func (cmd *cmdDump) DumpRDBFile(reader *bufio.Reader, writer *bufio.Writer, nsize int64) {
var nread atomic2.Int64
wait := make(chan struct{})
go func() {
defer close(wait)
p := make([]byte, WriterBufferSize)
for nsize != nread.Get() {
cnt := iocopy(reader, writer, p, int(nsize-nread.Get()))
nread.Add(int64(cnt))
}
flushWriter(writer)
}()
for done := false; !done; {
select {
case <-wait:
done = true
case <-time.After(time.Second):
}
n := nread.Get()
p := 100 * n / nsize
log.Infof("total = %d - %12d [%3d%%]\n", nsize, n, p)
}
log.Info("dump: rdb done")
}
