__i386__) || defined(__x86_64__) 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; } #define pthread_self() _pthread_self_direct() #endif #define _PTHREAD_DEFAULT_INHERITSCHED PTHREAD_INHERIT_SCHED #define _PTHREAD_DEFAULT_PROTOCOL PTHREAD_PRIO_NONE #define _PTHREAD_DEFAULT_PRIOCEILING 0 #define _PTHREAD_DEFAULT_POLICY SCHED_OTHER #define _PTHREAD_DEFAULT_STACKSIZE 0x80000 /* 512K */ #define _PTHREAD_DEFAULT_PSHARED PTHREAD_PROCESS_PRIVATE #define _PTHREAD_NO_SIG 0x00000000 #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' */ #define _PTHREAD_ATTR_SIG 0x54484441 /* 'THDA' */ #define _PTHREAD_ONCE_SIG 0x4F4E4345 /* 'ONCE' */ #define _PTHREAD_ONCE_SIG_init 0x30B1BCBA /* [almost] ~'ONCE' */ #define _PTHREAD_SIG 0x54485244 /* 'THRD' */ #define _PTHREAD_RWLOCK_ATTR_SIG 0x52574C41 /* 'RWLA' */ #define _PTHREAD_RWLOCK_SIG 0x52574C4B /* 'RWLK' */ #define _PTHREAD_RWLOCK_SIG_init 0x2DA8B3B4 /* [almost] ~'RWLK' */ #define _PTHREAD_KERN_COND_SIG 0x12345678 /* */ #define _PTHREAD_KERN_MUTEX_SIG 0x34567812 /* */ #define _PTHREAD_KERN_RWLOCK_SIG 0x56781234 /* */ #define _PTHREAD_CREATE_PARENT 4 #define _PTHREAD_EXITED 8 // 4597450: begin #define _PTHREAD_WASCANCEL 0x10 // 4597450: end #if defined(DEBUG) #define _PTHREAD_MUTEX_OWNER_SELF pthread_self() #else #define _PTHREAD_MUTEX_OWNER_SELF (pthread_t)0x12141968 #endif #define _PTHREAD_MUTEX_OWNER_SWITCHING (pthread_t)(~0) #define _PTHREAD_CANCEL_STATE_MASK 0x01 #define _PTHREAD_CANCEL_TYPE_MASK 0x02 #define _PTHREAD_CANCEL_PENDING 0x10 /* pthread_cancel() has been called for this thread */ extern boolean_t swtch_pri(int); #ifndef PTHREAD_MACH_CALL #define PTHREAD_MACH_CALL(expr, ret) (ret) = (expr) #endif /* Prototypes. */ /* Functions defined in machine-dependent files. */ extern vm_address_t _sp(void); extern vm_address_t _adjust_sp(vm_address_t sp); extern void _pthread_setup(pthread_t th, void (*f)(pthread_t), void *sp, int suspended, int needresume); 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 */