syncthing/lib/fs/basicfs_copy_range.go

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// Copyright (C) 2020 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package fs
import (
"syscall"
)
type copyRangeImplementationBasicFile func(src, dst basicFile, srcOffset, dstOffset, size int64) error
func copyRangeImplementationForBasicFile(impl copyRangeImplementationBasicFile) copyRangeImplementation {
return func(src, dst File, srcOffset, dstOffset, size int64) error {
srcFile, srcOk := src.(basicFile)
dstFile, dstOk := dst.(basicFile)
if !srcOk || !dstOk {
return syscall.ENOTSUP
}
return impl(srcFile, dstFile, srcOffset, dstOffset, size)
}
}