#include <errno.h>
#include <mach/mach.h>
#include <mach/mach_error.h>
+#include <libkern/OSAtomic.h>
#ifndef __POSIX_LIB__
/*
* 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,
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
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;
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;
/*
{
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,
/*
* 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? */
+ rfu:4,
+ lock_count:16;
+};
+
+
+#define _PTHREAD_MTX_OPT_PSHARED 0x010
+#define _PTHREAD_MTX_OPT_HOLD 0x200
+#define _PTHREAD_MTX_OPT_NOHOLD 0x400
+#define _PTHREAD_MTX_OPT_LASTDROP (_PTHREAD_MTX_OPT_NOHOLD | _PTHREAD_MTX_OPT_HOLD)
+
+
#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
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;
{
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
*/
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 _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_lseqaddr;
+ volatile uint32_t * rw_wcaddr;
+ volatile uint32_t * rw_useqaddr;
+ uint32_t rw_flags;
+ int misalign;
+#if defined(__LP64__)
+ uint32_t rfu[31];
+#else /* __LP64__ */
+ uint32_t rfu[18];
+#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 PTHRW_EBIT 0x01
+#define PTHRW_LBIT 0x02
+#define PTHRW_YBIT 0x04
+#define PTHRW_WBIT 0x08
+#define PTHRW_UBIT 0x10
+#define PTHRW_RETRYBIT 0x20
+#define PTHRW_SHADOW_W 0x20 /* same as 0x20, shadow W bit for rwlock */
+
+#define PTHRW_TRYLKBIT 0x40
+#define PTHRW_RW_HUNLOCK 0x40 /* readers responsible for handling unlock */
+
+#define PTHRW_MTX_NONE 0x80
+#define PTHRW_RW_INIT 0x80 /* reset on the lock bits */
+#define PTHRW_RW_SPURIOUS 0x80 /* same as 0x80, spurious rwlock unlock ret from kernel */
+
+#define PTHRW_INC 0x100
+#define PTHRW_BIT_MASK 0x000000ff
+#define PTHRW_UN_BIT_MASK 0x000000df /* remove shadow bit */
+
+#define PTHRW_COUNT_SHIFT 8
+#define PTHRW_COUNT_MASK 0xffffff00
+#define PTHRW_MAX_READERS 0xffffff00
+
+
+#define PTHREAD_MTX_TID_SWITCHING (uint64_t)-1
+
+#define is_rw_ewubit_set(x) (((x) & (PTHRW_EBIT | PTHRW_WBIT | PTHRW_UBIT)) != 0)
+#define is_rw_lbit_set(x) (((x) & PTHRW_LBIT) != 0)
+#define is_rw_lybit_set(x) (((x) & (PTHRW_LBIT | PTHRW_YBIT)) != 0)
+#define is_rw_ebit_set(x) (((x) & PTHRW_EBIT) != 0)
+#define is_rw_ebit_clear(x) (((x) & PTHRW_EBIT) == 0)
+#define is_rw_uebit_set(x) (((x) & (PTHRW_EBIT | PTHRW_UBIT)) != 0)
+#define is_rw_ewuybit_set(x) (((x) & (PTHRW_EBIT | PTHRW_WBIT | PTHRW_UBIT | PTHRW_YBIT)) != 0)
+#define is_rw_ewuybit_clear(x) (((x) & (PTHRW_EBIT | PTHRW_WBIT | PTHRW_UBIT | PTHRW_YBIT)) == 0)
+#define is_rw_ewubit_set(x) (((x) & (PTHRW_EBIT | PTHRW_WBIT | PTHRW_UBIT)) != 0)
+#define is_rw_ewubit_clear(x) (((x) & (PTHRW_EBIT | PTHRW_WBIT | PTHRW_UBIT)) == 0)
+
+/* is x lower than Y */
+#define is_seqlower(x, y) ((x < y) || ((x - y) > (PTHRW_MAX_READERS/2)))
+/* is x lower than or eq Y */
+#define is_seqlower_eq(x, y) ((x <= y) || ((x - y) > (PTHRW_MAX_READERS/2)))
+
+/* is x greater than Y */
+#define is_seqhigher(x, y) ((x > y) || ((y - x) > (PTHRW_MAX_READERS/2)))
+
+static inline int diff_genseq(uint32_t x, uint32_t y) {
+ if (x > y) {
+ return(x-y);
+ } else {
+ return((PTHRW_MAX_READERS - y) + x +1);
+ }
+}
+
/* 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
void * func_arg;
struct _pthread_workqueue * workq;
unsigned int flags;
+ unsigned int gencount;
} * pthread_workitem_t;
#define PTH_WQITEM_INKERNEL_QUEUE 1
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 WQ_NUM_PRIO_QS 3 /* WORKQ_HIGH/DEFAULT/LOW_PRIOQUEUE */
#define _PTHREAD_WORKQUEUE_HEAD_T
typedef struct _pthread_workqueue_head {
void (*term_callback)(struct _pthread_workqueue *,void *);
void * term_callarg;
pthread_workqueue_head_t headp;
- int suspend_count;
+ int overcommit;
#if defined(__ppc64__) || defined(__x86_64__)
unsigned int rev2[2];
#else
#include "pthread.h"
-#if defined(__i386__) || defined(__ppc64__) || defined(__x86_64__) || defined(__arm__)
+#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.
#elif defined(__ppc64__)
register const pthread_t __pthread_self asm ("r13");
ret = __pthread_self;
-#elif defined(__arm__)
+#elif defined(__arm__) && defined(_ARM_ARCH_6)
+ __asm__ ("mrc p15, 0, %0, c13, c0, 3" : "=r"(ret));
+#elif defined(__arm__) && !defined(_ARM_ARCH_6)
register const pthread_t __pthread_self asm ("r9");
ret = __pthread_self;
#endif
extern void _pthread_tsd_cleanup(pthread_t self);
+#if defined(__i386__) || defined(__x86_64__)
+__private_extern__ void __mtx_holdlock(npthread_mutex_t *mutex, uint32_t diff, uint32_t * flagp, uint32_t ** pmtxp, uint32_t * mgenp, uint32_t * ugenp);
+__private_extern__ int __mtx_droplock(npthread_mutex_t *mutex, int count, uint32_t * flagp, uint32_t ** pmtxp, uint32_t * mgenp, uint32_t * ugenp, uint32_t * notifyp);
+__private_extern__ int __mtx_updatebits(npthread_mutex_t *mutex, uint32_t updateval, int firstfiti, int fromcond);
+
+/* 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 int __psynch_cvbroad(pthread_cond_t * cv, uint32_t cvgen, uint32_t diffgen, pthread_mutex_t * mutex, uint32_t mgen, uint32_t ugen, uint64_t tid, uint32_t flags);
+extern int __psynch_cvsignal(pthread_cond_t * cv, uint32_t cvgen, uint32_t cvugen, pthread_mutex_t * mutex, uint32_t mgen, uint32_t ugen, int thread_port, uint32_t flags);
+extern uint32_t __psynch_cvwait(pthread_cond_t * cv, uint32_t cvgen, uint32_t cvugen, pthread_mutex_t * mutex, uint32_t mgen, uint32_t ugen, uint64_t sec, uint64_t usec);
+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);
+#endif /* __i386__ || __x86_64__ */
+
__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);
+
#endif /* _POSIX_PTHREAD_INTERNALS_H */
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