2019-07-09 23:16:46 +00:00
|
|
|
// Copyright 2019 The gVisor Authors.
|
|
|
|
//
|
|
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
// you may not use this file except in compliance with the License.
|
|
|
|
// You may obtain a copy of the License at
|
|
|
|
//
|
|
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
//
|
|
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
// See the License for the specific language governing permissions and
|
|
|
|
// limitations under the License.
|
|
|
|
|
|
|
|
package linux
|
|
|
|
|
2020-02-20 19:29:59 +00:00
|
|
|
import (
|
|
|
|
"gvisor.dev/gvisor/pkg/binary"
|
|
|
|
)
|
|
|
|
|
2019-07-09 23:16:46 +00:00
|
|
|
// Event masks.
|
|
|
|
const (
|
|
|
|
EPOLLIN = 0x1
|
|
|
|
EPOLLPRI = 0x2
|
|
|
|
EPOLLOUT = 0x4
|
|
|
|
EPOLLERR = 0x8
|
|
|
|
EPOLLHUP = 0x10
|
|
|
|
EPOLLRDNORM = 0x40
|
|
|
|
EPOLLRDBAND = 0x80
|
|
|
|
EPOLLWRNORM = 0x100
|
|
|
|
EPOLLWRBAND = 0x200
|
|
|
|
EPOLLMSG = 0x400
|
|
|
|
EPOLLRDHUP = 0x2000
|
|
|
|
)
|
|
|
|
|
|
|
|
// Per-file descriptor flags.
|
|
|
|
const (
|
2020-01-28 21:10:41 +00:00
|
|
|
EPOLLEXCLUSIVE = 1 << 28
|
|
|
|
EPOLLWAKEUP = 1 << 29
|
|
|
|
EPOLLONESHOT = 1 << 30
|
|
|
|
EPOLLET = 1 << 31
|
|
|
|
|
|
|
|
// EP_PRIVATE_BITS is fs/eventpoll.c:EP_PRIVATE_BITS, the set of all bits
|
|
|
|
// in an epoll event mask that correspond to flags rather than I/O events.
|
|
|
|
EP_PRIVATE_BITS = EPOLLEXCLUSIVE | EPOLLWAKEUP | EPOLLONESHOT | EPOLLET
|
2019-07-09 23:16:46 +00:00
|
|
|
)
|
|
|
|
|
|
|
|
// Operation flags.
|
|
|
|
const (
|
|
|
|
EPOLL_CLOEXEC = 0x80000
|
|
|
|
EPOLL_NONBLOCK = 0x800
|
|
|
|
)
|
|
|
|
|
|
|
|
// Control operations.
|
|
|
|
const (
|
|
|
|
EPOLL_CTL_ADD = 0x1
|
|
|
|
EPOLL_CTL_DEL = 0x2
|
|
|
|
EPOLL_CTL_MOD = 0x3
|
|
|
|
)
|
2020-02-20 19:29:59 +00:00
|
|
|
|
|
|
|
// SizeOfEpollEvent is the size of EpollEvent struct.
|
|
|
|
var SizeOfEpollEvent = int(binary.Size(EpollEvent{}))
|