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nptl/pthread_key_delete.c
51 строка
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Copyright (C) 2002-2026 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/>. */ #include <errno.h> #include "pthreadP.h" #include <atomic.h> #include <shlib-compat.h> int ___pthread_key_delete (pthread_key_t key) { int result = EINVAL; if (__glibc_likely (key < PTHREAD_KEYS_MAX)) { unsigned int seq = __pthread_keys[key].seq; if (__builtin_expect (! KEY_UNUSED (seq), 1) && ! atomic_compare_and_exchange_bool_acq (&__pthread_keys[key].seq, seq + 1, seq)) /* We deleted a valid key. */ result = 0; } return result; } versioned_symbol (libc, ___pthread_key_delete, pthread_key_delete, GLIBC_2_34); libc_hidden_ver (___pthread_key_delete, __pthread_key_delete) #ifndef SHARED strong_alias (___pthread_key_delete, __pthread_key_delete) #endif #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34) compat_symbol (libpthread, ___pthread_key_delete, pthread_key_delete, GLIBC_2_0); #endif