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+/* Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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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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+
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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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+
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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, write to the Free
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+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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+ 02111-1307 USA. */
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+
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+#ifndef _SYS_EVENTFD_H
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+#define _SYS_EVENTFD_H 1
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+
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+#include <stdint.h>
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+
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+
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+/* Type for event counter. */
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+typedef uint64_t eventfd_t;
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+
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+/* Flags for signalfd. */
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+enum
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+ {
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+ EFD_SEMAPHORE = 1,
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+#define EFD_SEMAPHORE EFD_SEMAPHORE
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+ EFD_CLOEXEC = 02000000,
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+#define EFD_CLOEXEC EFD_CLOEXEC
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+ EFD_NONBLOCK = 04000
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+#define EFD_NONBLOCK EFD_NONBLOCK
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+ };
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+
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+
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+__BEGIN_DECLS
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+
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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 (int __count, int __flags) __THROW;
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+
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+__END_DECLS
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+
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+#endif /* sys/eventfd.h */
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