PORT_Assert(ssl_HaveXmitBufLock(ss));
PORT_Assert(ss->opt.noLocks || ssl_HaveXmitBufLock(ss));
ssl2_GetSendBuffer(sslSocket *ss, unsigned int len){    SECStatus rv = SECSuccess;    PORT_Assert(ssl_HaveXmitBufLock(ss));    if (len < 128) {	len = 128;    }    if (len > ss->sec.ci.sendBuf.space) {	rv = sslBuffer_Grow(&ss->sec.ci.sendBuf, len);	if (rv != SECSuccess) {	    SSL_DBG(("%d: SSL[%d]: ssl2_GetSendBuffer failed, tried to get %d bytes",		     SSL_GETPID(), ss->fd, len));	    rv = SECFailure;	}    }    return rv;}