QTF_OPENING
while ((ump->umq1_qflags[type] & (QTF_CLOSING | QTF_OPENING)) != 0)
ump->umq1_qflags[type] |= QTF_OPENING;
ump->umq1_qflags[type] &= ~QTF_OPENING;
while ((ump->umq1_qflags[type] & (QTF_CLOSING | QTF_OPENING)) != 0)
while ((ump->umq1_qflags[type] & (QTF_CLOSING | QTF_OPENING)) != 0)
ump->umq1_qflags[type] |= QTF_OPENING;
ump->umq1_qflags[type] &= ~QTF_OPENING;
while ((ump->umq1_qflags[type] & (QTF_CLOSING | QTF_OPENING)) != 0)