if ($wret == FALSE && $wret !== FALSE) {
printf("TRY FLUSH PendingPage::try_flush: wret 0 but not FALSE [%d]\n", mb_strlen($this->msg, "ASCII"));
}
if ($wret == FALSE && $wret !== FALSE) {
printf("TRY FLUSH PendingPage::try_flush: wret 0 but not FALSE [%d]\n", mb_strlen($this->msg, "ASCII"));
}