MPT_REPLY_EMPTY
while ((reply_desc = mpt_pop_reply_queue(mpt)) != MPT_REPLY_EMPTY) {
reply_desc = MPT_REPLY_EMPTY;
reply_desc = MPT_REPLY_EMPTY;
reply_desc = MPT_REPLY_EMPTY;
reply_desc = MPT_REPLY_EMPTY;
reply_desc = MPT_REPLY_EMPTY;
if (reply_desc == MPT_REPLY_EMPTY) {