| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Linux/include/uapi/linux/ (Open Source Betriebssystem Version 6.17.9©) Datei vom 24.10.2025 mit Größe 2 kB |
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Quelle eventpoll.h Sprache: C |
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/* 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 _UAPI_LINUX_EVENTPOLL_H #define _UAPI_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 (__force __poll_t)0x00000001 #define EPOLLPRI (__force __poll_t)0x00000002 #define EPOLLOUT (__force __poll_t)0x00000004 #define EPOLLERR (__force __poll_t)0x00000008 #define EPOLLHUP (__force __poll_t)0x00000010 #define EPOLLNVAL (__force __poll_t)0x00000020 #define EPOLLRDNORM (__force __poll_t)0x00000040 #define EPOLLRDBAND (__force __poll_t)0x00000080 #define EPOLLWRNORM (__force __poll_t)0x00000100 #define EPOLLWRBAND (__force __poll_t)0x00000200 #define EPOLLMSG (__force __poll_t)0x00000400 #define EPOLLRDHUP (__force __poll_t)0x00002000 /* * Internal flag - wakeup generated by io_uring, used to detect recursion back * into the io_uring poll handler. */ #define EPOLL_URING_WAKE ((__force __poll_t)(1U << 27)) /* Set exclusive wakeup mode for the target file descriptor */ #define EPOLLEXCLUSIVE ((__force __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 ((__force __poll_t)(1U << 29)) /* Set the One Shot behaviour for the target file descriptor */ #define EPOLLONESHOT ((__force __poll_t)(1U << 30)) /* Set the Edge Triggered behaviour for the target file descriptor */ #define EPOLLET ((__force __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; struct epoll_params { __u32 busy_poll_usecs; __u16 busy_poll_budget; __u8 prefer_busy_poll; /* pad the struct to a multiple of 64bits */ __u8 __pad; }; #define EPOLL_IOC_TYPE 0x8A #define EPIOCSPARAMS _IOW(EPOLL_IOC_TYPE, 0x01, struct epoll_params) #define EPIOCGPARAMS _IOR(EPOLL_IOC_TYPE, 0x02, struct epoll_params) #endif /* _UAPI_LINUX_EVENTPOLL_H */ ¤ Dauer der Verarbeitung: 0.14 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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2026-03-28