| 1234567891011121314151617181920212223 | // +build 386 amd64 s390 s390xpackage bufimport (	"io"	"syscall")func newReaderPlatform(reader io.Reader) Reader {	if useReadv {		if sc, ok := reader.(syscall.Conn); ok {			rawConn, err := sc.SyscallConn()			if err != nil {				newError("failed to get sysconn").Base(err).WriteToLog()			} else {				return NewReadVReader(reader, rawConn)			}		}	}	return NewBytesToBufferReader(reader)}
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