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Diffstat (limited to 'nptl/pthreadP.h')
| -rw-r--r-- | nptl/pthreadP.h | 641 |
1 files changed, 0 insertions, 641 deletions
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h deleted file mode 100644 index 7fc1e50f78..0000000000 --- a/nptl/pthreadP.h +++ /dev/null @@ -1,641 +0,0 @@ -/* Copyright (C) 2002-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _PTHREADP_H -#define _PTHREADP_H 1 - -#include <pthread.h> -#include <setjmp.h> -#include <stdbool.h> -#include <sys/syscall.h> -#include "descr.h" -#include <tls.h> -#include <lowlevellock.h> -#include <stackinfo.h> -#include <internaltypes.h> -#include <pthread-functions.h> -#include <atomic.h> -#include <kernel-features.h> -#include <errno.h> -#include <nptl-signals.h> - - -/* Atomic operations on TLS memory. */ -#ifndef THREAD_ATOMIC_CMPXCHG_VAL -# define THREAD_ATOMIC_CMPXCHG_VAL(descr, member, new, old) \ - atomic_compare_and_exchange_val_acq (&(descr)->member, new, old) -#endif - -#ifndef THREAD_ATOMIC_BIT_SET -# define THREAD_ATOMIC_BIT_SET(descr, member, bit) \ - atomic_bit_set (&(descr)->member, bit) -#endif - - -/* Adaptive mutex definitions. */ -#ifndef MAX_ADAPTIVE_COUNT -# define MAX_ADAPTIVE_COUNT 100 -#endif - - -/* Magic cookie representing robust mutex with dead owner. */ -#define PTHREAD_MUTEX_INCONSISTENT INT_MAX -/* Magic cookie representing not recoverable robust mutex. */ -#define PTHREAD_MUTEX_NOTRECOVERABLE (INT_MAX - 1) - - -/* Internal mutex type value. */ -enum -{ - PTHREAD_MUTEX_KIND_MASK_NP = 3, - - PTHREAD_MUTEX_ELISION_NP = 256, - PTHREAD_MUTEX_NO_ELISION_NP = 512, - - PTHREAD_MUTEX_ROBUST_NORMAL_NP = 16, - PTHREAD_MUTEX_ROBUST_RECURSIVE_NP - = PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_RECURSIVE_NP, - PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP - = PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_ERRORCHECK_NP, - PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP - = PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_ADAPTIVE_NP, - PTHREAD_MUTEX_PRIO_INHERIT_NP = 32, - PTHREAD_MUTEX_PI_NORMAL_NP - = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_NORMAL, - PTHREAD_MUTEX_PI_RECURSIVE_NP - = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_RECURSIVE_NP, - PTHREAD_MUTEX_PI_ERRORCHECK_NP - = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ERRORCHECK_NP, - PTHREAD_MUTEX_PI_ADAPTIVE_NP - = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ADAPTIVE_NP, - PTHREAD_MUTEX_PI_ROBUST_NORMAL_NP - = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_NORMAL_NP, - PTHREAD_MUTEX_PI_ROBUST_RECURSIVE_NP - = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_RECURSIVE_NP, - PTHREAD_MUTEX_PI_ROBUST_ERRORCHECK_NP - = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP, - PTHREAD_MUTEX_PI_ROBUST_ADAPTIVE_NP - = PTHREAD_MUTEX_PRIO_INHERIT_NP | PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP, - PTHREAD_MUTEX_PRIO_PROTECT_NP = 64, - PTHREAD_MUTEX_PP_NORMAL_NP - = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_NORMAL, - PTHREAD_MUTEX_PP_RECURSIVE_NP - = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_RECURSIVE_NP, - PTHREAD_MUTEX_PP_ERRORCHECK_NP - = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ERRORCHECK_NP, - PTHREAD_MUTEX_PP_ADAPTIVE_NP - = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ADAPTIVE_NP, - PTHREAD_MUTEX_ELISION_FLAGS_NP - = PTHREAD_MUTEX_ELISION_NP | PTHREAD_MUTEX_NO_ELISION_NP, - - PTHREAD_MUTEX_TIMED_ELISION_NP = - PTHREAD_MUTEX_TIMED_NP | PTHREAD_MUTEX_ELISION_NP, - PTHREAD_MUTEX_TIMED_NO_ELISION_NP = - PTHREAD_MUTEX_TIMED_NP | PTHREAD_MUTEX_NO_ELISION_NP, -}; -#define PTHREAD_MUTEX_PSHARED_BIT 128 - -#define PTHREAD_MUTEX_TYPE(m) \ - ((m)->__data.__kind & 127) -/* Don't include NO_ELISION, as that type is always the same - as the underlying lock type. */ -#define PTHREAD_MUTEX_TYPE_ELISION(m) \ - ((m)->__data.