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04277e02d7
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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Copyright (C) 2007-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _SYS_EVENTFD_H
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#define _SYS_EVENTFD_H 1
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#include <stdint.h>
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/* Get the platform-dependent flags. */
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#include <bits/eventfd.h>
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/* Type for event counter. */
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typedef uint64_t eventfd_t;
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__BEGIN_DECLS
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/* Return file descriptor for generic event channel. Set initial
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value to COUNT. */
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extern int eventfd (unsigned int __count, int __flags) __THROW;
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/* Read event counter and possibly wait for events. */
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extern int eventfd_read (int __fd, eventfd_t *__value);
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/* Increment event counter. */
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extern int eventfd_write (int __fd, eventfd_t __value);
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__END_DECLS
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#endif /* sys/eventfd.h */
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