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explicit_dir.go
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/
explicit_dir.go
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// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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 inode
import (
"time"
"github.com/jacobsa/fuse/fuseops"
"github.com/jacobsa/gcloud/gcs"
"github.com/jacobsa/timeutil"
)
// An inode representing a directory backed by an object in GCS with a specific
// generation.
type ExplicitDirInode interface {
DirInode
SourceGeneration() Generation
}
// Create an explicit dir inode backed by the supplied object. See notes on
// NewDirInode for more.
func NewExplicitDirInode(
id fuseops.InodeID,
o *gcs.Object,
attrs fuseops.InodeAttributes,
implicitDirs bool,
typeCacheTTL time.Duration,
bucket gcs.Bucket,
mtimeClock timeutil.Clock,
cacheClock timeutil.Clock) (d ExplicitDirInode) {
wrapped := NewDirInode(
id,
o.Name,
attrs,
implicitDirs,
typeCacheTTL,
bucket,
mtimeClock,
cacheClock)
d = &explicitDirInode{
dirInode: wrapped.(*dirInode),
generation: Generation{
Object: o.Generation,
Metadata: o.MetaGeneration,
},
}
return
}
type explicitDirInode struct {
*dirInode
generation Generation
}
func (d *explicitDirInode) SourceGeneration() (gen Generation) {
gen = d.generation
return
}