src/base/circular_queue.hh

90     const uint32_t _capacity;
129         v = moduloAdd(v, delta, _capacity);
134         v = (v ? v : _capacity) - 1;
414         : _capacity(size), _head(1), _tail(0), _empty(true), _round(0)
495     size_t capacity() const { return _capacity; }
504             return _capacity - _head + _tail + 1;
509         return moduloAdd(s1, s2, _capacity);
514         return moduloSub(s1, s2, _capacity);
588             (_tail + 1 == _head || (_tail + 1 == _capacity && _head == 0));
650         } else if (idx < _head && _tail + 1 == _capacity) {