projects / thirdparty / man-pages.git / blame
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|---|---|---|
| 7af7e2ae AC |
1 | .\" Copyright (c) 2022 by Alejandro Colomar <colomar.6.4.3@gmail.com> |
| 2 | .\" | |
| 3 | .\" SPDX-License-Identifier: Linux-man-pages-copyleft | |
| 4 | .\" | |
| 5 | .\" | |
| 45186a5d | 6 | .TH EPOLL_EVENT 3type 2022-06-19 "Linux man-pages (unreleased)" |
| 7af7e2ae | 7 | .SH NAME |
| 0a5f43bb | 8 | epoll_event, epoll_data, epoll_data_t |
| 7af7e2ae AC |
9 | \- epoll event |
| 10 | .SH LIBRARY | |
| 11 | Standard C library | |
| 12 | .RI ( libc ) | |
| 13 | .SH SYNOPSIS | |
| 14 | .nf | |
| 15 | .B #include <sys/epoll.h> | |
| 16 | .PP | |
| 17 | .B struct epoll_event { | |
| 18 | .BR " uint32_t events;" " /* Epoll events */" | |
| 19 | .BR " epoll_data_t data;" " /* User data variable */" | |
| 20 | .B }; | |
| 21 | .PP | |
| 22 | .B union epoll_data { | |
| 23 | .B " void *ptr;" | |
| 24 | .B " int fd;" | |
| 25 | .B " uint32_t u32;" | |
| 26 | .B " uint64_t u64;" | |
| 27 | .B }; | |
| 28 | .PP | |
| 29 | .B "typedef union epoll_data epoll_data_t;" | |
| 30 | .fi | |
| 31 | .SH DESCRIPTION | |
| 32 | The | |
| 33 | .I epoll_event | |
| 34 | structure specifies data that the kernel should save and | |
| 35 | return when the corresponding file descriptor becomes ready. | |
| 3113c7f3 | 36 | .SH STANDARDS |
| 7af7e2ae AC |
37 | This type is Linux-specific. |
| 38 | .SH NOTES | |
| 39 | .SS C library/kernel differences | |
| 40 | The Linux kernel headers also provide this type, | |
| 41 | with a slightly different definition: | |
| 42 | .PP | |
| 43 | .in +4n | |
| 44 | .EX | |
| 45 | #include <linux/eventpoll.h> | |
| 46 | ||
| 47 | struct epoll_event { | |
| 48 | __poll_t events; | |
| 49 | __u64 data; | |
| 50 | }; | |
| 51 | .EE | |
| 52 | .in | |
| 53 | .SH SEE ALSO | |
| 54 | .BR epoll_wait (2), | |
| 55 | .BR epoll_ctl (7) |