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// 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
import (
"gvisor.dev/gvisor/pkg/binary"
)
// 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 (
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
)
// Operation flags.
const (
EPOLL_CLOEXEC = 0x80000
EPOLL_NONBLOCK = 0x800
)
// Control operations.
const (
EPOLL_CTL_ADD = 0x1
EPOLL_CTL_DEL = 0x2
EPOLL_CTL_MOD = 0x3
)
// SizeOfEpollEvent is the size of EpollEvent struct.
var SizeOfEpollEvent = int(binary.Size(EpollEvent{}))
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