__kind & (127|PTHREAD_MUTEX_ELISION_NP)) - -#if LLL_PRIVATE == 0 && LLL_SHARED == 128 -# define PTHREAD_MUTEX_PSHARED(m) \ - ((m)->__data.__kind & 128) -#else -# define PTHREAD_MUTEX_PSHARED(m) \ - (((m)->__data.__kind & 128) ? LLL_SHARED : LLL_PRIVATE) -#endif - -/* The kernel when waking robust mutexes on exit never uses - FUTEX_PRIVATE_FLAG FUTEX_WAKE. */ -#define PTHREAD_ROBUST_MUTEX_PSHARED(m) LLL_SHARED - -/* Ceiling in __data.__lock. __data.__lock is signed, so don't - use the MSB bit in there, but in the mask also include that bit, - so that the compiler can optimize & PTHREAD_MUTEX_PRIO_CEILING_MASK - masking if the value is then shifted down by - PTHREAD_MUTEX_PRIO_CEILING_SHIFT. */ -#define PTHREAD_MUTEX_PRIO_CEILING_SHIFT 19 -#define PTHREAD_MUTEX_PRIO_CEILING_MASK 0xfff80000 - - -/* Flags in mutex attr. */ -#define PTHREAD_MUTEXATTR_PROTOCOL_SHIFT 28 -#define PTHREAD_MUTEXATTR_PROTOCOL_MASK 0x30000000 -#define PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT 12 -#define PTHREAD_MUTEXATTR_PRIO_CEILING_MASK 0x00fff000 -#define PTHREAD_MUTEXATTR_FLAG_ROBUST 0x40000000 -#define PTHREAD_MUTEXATTR_FLAG_PSHARED 0x80000000 -#define PTHREAD_MUTEXATTR_FLAG_BITS \ - (PTHREAD_MUTEXATTR_FLAG_ROBUST | PTHREAD_MUTEXATTR_FLAG_PSHARED \ - | PTHREAD_MUTEXATTR_PROTOCOL_MASK | PTHREAD_MUTEXATTR_PRIO_CEILING_MASK) - - -/* For the following, see pthread_rwlock_common.c. */ -#define PTHREAD_RWLOCK_WRPHASE 1 -#define PTHREAD_RWLOCK_WRLOCKED 2 -#define PTHREAD_RWLOCK_RWAITING 4 -#define PTHREAD_RWLOCK_READER_SHIFT 3 -#define PTHREAD_RWLOCK_READER_OVERFLOW ((unsigned int) 1 \ - << (sizeof (unsigned int) * 8 - 1)) -#define PTHREAD_RWLOCK_WRHANDOVER ((unsigned int) 1 \ - << (sizeof (unsigned int) * 8 - 1)) -#define PTHREAD_RWLOCK_FUTEX_USED 2 - - -/* Bits used in robust mutex implementation. */ -#define FUTEX_WAITERS 0x80000000 -#define FUTEX_OWNER_DIED 0x40000000 -#define FUTEX_TID_MASK 0x3fffffff - - -/* pthread_once definitions. See __pthread_once for how these are used. */ -#define __PTHREAD_ONCE_INPROGRESS 1 -#define __PTHREAD_ONCE_DONE 2 -#define __PTHREAD_ONCE_FORK_GEN_INCR 4 - - -/* Condition variable definitions. See __pthread_cond_wait_common. - Need to be defined here so there is one place from which - nptl_lock_constants can grab them. */ -#define __PTHREAD_COND_CLOCK_MONOTONIC_MASK 2 -#define __PTHREAD_COND_SHARED_MASK 1 - - -/* Internal variables. */ - - -/* Default pthread attributes. */ -extern struct pthread_attr __default_pthread_attr attribute_hidden; -extern int __default_pthread_attr_lock attribute_hidden; - -/* Size and alignment of static TLS block. */ -extern size_t __static_tls_size attribute_hidden; -extern size_t __static_tls_align_m1 attribute_hidden; - -/* Flag whether the machine is SMP or not. */ -extern int __is_smp attribute_hidden; - -/* Thread descriptor handling. */ -extern list_t __stack_user; -hidden_proto (__stack_user) - -/* Attribute handling. */ -extern struct pthread_attr *__attr_list attribute_hidden; -extern int __attr_list_lock attribute_hidden; - -/* Concurrency handling. */ -extern int __concurrency_level attribute_hidden; - -/* Thread-local data key handling. */ -extern struct pthread_key_struct __pthread_keys[PTHREAD_KEYS_MAX]; -hidden_proto (__pthread_keys) - -/* Number of threads running. */ -extern unsigned int __nptl_nthreads attribute_hidden; - -#ifndef __ASSUME_SET_ROBUST_LIST -/* Negative if we do not have the system call and we can use it. */ -extern int __set_robust_list_avail attribute_hidden; -#endif - -/* Thread Priority Protection. */ -extern int __sched_fifo_min_prio attribute_hidden; -extern int __sched_fifo_max_prio attribute_hidden; -extern void __init_sched_fifo_prio (void) attribute_hidden; -extern int __pthread_tpp_change_priority (int prev_prio, int new_prio) - attribute_hidden; -extern int __pthread_current_priority (void) attribute_hidden; - -/* The library can run in debugging mode where it performs a lot more - tests. */ -extern int __pthread_debug attribute_hidden; -/** For now disable debugging support. */ -#if 0 -# define DEBUGGING_P __builtin_expect (__pthread_debug, 0) -# define INVALID_TD_P(pd) (DEBUGGING_P && __find_in_stack_list (pd) == NULL) -# define INVALID_NOT_TERMINATED_TD_P(pd) INVALID_TD_P (pd) -#else -# define DEBUGGING_P 0 -/* Simplified test. This will not catch all invalid descriptors but - is better than nothing. And if the test triggers the thread - descriptor is guaranteed to be invalid. */ -# define INVALID_TD_P(pd) __builtin_expect ((pd)->tid <= 0, 0) -# define INVALID_NOT_TERMINATED_TD_P(pd) __builtin_expect ((pd)->tid < 0, 0) -#endif - - -/* Cancellation test. */ -#define CANCELLATION_P(self) \ - do { \ - int cancelhandling = THREAD_GETMEM (self, cancelhandling); \ - if (CANCEL_ENABLED_AND_CANCELED (cancelhandling)) \ - { \ - THREAD_SETMEM (self, result, PTHREAD_CANCELED); \ - __do_cancel (); \ - } \ - } while (0) - - -extern void __pthread_unwind (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute __attribute ((__noreturn__)) -#if !defined SHARED && !IS_IN (libpthread) - weak_function -#endif - ; -extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute __attribute ((__noreturn__)) -#ifndef SHARED - weak_function -#endif - ; -extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute; -extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute; -#if IS_IN (libpthread) -hidden_proto (__pthread_unwind) -hidden_proto (__pthread_unwind_next) -hidden_proto (__pthread_register_cancel) -hidden_proto (__pthread_unregister_cancel) -# ifdef SHARED -extern void attribute_hidden pthread_cancel_init (void); -extern void __unwind_freeres (void); -# endif -#endif - - -/* Called when a thread reacts on a cancellation request. */ -static inline void -__attribute ((noreturn, always_inline)) -__do_cancel (void) -{ - struct pthread *self = THREAD_SELF; - - /* Make sure we get no more cancellations. */ - THREAD_ATOMIC_BIT_SET (self, cancelhandling, EXITING_BIT); - - __pthread_unwind ((__pthread_unwind_buf_t *) - THREAD_GETMEM (self, cleanup_jmp_buf)); -} - - -/* Set cancellation mode to asynchronous. */ -#define CANCEL_ASYNC() \ - __pthread_enable_asynccancel () -/* Reset to previous cancellation mode. */ -#define CANCEL_RESET(oldtype) \ - __pthread_disable_asynccancel (oldtype) - -#if IS_IN (libc) -/* Same as CANCEL_ASYNC, but for use in libc.so. */ -# define LIBC_CANCEL_ASYNC() \ - __libc_enable_asynccancel () -/* Same as CANCEL_RESET, but for use in libc.so. */ -# define LIBC_CANCEL_RESET(oldtype) \ - __libc_disable_asynccancel (oldtype) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__libc_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__libc_disable_asynccancel") -#elif IS_IN (libpthread) -# define LIBC_CANCEL_ASYNC() CANCEL_ASYNC () -# define LIBC_CANCEL_RESET(val) CANCEL_RESET (val) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__pthread_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__pthread_disable_asynccancel") -#elif IS_IN (librt) -# define LIBC_CANCEL_ASYNC() \ - __librt_enable_asynccancel () -# define LIBC_CANCEL_RESET(val) \ - __librt_disable_asynccancel (val) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__librt_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__librt_disable_asynccancel") -#else -# define LIBC_CANCEL_ASYNC() 0 /* Just a dummy value. */ -# define LIBC_CANCEL_RESET(val) ((void)(val)) /* Nothing, but evaluate it. */ -# define LIBC_CANCEL_HANDLED() /* Nothing. */ -#endif - - -/* Internal prototypes. */ - -/* Thread list handling. */ -extern struct pthread *__find_in_stack_list (struct pthread *pd) - attribute_hidden internal_function; - -/* Deallocate a thread's stack after optionally making sure the thread - descriptor is still valid. */ -extern void __free_tcb (struct pthread *pd) attribute_hidden internal_function; - -/* Free allocated stack. */ -extern void __deallocate_stack (struct pthread *pd) - attribute_hidden internal_function; - -/* Mark all the stacks except for the current one as available. This - function also re-initializes the lock for the stack cache. */ -extern void __reclaim_stacks (void) attribute_hidden; - -/* Make all threads's stacks executable. */ -extern int __make_stacks_executable (void **stack_endp) - internal_function attribute_hidden; - -/* longjmp handling. */ -extern void __pthread_cleanup_upto (__jmp_buf target, char *targetframe); -#if IS_IN (libpthread) -hidden_proto (__pthread_cleanup_upto) -#endif - - -/* Functions with versioned interfaces. */ -extern int __pthread_create_2_1 (pthread_t *newthread, - const pthread_attr_t *attr, - void *(*start_routine) (void *), void *arg); -extern int __pthread_create_2_0 (pthread_t *newthread, - const pthread_attr_t *attr, - void *(*start_routine) (void *), void *arg); -extern int __pthread_attr_init_2_1 (pthread_attr_t *attr); -extern int __pthread_attr_init_2_0 (pthread_attr_t *attr); - - -/* Event handlers for libthread_db interface. */ -extern void __nptl_create_event (void); -extern void __nptl_death_event (void); -hidden_proto (__nptl_create_event) -hidden_proto (__nptl_death_event) - -/* Register the generation counter in the libpthread with the libc. */ -#ifdef TLS_MULTIPLE_THREADS_IN_TCB -extern void __libc_pthread_init (unsigned long int *ptr, - void (*reclaim) (void), - const struct pthread_functions *functions) - internal_function; -#else -extern int *__libc_pthread_init (unsigned long int *ptr, - void (*reclaim) (void), - const struct pthread_functions *functions) - internal_function; - -/* Variable set to a nonzero value either if more than one thread runs or ran, - or if a single-threaded process is trying to cancel itself. See - nptl/descr.h for more context on the single-threaded process case. */ -extern int __pthread_multiple_threads attribute_hidden; -/* Pointer to the corresponding variable in libc. */ -extern int *__libc_multiple_threads_ptr attribute_hidden; -#endif - -/* Find a thread given its TID. */ -extern struct pthread *__find_thread_by_id (pid_t tid) attribute_hidden -#ifdef SHARED -; -#else -weak_function; -#define __find_thread_by_id(tid) \ - (__find_thread_by_id ? (__find_thread_by_id) (tid) : (struct pthread *) NULL) -#endif - -extern void __pthread_init_static_tls (struct link_map *) attribute_hidden; - -extern size_t __pthread_get_minstack (const pthread_attr_t *attr); - -/* Namespace save aliases. */ -extern int __pthread_getschedparam (pthread_t thread_id, int *policy, - struct sched_param *param); -extern int __pthread_setschedparam (pthread_t thread_id, int policy, - const struct sched_param *param); -extern int __pthread_setcancelstate (int state, int *oldstate); -extern int __pthread_mutex_init (pthread_mutex_t *__mutex, - const pthread_mutexattr_t *__mutexattr); -extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex); -extern int __pthread_mutex_trylock (pthread_mutex_t *_mutex); -extern int __pthread_mutex_lock (pthread_mutex_t *__mutex); -extern int __pthread_mutex_cond_lock (pthread_mutex_t *__mutex) - attribute_hidden internal_function; -extern void __pthread_mutex_cond_lock_adjust (pthread_mutex_t *__mutex) - attribute_hidden internal_function; -extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex); -extern int __pthread_mutex_unlock_usercnt (pthread_mutex_t *__mutex, - int __decr) - attribute_hidden internal_function; -extern int __pthread_mutexattr_init (pthread_mutexattr_t *attr); -extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *attr); -extern