PUFFS_STATE_RUNNING
PU_SETSTATE(pu, PUFFS_STATE_RUNNING);
assert(puffs_getstate(pu) == PUFFS_STATE_RUNNING);
is_beforemount = (puffs_getstate(pu) < PUFFS_STATE_RUNNING);
PU_SETSTATE(pu, PUFFS_STATE_RUNNING);
assert(puffs_getstate(pu) < PUFFS_STATE_RUNNING);
assert(puffs_getstate(pu) >= PUFFS_STATE_RUNNING);
if (puffs_getstate(pu) != PUFFS_STATE_RUNNING)