CALLB_CPR_START
cp->cc_events |= CALLB_CPR_START;
cp->cc_events &= ~CALLB_CPR_START;
if ((cp)->cc_events & CALLB_CPR_START) \
while ((cp)->cc_events & CALLB_CPR_START) \
if ((cp)->cc_events & CALLB_CPR_START) \