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Editing: pthreadtypes.h
/* Declaration of common pthread types for all architectures. Copyright (C) 2017-2021 Free Software Foundation, Inc. This file is part of the GNU C Library. 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 _BITS_PTHREADTYPES_COMMON_H # define _BITS_PTHREADTYPES_COMMON_H 1 /* For internal mutex and condition variable definitions. */ #include <bits/thread-shared-types.h> /* Thread identifiers. The structure of the attribute type is not exposed on purpose. */ typedef unsigned long int pthread_t; /* Data structures for mutex handling. The structure of the attribute type is not exposed on purpose. */ typedef union { char __size[__SIZEOF_PTHREAD_MUTEXATTR_T]; int __align; } pthread_mutexattr_t; /* Data structure for condition variable handling. The structure of the attribute type is not exposed on purpose. */ typedef union { char __size[__SIZEOF_PTHREAD_CONDATTR_T]; int __align; } pthread_condattr_t; /* Keys for thread-specific data */ typedef unsigned int pthread_key_t; /* Once-only execution */ typedef int __ONCE_ALIGNMENT pthread_once_t; union pthread_attr_t { char __size[__SIZEOF_PTHREAD_ATTR_T]; long int __align; }; #ifndef __have_pthread_attr_t typedef union pthread_attr_t pthread_attr_t; # define __have_pthread_attr_t 1 #endif typedef union { struct __pthread_mutex_s __data; char __size[__SIZEOF_PTHREAD_MUTEX_T]; long int __align; } pthread_mutex_t; typedef union { struct __pthread_cond_s __data; char __size[__SIZEOF_PTHREAD_COND_T]; __extension__ long long int __align; } pthread_cond_t; #if defined __USE_UNIX98 || defined __USE_XOPEN2K /* Data structure for reader-writer lock variable handling. The structure of the attribute type is deliberately not exposed. */ typedef union { struct __pthread_rwlock_arch_t __data; char __size[__SIZEOF_PTHREAD_RWLOCK_T]; long int __align; } pthread_rwlock_t; typedef union { char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T]; long int __align; } pthread_rwlockattr_t; #endif #ifdef __USE_XOPEN2K /* POSIX spinlock data type. */ typedef volatile int pthread_spinlock_t; /* POSIX barriers data type. The structure of the type is deliberately not exposed. */ typedef union { char __size[__SIZEOF_PTHREAD_BARRIER_T]; long int __align; } pthread_barrier_t; typedef union { char __size[__SIZEOF_PTHREAD_BARRIERATTR_T]; int __align; } pthread_barrierattr_t; #endif #endif
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