/usr/arm-linux-gnueabihf/include/linux/eventpoll.h is in linux-libc-dev-armhf-cross 4.15.0-18.19cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* include/linux/eventpoll.h ( Efficient event polling implementation )
* Copyright (C) 2001,...,2006 Davide Libenzi
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Davide Libenzi <davidel@xmailserver.org>
*
*/
#ifndef _LINUX_EVENTPOLL_H
#define _LINUX_EVENTPOLL_H
/* For O_CLOEXEC */
#include <linux/fcntl.h>
#include <linux/types.h>
/* Flags for epoll_create1. */
#define EPOLL_CLOEXEC O_CLOEXEC
/* Valid opcodes to issue to sys_epoll_ctl() */
#define EPOLL_CTL_ADD 1
#define EPOLL_CTL_DEL 2
#define EPOLL_CTL_MOD 3
/* Epoll event masks */
#define EPOLLIN 0x00000001
#define EPOLLPRI 0x00000002
#define EPOLLOUT 0x00000004
#define EPOLLERR 0x00000008
#define EPOLLHUP 0x00000010
#define EPOLLRDNORM 0x00000040
#define EPOLLRDBAND 0x00000080
#define EPOLLWRNORM 0x00000100
#define EPOLLWRBAND 0x00000200
#define EPOLLMSG 0x00000400
#define EPOLLRDHUP 0x00002000
/* Set exclusive wakeup mode for the target file descriptor */
#define EPOLLEXCLUSIVE (1U << 28)
/*
* Request the handling of system wakeup events so as to prevent system suspends
* from happening while those events are being processed.
*
* Assuming neither EPOLLET nor EPOLLONESHOT is set, system suspends will not be
* re-allowed until epoll_wait is called again after consuming the wakeup
* event(s).
*
* Requires CAP_BLOCK_SUSPEND
*/
#define EPOLLWAKEUP (1U << 29)
/* Set the One Shot behaviour for the target file descriptor */
#define EPOLLONESHOT (1U << 30)
/* Set the Edge Triggered behaviour for the target file descriptor */
#define EPOLLET (1U << 31)
/*
* On x86-64 make the 64bit structure have the same alignment as the
* 32bit structure. This makes 32bit emulation easier.
*
* UML/x86_64 needs the same packing as x86_64
*/
#ifdef __x86_64__
#define EPOLL_PACKED __attribute__((packed))
#else
#define EPOLL_PACKED
#endif
struct epoll_event {
__u32 events;
__u64 data;
} EPOLL_PACKED;
#ifdef CONFIG_PM_SLEEP
static __inline__ void ep_take_care_of_epollwakeup(struct epoll_event *epev)
{
if ((epev->events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
epev->events &= ~EPOLLWAKEUP;
}
#else
static __inline__ void ep_take_care_of_epollwakeup(struct epoll_event *epev)
{
epev->events &= ~EPOLLWAKEUP;
}
#endif
#endif /* _LINUX_EVENTPOLL_H */
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