Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * include/linux/eventfd.h
3 *
4 * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
5 *
6 */
7
8#ifndef _LINUX_EVENTFD_H
9#define _LINUX_EVENTFD_H
10
11#ifdef CONFIG_EVENTFD
12
13/* For O_CLOEXEC and O_NONBLOCK */
14#include <linux/fcntl.h>
15
16/* Flags for eventfd2. */
17#define EFD_CLOEXEC O_CLOEXEC
18#define EFD_NONBLOCK O_NONBLOCK
19
20struct file *eventfd_fget(int fd);
21int eventfd_signal(struct file *file, int n);
22
23#else /* CONFIG_EVENTFD */
24
25#define eventfd_fget(fd) ERR_PTR(-ENOSYS)
26static inline int eventfd_signal(struct file *file, int n)
27{ return 0; }
28
29#endif /* CONFIG_EVENTFD */
30
31#endif /* _LINUX_EVENTFD_H */
32