X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Flinux%2Feventpoll.h;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Flinux%2Feventpoll.h;h=27fff481d59e0a30f455e2bc50838fd3ac8a4eb2;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git diff --git a/i686-linux-gnu-4.7/usr/include/linux/eventpoll.h b/i686-linux-gnu-4.7/usr/include/linux/eventpoll.h new file mode 100644 index 0000000..27fff48 --- /dev/null +++ b/i686-linux-gnu-4.7/usr/include/linux/eventpoll.h @@ -0,0 +1,94 @@ +/* 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 + * + */ + +#ifndef _LINUX_EVENTPOLL_H +#define _LINUX_EVENTPOLL_H + +/* For O_CLOEXEC */ +#include +#include + +/* 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 (__poll_t)0x00000001 +#define EPOLLPRI (__poll_t)0x00000002 +#define EPOLLOUT (__poll_t)0x00000004 +#define EPOLLERR (__poll_t)0x00000008 +#define EPOLLHUP (__poll_t)0x00000010 +#define EPOLLNVAL (__poll_t)0x00000020 +#define EPOLLRDNORM (__poll_t)0x00000040 +#define EPOLLRDBAND (__poll_t)0x00000080 +#define EPOLLWRNORM (__poll_t)0x00000100 +#define EPOLLWRBAND (__poll_t)0x00000200 +#define EPOLLMSG (__poll_t)0x00000400 +#define EPOLLRDHUP (__poll_t)0x00002000 + +/* Set exclusive wakeup mode for the target file descriptor */ +#define EPOLLEXCLUSIVE ((__poll_t)(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 ((__poll_t)(1U << 29)) + +/* Set the One Shot behaviour for the target file descriptor */ +#define EPOLLONESHOT ((__poll_t)(1U << 30)) + +/* Set the Edge Triggered behaviour for the target file descriptor */ +#define EPOLLET ((__poll_t)(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 { + __poll_t 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 */