OpenSSL::SSL::Session#==

static VALUE ossl_ssl_session_eq(VALUE val1, VALUE val2)
{
    SSL_SESSION *ctx1, *ctx2;

    GetSSLSession(val1, ctx1);
    GetSSLSession(val2, ctx2);

    switch (ossl_SSL_SESSION_cmp(ctx1, ctx2)) {
      case 0:         return Qtrue;
      default:        return Qfalse;
    }
}