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NAME
epoll_create - open an epoll file descriptor
SYNOPSIS
#include <sys/epoll.h>
int epoll_create(int size);
DESCRIPTION
Open an epoll file descriptor by requesting the kernel to allocate an
event backing store dimensioned for size descriptors. The size is not
the maximum size of the backing store but just a hint to the kernel
about how to dimension internal structures. The returned file
descriptor will be used for all the subsequent calls to the epoll
interface. The file descriptor returned by epoll_create() must be
closed by using close(2).
RETURN VALUE
When successful, epoll_create() returns a non-negative integer
identifying the descriptor. When an error occurs, epoll_create()
returns -1 and errno is set appropriately.
ERRORS
EINVAL size is not positive.
ENFILE The system limit on the total number of open files has been
reached.
ENOMEM There was insufficient memory to create the kernel object.
CONFORMING TO
epoll_create() is Linux-specific, and was introduced in kernel 2.5.44.
SEE ALSO
close(2), epoll_ctl(2), epoll_wait(2), epoll(7)
COLOPHON
This page is part of release 2.77 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.