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sysdeps/generic/atomic-machine.h
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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) 2003-2026 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/>. */ #ifndef _ATOMIC_MACHINE_H #define _ATOMIC_MACHINE_H 1 /* Some macros can be overridden if the architecture requires some specific atomic operations or provides extra optimizations. * atomic_max (mem, value): atomically set the maximum value of *mem and value to *mem. Used on malloc statistics collection. * atomic_full_barrier: defaults to __atomic_thread_fence (__ATOMIC_SEQ_CST) * atomic_read_barrier: defaults to __atomic_thread_fence (__ATOMIC_ACQUIRE) * atomic_write_barrier: defaults to __atomic_thread_fence (__ATOMIC_RELEASE) * atomic_spin_nop: arch-specific instruction used on pthread spin lock and adaptive mutexes to optimize spin-wait loops. */ #endif /* atomic-machine.h */