diff options
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/pthreadP.h | 739 |
1 files changed, 0 insertions, 739 deletions
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h deleted file mode 100644 index 675d1de753..0000000000 --- a/nptl/pthreadP.h +++ /dev/null @@ -1,739 +0,0 @@ -/* Copyright (C) 2002-2021 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 - <https://www.gnu.org/licenses/>. */ - -#ifndef _PTHREADP_H -#define _PTHREADP_H 1 - -#define __PTHREAD_NPTL - -#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 <atomic.h> -#include <kernel-features.h> -#include <errno.h> -#include <internal-signals.h> -#include "pthread_mutex_conf.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 - - -static inline short max_adaptive_count (void) -{ -#if HAVE_TUNABLES - return __mutex_aconf.spin_count; -#else - return DEFAULT_ADAPTIVE_COUNT; -#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 - -/* See concurrency notes regarding __kind in struct __pthread_mutex_s - in sysdeps/nptl/bits/thread-shared-types.h. */ -#define PTHREAD_MUTEX_TYPE(m) \ - (atomic_load_relaxed (&((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) \ - (atomic_load_relaxed (&((m)->__data.__kind)) \ - & (127 | PTHREAD_MUTEX_ELISION_NP)) - -#if LLL_PRIVATE == 0 && LLL_SHARED == 128 -# define PTHREAD_MUTEX_PSHARED(m) \ - (atomic_load_relaxed (&((m)->__data.__kind)) & 128) -#else -# define PTHREAD_MUTEX_PSHARED(m) \ - ((atomic_load_relaxed (&((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 - -/* Attribute to indicate thread creation was issued from C11 thrd_create. */ -#define ATTR_C11_THREAD ((void*)(uintptr_t)-1) - - -/* 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 union pthread_attr_transparent __default_pthread_attr; -libc_hidden_proto (__default_pthread_attr) -extern int __default_pthread_attr_lock; -libc_hidden_proto (__default_pthread_attr_lock) -/* Called from __libc_freeres to deallocate the default attribute. */ -extern void __default_pthread_attr_freeres (void) attribute_hidden; - -/* 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]; -libc_hidden_proto (__pthread_keys) - -/* Number of threads running. */ -extern unsigned int __nptl_nthreads; -libc_hidden_proto (__nptl_nthreads) - -#ifndef __ASSUME_SET_ROBUST_LIST -/* True if the set_robust_list system call works. Initialized in - __tls_init_tp. */ -extern bool __nptl_set_robust_list_avail; -rtld_hidden_proto (__nptl_set_robust_list_avail) -#endif - -/* Thread Priority Protection. */ -extern int __sched_fifo_min_prio; -libc_hidden_proto (__sched_fifo_min_prio) -extern int __sched_fifo_max_prio; -libc_hidden_proto (__sched_fifo_max_prio) -extern void __init_sched_fifo_prio (void); -libc_hidden_proto (__init_sched_fifo_prio) -extern int __pthread_tpp_change_priority (int prev_prio, int new_prio); -libc_hidden_proto (__pthread_tpp_change_priority) -extern int __pthread_current_priority (void); -libc_hidden_proto (__pthread_current_priority) - -/* 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) - -extern void __pthread_unwind (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute __attribute ((__noreturn__)) -#if !defined SHARED && !IS_IN (libpthread) - weak_function -#endif - ; -libc_hidden_proto (__pthread_unwind) -extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute __attribute ((__noreturn__)) -#ifndef SHARED - weak_function -#endif - ; -/* NB: No hidden proto for __pthread_unwind_next: inside glibc, the - legacy unwinding mechanism is used. */ - -extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute; -libc_hidden_proto (__pthread_register_cancel) -extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute; -libc_hidden_proto (__pthread_unregister_cancel) - -/* 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)); -} - - -/* Internal prototypes. */ - -/* Deallocate a thread's stack after optionally making sure the thread - descriptor is still valid. */ -extern void __nptl_free_tcb (struct pthread *pd); -libc_hidden_proto (__nptl_free_tcb) - -/* Change the permissions of a thread stack. Called from - _dl_make_stacks_executable and pthread_create. */ -int -__nptl_change_stack_perm (struct pthread *pd); -rtld_hidden_proto (__nptl_change_stack_perm) - -/* longjmp handling. */ -extern void __pthread_cleanup_upto (__jmp_buf target, char *targetframe); -libc_hidden_proto (__pthread_cleanup_upto) - - -/* Functions with versioned interfaces. */ -extern int __pthread_create (pthread_t *newthread, - const pthread_attr_t *attr, - void *(*start_routine) (void *), void *arg); -libc_hidden_proto (__pthread_create) -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 (pthread_attr_t *attr); -libc_hidden_proto (__pthread_attr_init) -extern int __pthread_attr_init_2_0 (pthread_attr_t *attr); - -/* Part of the legacy thread events interface (which has been - superseded by PTRACE_O_TRACECLONE). This can be set by the - debugger before initialization is complete. */ -extern bool __nptl_initial_report_events; -rtld_hidden_proto (__nptl_initial_report_events) - -/* Event handlers for libthread_db interface. */ -extern void __nptl_create_event (void); -extern void __nptl_death_event (void); -libc_hidden_proto (__nptl_create_event) -libc_hidden_proto (__nptl_death_event) - -/* The fork generation counter, defined in libpthread. */ -extern unsigned long int __fork_generation attribute_hidden; - -/* Pointer to the fork generation counter in the thread library. */ -extern unsigned long int *__fork_generation_pointer attribute_hidden; - -extern size_t __pthread_get_minstack (const pthread_attr_t *attr); -libc_hidden_proto (__pthread_get_minstack) - -/* 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_mutex_init (pthread_mutex_t *__mutex, - const pthread_mutexattr_t *__mutexattr); -libc_hidden_proto (__pthread_mutex_init) -extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex); -libc_hidden_proto (__pthread_mutex_destroy) -extern int __pthread_mutex_trylock (pthread_mutex_t *_mutex); -libc_hidden_proto (__pthread_mutex_trylock) -extern int __pthread_mutex_lock (pthread_mutex_t *__mutex); -libc_hidden_proto (__pthread_mutex_lock) -extern int __pthread_mutex_timedlock (pthread_mutex_t *__mutex, - const struct timespec *__abstime); -extern int __pthread_mutex_cond_lock (pthread_mutex_t *__mutex) - attribute_hidden; -extern void __pthread_mutex_cond_lock_adjust (pthread_mutex_t *__mutex) - attribute_hidden; -extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex); -libc_hidden_proto (__pthread_mutex_unlock) -extern int __pthread_mutex_unlock_usercnt (pthread_mutex_t *__mutex, - int __decr); -libc_hidden_proto (__pthread_mutex_unlock_usercnt) -extern int __pthread_mutexattr_init (pthread_mutexattr_t *attr); -libc_hidden_proto (__pthread_mutexattr_init) -extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *attr); -extern int __pthread_mutexattr_settype (pthread_mutexattr_t *attr, int kind); -libc_hidden_proto (__pthread_mutexattr_settype) -extern int __pthread_attr_destroy (pthread_attr_t *attr); -libc_hidden_proto (__pthread_attr_destroy) -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); -int __pthread_attr_setaffinity_np (pthread_attr_t *, size_t, const cpu_set_t *); -libc_hidden_proto (__pthread_attr_setaffinity_np) -extern __typeof (pthread_getattr_default_np) __pthread_getattr_default_np; -libc_hidden_proto (__pthread_getattr_default_np) -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); -libc_hidden_proto (__pthread_rwlock_rdlock) -extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock); -libc_hidden_proto (__pthread_rwlock_wrlock) -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); -libc_hidden_proto (__pthread_cond_broadcast) -extern int __pthread_cond_destroy (pthread_cond_t *cond); -libc_hidden_proto (__pthread_cond_destroy) -extern int __pthread_cond_init (pthread_cond_t *cond, - const pthread_condattr_t *cond_attr); -libc_hidden_proto (__pthread_cond_init) -extern int __pthread_cond_signal (pthread_cond_t *cond); -libc_hidden_proto (__pthread_cond_signal) -extern int __pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex); -libc_hidden_proto (__pthread_cond_wait) - -#if __TIMESIZE == 64 -# define __pthread_clockjoin_np64 __pthread_clockjoin_np -# define __pthread_timedjoin_np64 __pthread_timedjoin_np -# define __pthread_cond_timedwait64 __pthread_cond_timedwait -# define __pthread_cond_clockwait64 __pthread_cond_clockwait -# define __pthread_rwlock_clockrdlock64 __pthread_rwlock_clockrdlock -# define __pthread_rwlock_clockwrlock64 __pthread_rwlock_clockwrlock -# define __pthread_rwlock_timedrdlock64 __pthread_rwlock_timedrdlock -# define __pthread_rwlock_timedwrlock64 __pthread_rwlock_timedwrlock -# define __pthread_mutex_clocklock64 __pthread_mutex_clocklock -# define __pthread_mutex_timedlock64 __pthread_mutex_timedlock -#else -extern int __pthread_clockjoin_np64 (pthread_t threadid, void **thread_return, - clockid_t clockid, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_clockjoin_np64) -extern int __pthread_timedjoin_np64 (pthread_t threadid, void **thread_return, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_timedjoin_np64) -extern int __pthread_cond_timedwait64 (pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_cond_timedwait64) -extern int __pthread_cond_clockwait64 (pthread_cond_t *cond, - pthread_mutex_t *mutex, - clockid_t clockid, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_cond_clockwait64) -extern int __pthread_rwlock_clockrdlock64 (pthread_rwlock_t *rwlock, - clockid_t clockid, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_rwlock_clockrdlock64) -extern int __pthread_rwlock_clockwrlock64 (pthread_rwlock_t *rwlock, - clockid_t clockid, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_rwlock_clockwrlock64) -extern int __pthread_rwlock_timedrdlock64 (pthread_rwlock_t *rwlock, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_rwlock_timedrdlock64) -extern int __pthread_rwlock_timedwrlock64 (pthread_rwlock_t *rwlock, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_rwlock_timedwrlock64) -extern int __pthread_mutex_clocklock64 (pthread_mutex_t *mutex, - clockid_t clockid, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_mutex_clocklock64) -extern int __pthread_mutex_timedlock64 (pthread_mutex_t *mutex, - const struct __timespec64 *abstime); -libc_hidden_proto (__pthread_mutex_timedlock64) -#endif - -extern int __pthread_cond_timedwait (pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime); -libc_hidden_proto (__pthread_cond_timedwait) -extern int __pthread_cond_clockwait (pthread_cond_t *cond, - pthread_mutex_t *mutex, - clockid_t clockid, - const struct timespec *abstime) - __nonnull ((1, 2, 4)); -libc_hidden_proto (__pthread_cond_clockwait) - -extern int __pthread_mutex_clocklock (pthread_mutex_t *mutex, - clockid_t clockid, - const struct timespec *abstime); -libc_hidden_proto (__pthread_mutex_clocklock) -extern int __pthread_mutex_timedlock (pthread_mutex_t *mutex, - const struct timespec *abstime); -libc_hidden_proto (__pthread_mutex_timedlock) - -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 *)); -libc_hidden_proto (__pthread_key_create) -extern int __pthread_key_delete (pthread_key_t key); -libc_hidden_proto (__pthread_key_delete) -extern void *__pthread_getspecific (pthread_key_t key); -libc_hidden_proto (__pthread_getspecific) -extern int __pthread_setspecific (pthread_key_t key, const void *value); -libc_hidden_proto (__pthread_setspecific) -extern int __pthread_once (pthread_once_t *once_control, - void (*init_routine) (void)); -libc_hidden_proto (__pthread_once) -extern int __pthread_atfork (void (*prepare) (void), void (*parent) (void), - void (*child) (void)); -libc_hidden_proto (__pthread_self) -extern int __pthread_equal (pthread_t thread1, pthread_t thread2); -extern int __pthread_detach (pthread_t th); -libc_hidden_proto (__pthread_detach) -extern int __pthread_kill (pthread_t threadid, int signo); -libc_hidden_proto (__pthread_kill) -extern int __pthread_cancel (pthread_t th); -extern int __pthread_kill_internal (pthread_t threadid, int signo) - attribute_hidden; -extern void __pthread_exit (void *value) __attribute__ ((__noreturn__)); -libc_hidden_proto (__pthread_exit) -extern int __pthread_join (pthread_t threadid, void **thread_return); -libc_hidden_proto (__pthread_join) -extern int __pthread_setcanceltype (int type, int *oldtype); -libc_hidden_proto (__pthread_setcanceltype) -extern void __pthread_testcancel (void); -libc_hidden_proto (__pthread_testcancel) -extern int __pthread_clockjoin_ex (pthread_t, void **, clockid_t, - const struct __timespec64 *, bool) - attribute_hidden; -extern int __pthread_sigmask (int, const sigset_t *, sigset_t *); -libc_hidden_proto (__pthread_sigmask); - - -#if IS_IN (libpthread) -hidden_proto (__pthread_rwlock_unlock) -#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); -libc_hidden_proto (__pthread_getaffinity_np) - -/* Special internal version of pthread_attr_setsigmask_np which does - not filter out internal signals from *SIGMASK. This can be used to - launch threads with internal signals blocked. */ - extern int __pthread_attr_setsigmask_internal (pthread_attr_t *attr, - const sigset_t *sigmask); -libc_hidden_proto (__pthread_attr_setsigmask_internal) - -extern __typeof (pthread_attr_getsigmask_np) __pthread_attr_getsigmask_np; -libc_hidden_proto (__pthread_attr_getsigmask_np) - -/* Special versions which use non-exported functions. */ -extern void __pthread_cleanup_push (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg); -libc_hidden_proto (__pthread_cleanup_push) - -/* 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); -libc_hidden_proto (__pthread_cleanup_pop) -# undef pthread_cleanup_pop -# define pthread_cleanup_pop(execute) \ - __pthread_cleanup_pop (&_buffer, (execute)); } - -#if defined __EXCEPTIONS && !defined __cplusplus -/* Structure to hold the cleanup handler information. */ -struct __pthread_cleanup_combined_frame -{ - void (*__cancel_routine) (void *); - void *__cancel_arg; - int __do_it; - struct _pthread_cleanup_buffer __buffer; -}; - -/* Special cleanup macros which register cleanup both using - __pthread_cleanup_{push,pop} and using cleanup attribute. This is needed - for pthread_once, so that it supports both throwing exceptions from the - pthread_once callback (only cleanup attribute works there) and cancellation - of the thread running the callback if the callback or some routines it - calls don't have unwind information. */ - -static __always_inline void -__pthread_cleanup_combined_routine (struct __pthread_cleanup_combined_frame - *__frame) -{ - if (__frame->__do_it) - { - __frame->__cancel_routine (__frame->__cancel_arg); - __frame->__do_it = 0; - __pthread_cleanup_pop (&__frame->__buffer, 0); - } -} - -static inline void -__pthread_cleanup_combined_routine_voidptr (void *__arg) -{ - struct __pthread_cleanup_combined_frame *__frame - = (struct __pthread_cleanup_combined_frame *) __arg; - if (__frame->__do_it) - { - __frame->__cancel_routine (__frame->__cancel_arg); - __frame->__do_it = 0; - } -} - -# define pthread_cleanup_combined_push(routine, arg) \ - do { \ - void (*__cancel_routine) (void *) = (routine); \ - struct __pthread_cleanup_combined_frame __clframe \ - __attribute__ ((__cleanup__ (__pthread_cleanup_combined_routine))) \ - = { .__cancel_routine = __cancel_routine, .__cancel_arg = (arg), \ - .__do_it = 1 }; \ - __pthread_cleanup_push (&__clframe.__buffer, \ - __pthread_cleanup_combined_routine_voidptr, \ - &__clframe); - -# define pthread_cleanup_combined_pop(execute) \ - __pthread_cleanup_pop (&__clframe.__buffer, 0); \ - __clframe.__do_it = 0; \ - if (execute) \ - __cancel_routine (__clframe.__cancel_arg); \ - } while (0) - -#endif /* __EXCEPTIONS && !defined __cplusplus */ - -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); -libc_hidden_proto (__nptl_deallocate_tsd) - -void __nptl_setxid_sighandler (int sig, siginfo_t *si, void *ctx); -libc_hidden_proto (__nptl_setxid_sighandler) -extern int __nptl_setxid (struct xid_command *cmdp) attribute_hidden; - -extern void __wait_lookup_done (void) attribute_hidden; - -/* Allocates the extension space for ATTR. Returns an error code on - memory allocation failure, zero on success. If ATTR already has an - extension space, this function does nothing. */ -int __pthread_attr_extension (struct pthread_attr *attr) attribute_hidden - __attribute_warn_unused_result__; - -#ifdef SHARED -# define PTHREAD_STATIC_FN_REQUIRE(name) -#else -# define PTHREAD_STATIC_FN_REQUIRE(name) __asm (".globl " #name); -#endif - -/* Make a deep copy of the attribute *SOURCE in *TARGET. *TARGET is - not assumed to have been initialized. Returns 0 on success, or a - positive error code otherwise. */ -int __pthread_attr_copy (pthread_attr_t *target, const pthread_attr_t *source); -libc_hidden_proto (__pthread_attr_copy) - -/* 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; -} - -#define ASSERT_TYPE_SIZE(type, size) \ - _Static_assert (sizeof (type) == size, \ - "sizeof (" #type ") != " #size) - -#define ASSERT_PTHREAD_INTERNAL_SIZE(type, internal) \ - _Static_assert (sizeof ((type) { { 0 } }).__size >= sizeof (internal),\ - "sizeof (" #type ".__size) < sizeof (" #internal ")") - -#define ASSERT_PTHREAD_STRING(x) __STRING (x) -#define ASSERT_PTHREAD_INTERNAL_OFFSET(type, member, offset) \ - _Static_assert (offsetof (type, member) == offset, \ - "offset of " #member " field of " #type " != " \ - ASSERT_PTHREAD_STRING (offset)) -#define ASSERT_PTHREAD_INTERNAL_MEMBER_SIZE(type, member, mtype) \ - _Static_assert (sizeof (((type) { 0 }).member) != 8, \ - "sizeof (" #type "." #member ") != sizeof (" #mtype "))") - -#endif /* pthreadP.h */ |