ev/read

    cfunction
    src/core/ev.c on line 3021, column 1

    (ev/read stream n &opt buffer timeout)

    Read up to n bytes into a buffer asynchronously from a stream. `n` 
    can also be the keyword `:all` to read into the buffer until end of 
    stream. Optionally provide a buffer to write into as well as a 
    timeout in seconds after which to cancel the operation and raise an 
    error. Returns the buffer if the read was successful or nil if 
    end-of-stream reached. Will raise an error if there are problems 
    with the IO operation.