|
Packit |
6c4009 |
/* Copyright (C) 2002-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#ifndef _SYS_EPOLL_H
|
|
Packit |
6c4009 |
#define _SYS_EPOLL_H 1
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <stdint.h>
|
|
Packit |
6c4009 |
#include <sys/types.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <bits/types/sigset_t.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Get the platform-dependent flags. */
|
|
Packit |
6c4009 |
#include <bits/epoll.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#ifndef __EPOLL_PACKED
|
|
Packit |
6c4009 |
# define __EPOLL_PACKED
|
|
Packit |
6c4009 |
#endif
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
enum EPOLL_EVENTS
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
EPOLLIN = 0x001,
|
|
Packit |
6c4009 |
#define EPOLLIN EPOLLIN
|
|
Packit |
6c4009 |
EPOLLPRI = 0x002,
|
|
Packit |
6c4009 |
#define EPOLLPRI EPOLLPRI
|
|
Packit |
6c4009 |
EPOLLOUT = 0x004,
|
|
Packit |
6c4009 |
#define EPOLLOUT EPOLLOUT
|
|
Packit |
6c4009 |
EPOLLRDNORM = 0x040,
|
|
Packit |
6c4009 |
#define EPOLLRDNORM EPOLLRDNORM
|
|
Packit |
6c4009 |
EPOLLRDBAND = 0x080,
|
|
Packit |
6c4009 |
#define EPOLLRDBAND EPOLLRDBAND
|
|
Packit |
6c4009 |
EPOLLWRNORM = 0x100,
|
|
Packit |
6c4009 |
#define EPOLLWRNORM EPOLLWRNORM
|
|
Packit |
6c4009 |
EPOLLWRBAND = 0x200,
|
|
Packit |
6c4009 |
#define EPOLLWRBAND EPOLLWRBAND
|
|
Packit |
6c4009 |
EPOLLMSG = 0x400,
|
|
Packit |
6c4009 |
#define EPOLLMSG EPOLLMSG
|
|
Packit |
6c4009 |
EPOLLERR = 0x008,
|
|
Packit |
6c4009 |
#define EPOLLERR EPOLLERR
|
|
Packit |
6c4009 |
EPOLLHUP = 0x010,
|
|
Packit |
6c4009 |
#define EPOLLHUP EPOLLHUP
|
|
Packit |
6c4009 |
EPOLLRDHUP = 0x2000,
|
|
Packit |
6c4009 |
#define EPOLLRDHUP EPOLLRDHUP
|
|
Packit |
6c4009 |
EPOLLEXCLUSIVE = 1u << 28,
|
|
Packit |
6c4009 |
#define EPOLLEXCLUSIVE EPOLLEXCLUSIVE
|
|
Packit |
6c4009 |
EPOLLWAKEUP = 1u << 29,
|
|
Packit |
6c4009 |
#define EPOLLWAKEUP EPOLLWAKEUP
|
|
Packit |
6c4009 |
EPOLLONESHOT = 1u << 30,
|
|
Packit |
6c4009 |
#define EPOLLONESHOT EPOLLONESHOT
|
|
Packit |
6c4009 |
EPOLLET = 1u << 31
|
|
Packit |
6c4009 |
#define EPOLLET EPOLLET
|
|
Packit |
6c4009 |
};
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Valid opcodes ( "op" parameter ) to issue to epoll_ctl(). */
|
|
Packit |
6c4009 |
#define EPOLL_CTL_ADD 1 /* Add a file descriptor to the interface. */
|
|
Packit |
6c4009 |
#define EPOLL_CTL_DEL 2 /* Remove a file descriptor from the interface. */
|
|
Packit |
6c4009 |
#define EPOLL_CTL_MOD 3 /* Change file descriptor epoll_event structure. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
typedef union epoll_data
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
void *ptr;
|
|
Packit |
6c4009 |
int fd;
|
|
Packit |
6c4009 |
uint32_t u32;
|
|
Packit |
6c4009 |
uint64_t u64;
|
|
Packit |
6c4009 |
} epoll_data_t;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
struct epoll_event
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
uint32_t events; /* Epoll events */
|
|
Packit |
6c4009 |
epoll_data_t data; /* User data variable */
|
|
Packit |
6c4009 |
} __EPOLL_PACKED;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
__BEGIN_DECLS
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Creates an epoll instance. Returns an fd for the new instance.
|
|
Packit |
6c4009 |
The "size" parameter is a hint specifying the number of file
|
|
Packit |
6c4009 |
descriptors to be associated with the new instance. The fd
|
|
Packit |
6c4009 |
returned by epoll_create() should be closed with close(). */
|
|
Packit |
6c4009 |
extern int epoll_create (int __size) __THROW;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Same as epoll_create but with an FLAGS parameter. The unused SIZE
|
|
Packit |
6c4009 |
parameter has been dropped. */
|
|
Packit |
6c4009 |
extern int epoll_create1 (int __flags) __THROW;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Manipulate an epoll instance "epfd". Returns 0 in case of success,
|
|
Packit |
6c4009 |
-1 in case of error ( the "errno" variable will contain the
|
|
Packit |
6c4009 |
specific error code ) The "op" parameter is one of the EPOLL_CTL_*
|
|
Packit |
6c4009 |
constants defined above. The "fd" parameter is the target of the
|
|
Packit |
6c4009 |
operation. The "event" parameter describes which events the caller
|
|
Packit |
6c4009 |
is interested in and any associated user data. */
|
|
Packit |
6c4009 |
extern int epoll_ctl (int __epfd, int __op, int __fd,
|
|
Packit |
6c4009 |
struct epoll_event *__event) __THROW;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Wait for events on an epoll instance "epfd". Returns the number of
|
|
Packit |
6c4009 |
triggered events returned in "events" buffer. Or -1 in case of
|
|
Packit |
6c4009 |
error with the "errno" variable set to the specific error code. The
|
|
Packit |
6c4009 |
"events" parameter is a buffer that will contain triggered
|
|
Packit |
6c4009 |
events. The "maxevents" is the maximum number of events to be
|
|
Packit |
6c4009 |
returned ( usually size of "events" ). The "timeout" parameter
|
|
Packit |
6c4009 |
specifies the maximum wait time in milliseconds (-1 == infinite).
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
This function is a cancellation point and therefore not marked with
|
|
Packit |
6c4009 |
__THROW. */
|
|
Packit |
6c4009 |
extern int epoll_wait (int __epfd, struct epoll_event *__events,
|
|
Packit |
6c4009 |
int __maxevents, int __timeout);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Same as epoll_wait, but the thread's signal mask is temporarily
|
|
Packit |
6c4009 |
and atomically replaced with the one provided as parameter.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
This function is a cancellation point and therefore not marked with
|
|
Packit |
6c4009 |
__THROW. */
|
|
Packit |
6c4009 |
extern int epoll_pwait (int __epfd, struct epoll_event *__events,
|
|
Packit |
6c4009 |
int __maxevents, int __timeout,
|
|
Packit |
6c4009 |
const __sigset_t *__ss);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
__END_DECLS
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#endif /* sys/epoll.h */
|