2007-05-10 22:23:19 -07:00
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/*
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* include/linux/eventfd.h
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*
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* Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
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*
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*/
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#ifndef _LINUX_EVENTFD_H
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#define _LINUX_EVENTFD_H
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#ifdef CONFIG_EVENTFD
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2008-07-23 21:29:38 -07:00
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/* For O_CLOEXEC and O_NONBLOCK */
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2008-07-23 21:29:25 -07:00
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#include <linux/fcntl.h>
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/* Flags for eventfd2. */
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#define EFD_CLOEXEC O_CLOEXEC
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2008-07-23 21:29:38 -07:00
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#define EFD_NONBLOCK O_NONBLOCK
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2008-07-23 21:29:25 -07:00
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2007-05-10 22:23:19 -07:00
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struct file *eventfd_fget(int fd);
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int eventfd_signal(struct file *file, int n);
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#else /* CONFIG_EVENTFD */
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#define eventfd_fget(fd) ERR_PTR(-ENOSYS)
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2007-06-27 14:09:48 -07:00
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static inline int eventfd_signal(struct file *file, int n)
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{ return 0; }
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2007-05-10 22:23:19 -07:00
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#endif /* CONFIG_EVENTFD */
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#endif /* _LINUX_EVENTFD_H */
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