spsc_shm.hpp File Reference

Single-producer/single-consumer shared-memory ring buffer (Linux, x86-64 optimized) More...

#include <array>
#include <atomic>
#include <cstddef>
#include <cstdint>
#include <string>

Go to the source code of this file.

Classes
struct	bb::ipc::SpscCtrl
	Control structure for SPSC ring buffer. More...
class	bb::ipc::SpscShm
	Lock-free single-producer single-consumer shared memory ring buffer. More...

Namespaces
namespace	bb
	Entry point for Barretenberg command-line interface.
namespace	bb::ipc

Variables
constexpr size_t	bb::ipc::SPSC_CACHELINE = 64

Detailed Description

Single-producer/single-consumer shared-memory ring buffer (Linux, x86-64 optimized)

• Zero-copy between processes via MAP_SHARED
• One producer, one consumer. No locks. Hot path has no syscalls
• Adaptive spin, then futex sleep/wake on empty/full transitions
• Variable-length message framing

Definition in file spsc_shm.hpp.