End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
IO#oflush
io.oflush
ext/io/console/console.c
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static VALUE
console_oflush(VALUE io)
{
rb_io_t *fptr;
int fd;
GetOpenFile(io, fptr);
fd = GetWriteFD(fptr);
#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H
if (tcflush(fd, TCOFLUSH)) sys_fail_fptr(fptr);
#endif
(void)fd;
return io;
}
Flushes output buffer in kernel.
You must require ‘io/console’ to use this method.