gvisor/pkg/sentry/fs/ext/directory.go

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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 ext
// directory represents a directory inode. It holds the childList in memory.
type directory struct {
inode inode
// childList is a list containing (1) child Dentries and (2) fake Dentries
// (with inode == nil) that represent the iteration position of
// directoryFDs. childList is used to support directoryFD.IterDirents()
// efficiently. childList is immutable.
childList dentryList
// TODO(b/134676337): Add directory navigators.
}
// newDirectroy is the directory constructor.
func newDirectroy(inode inode) *directory {
// TODO(b/134676337): initialize childList.
file := &directory{inode: inode}
file.inode.impl = file
return file
}