instance method

IO#nonblock?

io.nonblock? → boolean

ext/io/nonblock/nonblock.c View on GitHub ↗

static VALUE
rb_io_nonblock_p(VALUE io)
{
    if (get_fcntl_flags(rb_io_descriptor(io)) & O_NONBLOCK)
        return Qtrue;
    return Qfalse;
}

Returns true if an IO object is in non-blocking mode.

Ruby version changes

See also #nonblock #nonblock= #oflush #path also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0