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local: factor PreAllocate and SetSparse to lib/file

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This commit is contained in:
Nick Craig-Wood 2020-03-24 16:26:45 +00:00
parent 1f50b70919
commit 36d2c46bcf
5 changed files with 28 additions and 28 deletions
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6
backend/local/local.go
View File

@ -977,7 +977,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
}
}
// Pre-allocate the file for performance reasons
err = preAllocate(src.Size(), f)
err = file.PreAllocate(src.Size(), f)
if err != nil {
fs.Debugf(o, "Failed to pre-allocate: %v", err)
}
@ -1064,12 +1064,12 @@ func (f *Fs) OpenWriterAt(ctx context.Context, remote string, size int64) (fs.Wr
return nil, err
}
// Pre-allocate the file for performance reasons
err = preAllocate(size, out)
err = file.PreAllocate(size, out)
if err != nil {
fs.Debugf(o, "Failed to pre-allocate: %v", err)
}
// Set the file to be a sparse file (important on Windows)
err = setSparse(out)
err = file.SetSparse(out)
if err != nil {
fs.Debugf(o, "Failed to set sparse: %v", err)
}

15
backend/local/preallocate_other.go
View File

@ -1,15 +0,0 @@
//+build !windows,!linux
package local
import "os"
// preAllocate the file for performance reasons
func preAllocate(size int64, out *os.File) error {
return nil
}
// setSparse makes the file be a sparse file
func setSparse(out *os.File) error {
return nil
}

15
lib/file/preallocate_other.go Normal file
View File

@ -0,0 +1,15 @@
//+build !windows,!linux
package file
import "os"
// PreAllocate the file for performance reasons
func PreAllocate(size int64, out *os.File) error {
return nil
}
// SetSparse makes the file be a sparse file
func SetSparse(out *os.File) error {
return nil
}

10
backend/local/preallocate_unix.go → lib/file/preallocate_unix.go
View File

@ -1,6 +1,6 @@
//+build linux
package local
package file
import (
"os"
@ -18,8 +18,8 @@ var (
fallocFlagsIndex int32
)
// preAllocate the file for performance reasons
func preAllocate(size int64, out *os.File) error {
// PreAllocate the file for performance reasons
func PreAllocate(size int64, out *os.File) error {
if size <= 0 {
return nil
}
@ -45,7 +45,7 @@ again:
return err
}
// setSparse makes the file be a sparse file
func setSparse(out *os.File) error {
// SetSparse makes the file be a sparse file
func SetSparse(out *os.File) error {
return nil
}

10
backend/local/preallocate_windows.go → lib/file/preallocate_windows.go
View File

@ -1,6 +1,6 @@
//+build windows
package local
package file
import (
"os"
@ -32,8 +32,8 @@ type ioStatusBlock struct {
Status, Information uintptr
}
// preAllocate the file for performance reasons
func preAllocate(size int64, out *os.File) error {
// PreAllocate the file for performance reasons
func PreAllocate(size int64, out *os.File) error {
if size <= 0 {
return nil
}
@ -82,8 +82,8 @@ const (
FSCTL_SET_SPARSE = 0x000900c4
)
// setSparse makes the file be a sparse file
func setSparse(out *os.File) error {
// SetSparse makes the file be a sparse file
func SetSparse(out *os.File) error {
err := syscall.DeviceIoControl(syscall.Handle(out.Fd()), FSCTL_SET_SPARSE, nil, 0, nil, 0, nil, nil)
if err != nil {
return errors.Wrap(err, "DeviceIoControl FSCTL_SET_SPARSE")