EPOLL_CREATE(2) Linux Programmers Manual EPOLL_CREATE(2)
epoll_create - open an epoll file descriptor
int epoll_create(int size);
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 descrip
tor will be used for all the subsequent calls to the epoll interface.
The file descriptor returned by epoll_create() must be closed by using
When successful, epoll_create() returns a non-negative integer identi
fying the descriptor. When an error occurs, epoll_create() returns -1
and errno is set appropriately.
EINVAL size is not positive.
ENFILE The system limit on the total number of open files has been
ENOMEM There was insufficient memory to create the kernel object.
epoll_create() is Linux-specific, and was introduced in kernel 2.5.44.
Since Linux 2.6.8, the size argument is unused.
close(2), epoll_ctl(2), epoll_wait(2), epoll(7)
This page is part of release 3.05 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/.
Linux 2008-05-29 EPOLL_CREATE(2)