int __pthread_mutexattr_settype (pthread_mutexattr_t *attr, int kind); -extern int __pthread_attr_destroy (pthread_attr_t *attr); -extern int __pthread_attr_getdetachstate (const pthread_attr_t *attr, - int *detachstate); -extern int __pthread_attr_setdetachstate (pthread_attr_t *attr, - int detachstate); -extern int __pthread_attr_getinheritsched (const pthread_attr_t *attr, - int *inherit); -extern int __pthread_attr_setinheritsched (pthread_attr_t *attr, int inherit); -extern int __pthread_attr_getschedparam (const pthread_attr_t *attr, - struct sched_param *param); -extern int __pthread_attr_setschedparam (pthread_attr_t *attr, - const struct sched_param *param); -extern int __pthread_attr_getschedpolicy (const pthread_attr_t *attr, - int *policy); -extern int __pthread_attr_setschedpolicy (pthread_attr_t *attr, int policy); -extern int __pthread_attr_getscope (const pthread_attr_t *attr, int *scope); -extern int __pthread_attr_setscope (pthread_attr_t *attr, int scope); -extern int __pthread_attr_getstackaddr (const pthread_attr_t *__restrict - __attr, void **__restrict __stackaddr); -extern int __pthread_attr_setstackaddr (pthread_attr_t *__attr, - void *__stackaddr); -extern int __pthread_attr_getstacksize (const pthread_attr_t *__restrict - __attr, - size_t *__restrict __stacksize); -extern int __pthread_attr_setstacksize (pthread_attr_t *__attr, - size_t __stacksize); -extern int __pthread_attr_getstack (const pthread_attr_t *__restrict __attr, - void **__restrict __stackaddr, - size_t *__restrict __stacksize); -extern int __pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr, - size_t __stacksize); -extern int __pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock, - const pthread_rwlockattr_t *__restrict - __attr); -extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock); -extern int __pthread_cond_broadcast (pthread_cond_t *cond); -extern int __pthread_cond_destroy (pthread_cond_t *cond); -extern int __pthread_cond_init (pthread_cond_t *cond, - const pthread_condattr_t *cond_attr); -extern int __pthread_cond_signal (pthread_cond_t *cond); -extern int __pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex); -extern int __pthread_cond_timedwait (pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime); -extern int __pthread_condattr_destroy (pthread_condattr_t *attr); -extern int __pthread_condattr_init (pthread_condattr_t *attr); -extern int __pthread_key_create (pthread_key_t *key, void (*destr) (void *)); -extern void *__pthread_getspecific (pthread_key_t key); -extern int __pthread_setspecific (pthread_key_t key, const void *value); -extern int __pthread_once (pthread_once_t *once_control, - void (*init_routine) (void)); -extern int __pthread_atfork (void (*prepare) (void), void (*parent) (void), - void (*child) (void)); -extern pthread_t __pthread_self (void); -extern int __pthread_equal (pthread_t thread1, pthread_t thread2); -extern int __pthread_kill (pthread_t threadid, int signo); -extern void __pthread_exit (void *value) __attribute__ ((__noreturn__)); -extern int __pthread_setcanceltype (int type, int *oldtype); -extern int __pthread_enable_asynccancel (void) attribute_hidden; -extern void __pthread_disable_asynccancel (int oldtype) - internal_function attribute_hidden; -extern void __pthread_testcancel (void); - -#if IS_IN (libpthread) -hidden_proto (__pthread_mutex_init) -hidden_proto (__pthread_mutex_destroy) -hidden_proto (__pthread_mutex_lock) -hidden_proto (__pthread_mutex_unlock) -hidden_proto (__pthread_rwlock_rdlock) -hidden_proto (__pthread_rwlock_wrlock) -hidden_proto (__pthread_rwlock_unlock) -hidden_proto (__pthread_key_create) -hidden_proto (__pthread_getspecific) -hidden_proto (__pthread_setspecific) -hidden_proto (__pthread_once) -hidden_proto (__pthread_setcancelstate) -hidden_proto (__pthread_testcancel) -#endif - -extern int __pthread_cond_broadcast_2_0 (pthread_cond_2_0_t *cond); -extern int __pthread_cond_destroy_2_0 (pthread_cond_2_0_t *cond); -extern int __pthread_cond_init_2_0 (pthread_cond_2_0_t *cond, - const pthread_condattr_t *cond_attr); -extern int __pthread_cond_signal_2_0 (pthread_cond_2_0_t *cond); -extern int __pthread_cond_timedwait_2_0 (pthread_cond_2_0_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime); -extern int __pthread_cond_wait_2_0 (pthread_cond_2_0_t *cond, - pthread_mutex_t *mutex); - -extern int __pthread_getaffinity_np (pthread_t th, size_t cpusetsize, - cpu_set_t *cpuset); - -/* The two functions are in libc.so and not exported. */ -extern int __libc_enable_asynccancel (void) attribute_hidden; -extern void __libc_disable_asynccancel (int oldtype) - internal_function attribute_hidden; - - -/* The two functions are in librt.so and not exported. */ -extern int __librt_enable_asynccancel (void) attribute_hidden; -extern void __librt_disable_asynccancel (int oldtype) - internal_function attribute_hidden; - -#if IS_IN (libpthread) -/* Special versions which use non-exported functions. */ -extern void __pthread_cleanup_push (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg) - attribute_hidden; - -/* Replace cleanup macros defined in <pthread.h> with internal - versions that don't depend on unwind info and better support - cancellation. */ -# undef pthread_cleanup_push -# define pthread_cleanup_push(routine,arg) \ - { struct _pthread_cleanup_buffer _buffer; \ - __pthread_cleanup_push (&_buffer, (routine), (arg)); - -extern void __pthread_cleanup_pop (struct _pthread_cleanup_buffer *buffer, - int execute) attribute_hidden; -# undef pthread_cleanup_pop -# define pthread_cleanup_pop(execute) \ - __pthread_cleanup_pop (&_buffer, (execute)); } -#endif - -extern void __pthread_cleanup_push_defer (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg); -extern void __pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *buffer, - int execute); - -/* Old cleanup interfaces, still used in libc.so. */ -extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg); -extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer *buffer, - int execute); -extern void _pthread_cleanup_push_defer (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg); -extern void _pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *buffer, - int execute); - -extern void __nptl_deallocate_tsd (void) attribute_hidden; - -extern void __nptl_setxid_error (struct xid_command *cmdp, int error) - attribute_hidden; -extern int __nptl_setxid (struct xid_command *cmdp) attribute_hidden; -#ifndef SHARED -extern void __nptl_set_robust (struct pthread *self); -#endif - -extern void __free_stacks (size_t limit) attribute_hidden; - -extern void __wait_lookup_done (void) attribute_hidden; - -#ifdef SHARED -# define PTHREAD_STATIC_FN_REQUIRE(name) -#else -# define PTHREAD_STATIC_FN_REQUIRE(name) __asm (".globl " #name); -#endif - -/* Returns 0 if POL is a valid scheduling policy. */ -static inline int -check_sched_policy_attr (int pol) -{ - if (pol == SCHED_OTHER || pol == SCHED_FIFO || pol == SCHED_RR) - return 0; - - return EINVAL; -} - -/* Returns 0 if PR is within the accepted range of priority values for - the scheduling policy POL or EINVAL otherwise. */ -static inline int -check_sched_priority_attr (int pr, int pol) -{ - int min = __sched_get_priority_min (pol); - int max = __sched_get_priority_max (pol); - - if (min >= 0 && max >= 0 && pr >= min && pr <= max) - return 0; - - return EINVAL; -} - -/* Returns 0 if ST is a valid stack size for a thread stack and EINVAL - otherwise. */ -static inline int -check_stacksize_attr (size_t st) -{ - if (st >= PTHREAD_STACK_MIN) - return 0; - - return EINVAL; -} - -#endif /* pthreadP.h */ |