PTQ_EMPTY
if (!PTQ_EMPTY(&pthread__deadqueue)) {
if (!PTQ_EMPTY(&self->pt_cleanup_stack)) {
while (!PTQ_EMPTY(&self->pt_cleanup_stack)) {
if ((!PTQ_EMPTY(&ptr->ptr_rblocked)) ||
(!PTQ_EMPTY(&ptr->ptr_wblocked)) ||
if (!PTQ_EMPTY(&ptr->ptr_wblocked))
pthread__assert(PTQ_EMPTY(&pthread__tsd_list[i]));