mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-06-18 08:31:22 +02:00
24 lines
543 B
Go
24 lines
543 B
Go
//go:build linux
|
|
// +build linux
|
|
|
|
package backend
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
|
|
"github.com/seaweedfs/seaweedfs/weed/glog"
|
|
)
|
|
|
|
func CreateVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (BackendStorageFile, error) {
|
|
file, e := os.OpenFile(fileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
|
|
if e != nil {
|
|
return nil, e
|
|
}
|
|
if preallocate != 0 {
|
|
syscall.Fallocate(int(file.Fd()), 1, 0, preallocate)
|
|
glog.V(1).Infof("Preallocated %d bytes disk space for %s", preallocate, fileName)
|
|
}
|
|
return NewDiskFile(file), nil
|
|
}
|