github.com/nicocha30/gvisor-ligolo@v0.0.0-20230726075806-989fa2c0a413/pkg/sentry/fsimpl/iouringfs/iouringfs_state.go (about)

     1  // Copyright 2022 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  package iouringfs
    16  
    17  // beforeSave is invoked by stateify.
    18  func (fd *FileDescription) beforeSave() {
    19  	if fd.running.Load() != 0 {
    20  		panic("Task goroutine in fd.ProcessSubmissions during Save! This shouldn't be possible due to Kernel.Pause")
    21  	}
    22  }
    23  
    24  // afterLoad is invoked by stateify.
    25  func (fd *FileDescription) afterLoad() {
    26  	// Remap shared buffers.
    27  	fd.remap = true
    28  	fd.runC = make(chan struct{}, 1)
    29  }