Originální popis anglicky:
epoll_create - open an epoll file descriptor
Návod, kniha: Linux Programmer's Manual
#include <sys/epoll.h>
int epoll_create(int size
)
Open an
epoll file descriptor by requesting the kernel 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(2) must be closed by using
close(2).
When successful,
epoll_create(2) returns a positive integer identifying
the descriptor. When an error occurs,
epoll_create(2) returns -1 and
errno is set appropriately.
- ENFILE
- The system limit on the total number of open files has been
reached.
- ENOMEM
- There was insufficient memory to create the kernel
object.
epoll_create(2) is a new API introduced in Linux kernel 2.5.44. The
interface should be finalized by Linux kernel 2.5.66.
close(2),
epoll_ctl(2),
epoll_wait(2),
epoll(4)
