db_inc_dec
db_inc_dec(expr, param, key, ATOMIC_INC);
db_inc_dec(expr, param, key, ATOMIC_DEC);
db_inc_dec(expr, 0, "$->counter", ATOMIC_INC);
db_inc_dec(expr, 0, "$->counter", ATOMIC_DEC);
db_inc_dec(expr, 1, "$->counter", ATOMIC_DEC);
db_inc_dec(expr, 1, "$->counter", ATOMIC_INC);
db_inc_dec(expr, 1, "$->counter", ATOMIC_DEC);
db_inc_dec(expr, PTR_INT(param), "$->ref.counter", ATOMIC_INC);
db_inc_dec(expr, PTR_INT(param), "$->ref.counter", ATOMIC_DEC);
db_inc_dec(expr, PTR_INT(param), "$->power.usage_count.counter", ATOMIC_INC);
db_inc_dec(call_expr, PTR_INT(param), "$->ref.counter", ATOMIC_INC);
db_inc_dec(call_expr, PTR_INT(param), "$->counter", ATOMIC_DEC);