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lib/file: add Implemented constants

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This commit is contained in:
Nick Craig-Wood
2020-05-19 10:15:20 +01:00
parent 919a180ad2
commit 5cb2a2fa3c
3 changed files with 24 additions and 0 deletions
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8
lib/file/preallocate_unix.go
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@ -18,6 +18,10 @@ var (
fallocFlagsIndex int32
)
// PreallocateImplemented is a constant indicating whether the
// implementation of Preallocate actually does anything.
const PreallocateImplemented = true
// PreAllocate the file for performance reasons
func PreAllocate(size int64, out *os.File) error {
if size <= 0 {
@ -45,6 +49,10 @@ again:
return err
}
// SetSparseImplemented is a constant indicating whether the
// implementation of SetSparse actually does anything.
const SetSparseImplemented = false
// SetSparse makes the file be a sparse file
func SetSparse(out *os.File) error {
return nil