func (ms *mmapStorage) WriteAt(p []byte, off int64) (n int, err error) {
// err = fs.Lock(int(off), len(p))
// if err != nil {
// return 0, err
// }
// defer fs.Unlock(int(off), len(p))
// return wrat(fs.fileHandle, p, off)//fs.f.WriteAt(p, off)
if int(off)+len(p) >= ms.length {
err = ms.Close()
if err != nil {
return 0, err
}
fStor := adapters.NewFileStorage(ms.name)
err = fStor.Open()
if err != nil {
return 0, err
}
n, err = fStor.WriteAt(p, off)
if err != nil {
return 0, err
}
err = fStor.Close()
if err != nil {
return 0, err
}
err = ms.Open()
if err != nil {
return 0, err
}
return n, nil
}
return ms.mStor.WriteAt(p, off)
}
func BenchmarkUpdateFileStorage(b *testing.B) {
benchmarkUpdate(b, adapters.NewFileStorage(newTestFile("writebnch", b.N)))
}