Bfd3 Core Library -

bfd3::MemoryArena arena(4096); int* data = (int*)arena.alloc(100 * sizeof(int)); data[0] = 42;

#include <bfd3/MemoryArena.h> bfd3::MemoryArena arena(1024 * 1024); // 1 MB arena void* buffer = arena.alloc(256); // allocate 256 bytes arena.reset(); // free all allocations at once Bfd3 core library

bfd3::MCRingBuffer<int, 1024> queue; queue.push(42); // lock-free, safe from multiple threads int value; if (queue.pop(value)) ... Heap-allocated strings are a common source of fragmentation and performance issues. The Bfd3 core library provides a fixed-capacity string that lives entirely on the stack (or inside any other object). bfd3::MemoryArena arena(4096); int* data = (int*)arena

🚫 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. 🚫 Pitfall 1: Forgetting Intrusive Container Node Lifetime

bfd3::BinaryWriter writer(bfd3::Endian::Little); writer.write<uint32_t>(0x12345678); writer.writeString("hello"); auto bytes = writer.data(); In a controlled benchmark (x86_64, GCC 12, O3 optimization), the Bfd3 core library often outperforms equivalent STL constructs in specific metrics.

While many developers are familiar with standard libraries (STL), Boost, or Qt, the Bfd3 core library represents a niche yet powerful alternative designed for scenarios where control, speed, and minimal overhead are paramount. This article explores what the Bfd3 core library is, its architectural principles, core components, use cases, and why it deserves a place in your development toolkit. The Bfd3 core library is a lightweight, modular, and highly optimized collection of fundamental C++ components. Although the name "Bfd3" may refer to an internal or specialized framework (often associated with proprietary middleware, legacy system maintenance, or custom real-time environments), the principles underlying such a library are universally valuable.

This pattern is a game-changer for per-frame allocations in games or message processing in servers. Unlike STL containers that own their elements, intrusive containers require the element type to embed the linking pointers. This allows an object to belong to multiple containers simultaneously and avoids separate heap allocations for nodes.