private boolean smb2 = false;
    private InetAddress localAddr;
    private int localPort;
    private Address address;
    private Socket socket;
    private int port;
    private final AtomicLong mid = new AtomicLong();
    private OutputStream out;
    private InputStream in;
    private final byte[] sbuf = new byte[1024]; /* small local buffer */
    private long sessionExpiration;

video/3gp=3gp\n\
video/3g2=3g2\n\
video/x-msvideo=avi\n\
video/x-flv=flv\n\
video/mpeg=mpeg\n\
video/mp4=mp4\n\
video/ogv=ogv\n\
video/quicktime=qt\n\
video/x-m4v=m4v\n\
audio/x-aif=aif\n\
audio/midi=midi\n\
audio/mpga=mpga\n\
audio/mp4=mp4a\n\
audio/ogg=oga\n\
audio/x-wav=wav\n\
image/webp=webp\n\
image/bmp=bmp\n\
image/x-icon=ico\n\
image/x-icon=ico\n\
image/png=png\n\
image/svg+xml=svg\n\

labels.facet_filetype_m4v=M4V Video
labels.facet_filetype_ogg=OGG Audio
labels.facet_filetype_wav=WAV Audio
labels.facet_filetype_webp=WebP Audio
labels.facet_filetype_aif=AIF Audio
labels.facet_filetype_midi=MIDI Audio
labels.facet_filetype_mpga=MPGA Audio
labels.facet_filetype_mp4a=MP4A Audio
labels.facet_filetype_oga=OGA Audio
labels.facet_filetype_wepb=WEBP Image
labels.facet_filetype_bmp=BMP Image

labels.facet_filetype_m4v=M4V Video
labels.facet_filetype_ogg=OGG Audio
labels.facet_filetype_wav=WAV Audio
labels.facet_filetype_webp=WebP Audio
labels.facet_filetype_aif=AIF Audio
labels.facet_filetype_midi=MIDI Audio
labels.facet_filetype_mpga=MPGA Audio
labels.facet_filetype_mp4a=MP4A Audio
labels.facet_filetype_oga=OGA Audio
labels.facet_filetype_wepb=WEBP Image
labels.facet_filetype_bmp=BMP Image

Muchos, muchos usuarios, pero el servidor está esperando 🕙 el envío de las peticiones ya que su conexión no es buena.

Y luego esperando 🕙 nuevamente a que las respuestas retornen.

Esta "espera" 🕙 se mide en microsegundos, pero aun así, sumando todo, al final es mucha espera.

Es por eso que tiene mucho sentido usar código asíncrono ⏸🔀⏯ para las API web.

labels.facet_filetype_m4v=M4V Video
labels.facet_filetype_ogg=OGG Audio
labels.facet_filetype_wav=WAV Audio
labels.facet_filetype_webp=WebP Audio
labels.facet_filetype_aif=AIF Audio
labels.facet_filetype_midi=MIDI Audio
labels.facet_filetype_mpga=MPGA Audio
labels.facet_filetype_mp4a=MP4A Audio
labels.facet_filetype_oga=OGA Audio
labels.facet_filetype_wepb=WEBP Image
labels.facet_filetype_bmp=BMP Image

labels.facet_filetype_m4v	=	M4V Video
labels.facet_filetype_ogg	=	OGG Audio
labels.facet_filetype_wav	=	WAV Audio
labels.facet_filetype_webp	=	WebP Audio
labels.facet_filetype_aif	=	AIF Audio
labels.facet_filetype_midi	=	MIDI Audio
labels.facet_filetype_mpga	=	MPGA Audio
labels.facet_filetype_mp4a	=	MP4A Audio
labels.facet_filetype_oga	=	OGA Audio
labels.facet_filetype_wepb	=	WEBP Image
labels.facet_filetype_bmp	=	BMP Image

labels.facet_filetype_m4v=M4V-Video
labels.facet_filetype_ogg=OGG-Audio
labels.facet_filetype_wav=WAV-Audio
labels.facet_filetype_webp=WebP-Audio
labels.facet_filetype_aif=AIF-Audio
labels.facet_filetype_midi=MIDI-Audio
labels.facet_filetype_mpga=MPGA-Audio
labels.facet_filetype_mp4a=MP4A-Audio
labels.facet_filetype_oga=OGA-Audio
labels.facet_filetype_wepb=WEBP-Bild
labels.facet_filetype_bmp=BMP-Bild

labels.facet_filetype_qt = QuickTime 비디오
labels.facet_filetype_m4v = M4V 비디오
labels.facet_filetype_ogg = OGG 오디오
labels.facet_filetype_wav = WAV 오디오
labels.facet_filetype_aif = AIF 오디오
labels.facet_filetype_midi = MIDI 오디오
labels.facet_filetype_mpga = MPGA 오디오
labels.facet_filetype_mp4a = MP4A 오디오
labels.facet_filetype_oga = OGA 오디오
labels.facet_filetype_wepb = WEBP 이미지
labels.facet_filetype_bmp = BMP 이미지

     * video/x-flv=flv<br>
     * video/mpeg=mpeg<br>
     * video/mp4=mp4<br>
     * video/ogv=ogv<br>
     * video/quicktime=qt<br>
     * video/x-m4v=m4v<br>
     * audio/x-aif=aif<br>
     * audio/midi=midi<br>
     * audio/mpga=mpga<br>
     * audio/mp4=mp4a<br>
     * audio/ogg=oga<br>
     * audio/x-wav=wav<br>
     * image/webp=webp<br>
     * image/bmp=bmp<br>
     * image/x-icon=ico<br>