/
rekey_file.go
34 lines (30 loc) · 1002 Bytes
/
rekey_file.go
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// Copyright 2016 Keybase Inc. All rights reserved.
// Use of this source code is governed by a BSD
// license that can be found in the LICENSE file.
package libdokan
import (
"github.com/keybase/client/go/kbfs/dokan"
"github.com/keybase/client/go/kbfs/libkbfs"
"golang.org/x/net/context"
)
// RekeyFile represents a write-only file when any write of at least
// one byte triggers a rekey of the folder.
type RekeyFile struct {
folder *Folder
specialWriteFile
}
// WriteFile implements writes for dokan.
func (f *RekeyFile) WriteFile(ctx context.Context, fi *dokan.FileInfo, bs []byte, offset int64) (n int, err error) {
f.folder.fs.logEnter(ctx, "RekeyFile Write")
defer func() { f.folder.reportErr(ctx, libkbfs.WriteMode, err) }()
if len(bs) == 0 {
return 0, nil
}
_, err = libkbfs.RequestRekeyAndWaitForOneFinishEvent(ctx,
f.folder.fs.config.KBFSOps(), f.folder.getFolderBranch().Tlf)
if err != nil {
return 0, err
}
f.folder.fs.NotificationGroupWait()
return len(bs), nil
}