gvisor-lx/pkg/abi/linux/aio.go
Leadaxe 2c4ae3b0a4 snapshot: sagernet/gvisor v0.0.0-20250811.0-sing-box-mod.1
Содержимое пина, зафиксированного в go.mod sing-box-lx, одним коммитом
без истории. Полная история SagerNet/gvisor — 1.45 ГБ и клонируется в
каждой CI-джобе; наша дельта — одна вставка в одну функцию, история для
неё не нужна.

Module path github.com/sagernet/gvisor сохранён намеренно: на него
опирается replace-директива суперпроекта.

Патч поверх — отдельным коммитом, чтобы дельта читалась одним git show
и переносилась на новый пин копированием.

SPECS/TASKS/048-GVISOR_HANDSHAKE_NIL_CRASH
2026-08-04 15:50:08 +03:00

96 lines
2.1 KiB
Go

// Copyright 2018 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 "encoding/binary"
// AIORing is struct aio_ring, from fs/aio.c, without the trailing
// variable-length array.
type AIORing struct {
ID uint32
Nr uint32
Head uint32
Tail uint32
Magic uint32
CompatFeatures uint32
IncompatFeatures uint32
HeaderLength uint32
}
// AIORingSize is sizeof(struct aio_ring).
const AIORingSize = 32
// AIO_RING_MAGIC is fs/aio.c:AIO_RING_MAGIC, the expected value of
// AIORing.Magic.
const AIO_RING_MAGIC = 0xa10a10a1
// I/O commands.
const (
IOCB_CMD_PREAD = 0
IOCB_CMD_PWRITE = 1
IOCB_CMD_FSYNC = 2
IOCB_CMD_FDSYNC = 3
// 4 was the experimental IOCB_CMD_PREADX.
IOCB_CMD_POLL = 5
IOCB_CMD_NOOP = 6
IOCB_CMD_PREADV = 7
IOCB_CMD_PWRITEV = 8
)
// I/O flags.
const (
IOCB_FLAG_RESFD = 1
IOCB_FLAG_IOPRIO = 2
)
// IOCallback describes an I/O request.
//
// The priority field is currently ignored in the implementation below. Also
// note that the IOCB_FLAG_RESFD feature is not supported.
//
// +marshal
type IOCallback struct {
Data uint64
Key uint32
_ uint32
OpCode uint16
ReqPrio int16
FD int32
Buf uint64
Bytes uint64
Offset int64
Reserved2 uint64
Flags uint32
// eventfd to signal if IOCB_FLAG_RESFD is set in flags.
ResFD int32
}
// IOEvent describes an I/O result.
//
// +marshal
// +stateify savable
type IOEvent struct {
Data uint64
Obj uint64
Result int64
Result2 int64
}
// IOEventSize is the size of an ioEvent encoded.
var IOEventSize = binary.Size(IOEvent{})