close()
public
Closes ios and flushes any pending writes to the operating system.
The stream is unavailable for any further data operations; an IOError is raised if such an attempt is made. I/O
streams are automatically closed when they are claimed by the garbage
collector.
If ios is opened by IO.popen, close
sets $?.
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/*
* call-seq:
* ios.close => nil
*
* Closes <em>ios</em> and flushes any pending writes to the operating
* system. The stream is unavailable for any further data operations;
* an <code>IOError</code> is raised if such an attempt is made. I/O
* streams are automatically closed when they are claimed by the
* garbage collector.
*
* If <em>ios</em> is opened by <code>IO.popen</code>,
* <code>close</code> sets <code>$?</code>.
*/
static VALUE
rb_io_close_m(io)
VALUE io;
{
if (rb_safe_level() >= 4 && !OBJ_TAINTED(io)) {
rb_raise(rb_eSecurityError, "Insecure: can't close");
}
rb_io_check_closed(RFILE(io)->fptr);
rb_io_close(io);
return Qnil;
}