mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
21 lines
561 B
Go
21 lines
561 B
Go
// +build linux
|
|
|
|
package storage
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/storage/backend"
|
|
)
|
|
|
|
func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (backend.BackendStorageFile, error) {
|
|
file, e := os.OpenFile(fileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
|
|
if preallocate != 0 {
|
|
syscall.Fallocate(int(file.Fd()), 1, 0, preallocate)
|
|
glog.V(0).Infof("Preallocated %d bytes disk space for %s", preallocate, fileName)
|
|
}
|
|
return backend.NewDiskFile(file), e
|
|
}
|