Pro feature

Order book — low-level design

The critical path, structure by structure: the bitmask order index, the pre-allocated record pool, the lock-free snapshot.

• ✓Animated NEW / MODIFY / CANCEL / TRADE through the real structures
• ✓How updates stay ultra-low-latency: no malloc, lock or syscall
• ✓How the event fires — single writer per book, lock-free readers