epoll_event(3type) | epoll_event(3type) |
NAME¶
epoll_event, epoll_data, epoll_data_t - epoll event
LIBRARY¶
Standard C library (libc)
SYNOPSIS¶
#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;
DESCRIPTION¶
The epoll_event structure specifies data that the kernel should save and return when the corresponding file descriptor becomes ready.
STANDARDS¶
This type is Linux-specific.
NOTES¶
C library/kernel differences¶
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; };
SEE ALSO¶
epoll_wait(2), epoll_ctl(7)
2022-10-30 | Linux man-pages 6.03 |