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sysdeps/pthread/call_once.c
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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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/* C11 threads call once implementation. Copyright (C) 2018-2026 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 <stdalign.h> #include <shlib-compat.h> #include "thrd_priv.h" #include <c11-thread.h> void __call_once (once_flag *flag, void (*func)(void)) { _Static_assert (sizeof (once_flag) == sizeof (pthread_once_t), "sizeof (once_flag) != sizeof (pthread_once_t)"); _Static_assert (alignof (once_flag) == alignof (pthread_once_t), "alignof (once_flag) != alignof (pthread_once_t)"); __pthread_once ((pthread_once_t *) flag, func); } versioned_symbol (libc, __call_once, call_once, C11_THREADS_IN_LIBC); #if OTHER_SHLIB_COMPAT (libpthread, C11_THREADS_INTRODUCED, C11_THREADS_IN_LIBC) compat_symbol (libpthread, __call_once, call_once, C11_THREADS_INTRODUCED); #endif