struct Entity : public bfd3::IntrusiveListNode<Entity> float x, y; static bfd3::ObjectPool<Entity> Pool; ; bfd3::ObjectPool<Entity> Entity::Pool(1024); // pre-allocate 1024 entities Entity* e = Entity::Pool.allocate(); e->x = 100.0f; // ... use e ... Entity::Pool.deallocate(e); // O(1), no heap call Build a publish-subscribe system using lock-free queues for inter-thread communication.
bfd3::MemoryArena arena(4096); int* data = (int*)arena.alloc(100 * sizeof(int)); data[0] = 42; Bfd3 core library
🚫 Pitfall 1: Forgetting Intrusive Container Node Lifetime If an object with an intrusive list node is destroyed while still in a list, the list's next/prev pointers become dangling. Always remove before destruction. 🚫 Pitfall 2: Mixing Allocators Memory allocated from bfd3::MemoryArena must not be freed with delete . Use the arena's own reset mechanism. ✅ Best Practice: Use RAII Wrappers Even with custom memory, encapsulate allocations in small scope-bound objects. bfd3::MemoryArena arena(4096); int* data = (int*)arena
class ScopedArenaAlloc { bfd3::MemoryArena& arena; public: ScopedArenaAlloc(bfd3::MemoryArena& a) : arena(a) {} void* alloc(size_t sz) return arena.alloc(sz); ~ScopedArenaAlloc() arena.reset(); }; While the Bfd3 name might originally stem from an internal codebase (perhaps a version 3 of a "Base Foundation Development" library), the principles it embodies are timeless. As C++ evolves with features like std::pmr (polymorphic memory resources) and executors, specialized core libraries will continue to offer even more deterministic performance. Use the arena's own reset mechanism
bfd3::MCRingBuffer<Event, 4096> eventBus; // Thread 1 (producer) eventBus.push(EventEventType::MouseMove, data);
// Thread 2 (consumer) Event ev; while (eventBus.pop(ev)) dispatch(ev);