End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

ARGF#read_nonblock

ARGF.read_nonblock(maxlen[, options]) → string

ARGF.read_nonblock(maxlen, outbuf[, options]) → outbuf

static VALUE
argf_read_nonblock(int argc, VALUE *argv, VALUE argf)
{
    VALUE opts;

    rb_scan_args(argc, argv, "11:", NULL, NULL, &opts);

    if (!NIL_P(opts))
        argc--;

    return argf_getpartial(argc, argv, argf, opts, 1);
}

Reads at most maxlen bytes from the ARGF stream in non-blocking mode.

See also #readlines #readpartial #readline #rewind also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0

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