�Como puedo hacer en C que una llamada a read() no sea bloqueante?
En el man veo esto, pero no se donde o como lo tengo que definir.

ERRORS
      EINTR  The call was interrupted by  a  signal  before  any
             data was read.

      EAGAIN Non-blocking I/O has been selected using O_NONBLOCK
             and no data was immediately available for  reading.

�Como puedo usar el O_NONBLOCK? �donde tengo que ponerlo?


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