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epoll_event

(3type)

epoll event

Library functionsmanpages-dev 6.9.1-1also documents epoll_data, epoll_data_t
#include <sys/epoll.h> struct epoll_event { uint32_t events; /* Epoll events */ epoll_data_t data; /* User data variable */ }; union epoll_data { void *ptr; int fd; uint32_t u32; uint64_t u64; }; typedef union epoll_data epoll_data_t;

LIBRARY

Standard C library (libc)

DESCRIPTION

The epoll_event structure specifies data that the kernel should save and return when the corresponding file descriptor becomes ready.

VERSIONS

The Linux kernel headers also provide this type, with a slightly different definition:


#include <linux/eventpoll.h>
struct epoll_event {

__poll_t events;
__u64 data; };

STANDARDS

Linux.

See also