reflector.go/store/diskstore_put_linux.go

52 lines
907 B
Go
Raw Normal View History

2022-05-08 10:24:55 +02:00
//go:build linux
// +build linux
package store
import (
"bytes"
"io"
"os"
"syscall"
"github.com/lbryio/lbry.go/v2/extras/errors"
"github.com/lbryio/lbry.go/v2/stream"
"github.com/brk0v/directio"
)
var openFileFlags = os.O_WRONLY | os.O_CREATE | syscall.O_DIRECT
// Put stores the blob on disk
func (d *DiskStore) Put(hash string, blob stream.Blob) error {
err := d.initOnce()
if err != nil {
return err
}
err = d.ensureDirExists(d.dir(hash))
if err != nil {
return err
}
// Open file with O_DIRECT
f, err := os.OpenFile(d.tmpPath(hash), openFileFlags, 0644)
if err != nil {
return errors.Err(err)
}
defer f.Close()
dio, err := directio.New(f)
if err != nil {
return errors.Err(err)
}
defer dio.Flush()
_, err = io.Copy(dio, bytes.NewReader(blob))
if err != nil {
return errors.Err(err)
}
err = os.Rename(d.tmpPath(hash), d.path(hash))
return errors.Err(err)
}