github.com/MerlinKodo/gvisor@v0.0.0-20231110090155-957f62ecf90e/pkg/abi/linux/epoll_amd64.go (about)

     1  // Copyright 2019 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  //go:build amd64
    16  // +build amd64
    17  
    18  package linux
    19  
    20  // EpollEvent is equivalent to struct epoll_event from epoll(2).
    21  //
    22  // +marshal slice:EpollEventSlice
    23  type EpollEvent struct {
    24  	Events uint32
    25  	// Linux makes struct epoll_event::data a __u64. We represent it as
    26  	// [2]int32 because, on amd64, Linux also makes struct epoll_event
    27  	// __attribute__((packed)), such that there is no padding between Events
    28  	// and Data.
    29  	Data [2]int32
    30  }