cameron314/concurrentqueue

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

12466 stars · 1929 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

moodycamel::ConcurrentQueue is a fast, industrial-strength multi-producer multi-consumer lock-free queue for C++11, implemented as a single header. It supports bulk operations, a blocking variant, and is fully portable with no assembly.

Use cases

• pass messages between threads without locks
• implement a work queue for a thread pool
• share data between producers and consumers in C++
• replace Boost.Lockfree or TBB queues with fewer element type restrictions
• enqueue and dequeue items in bulk for high-throughput pipelines

When to choose

• you need a fast, thread-safe MPMC queue in C++11 or later
• you want a header-only dependency with no build step
• you need bulk enqueue/dequeue performance under heavy contention
• your elements have non-trivial constructors, destructors, or assignment operators

When to avoid

• you need strict linearizability or global FIFO ordering across coordinated producers
• you can avoid sharing data between threads entirely
• you need a single-producer single-consumer queue (a simpler specialized queue exists)
• you need a queue with built-in distributed or cross-process semantics

Facets

library · maturity stable

concurrency developer-tools performance cpp cross-platform lock-free queue header-only multi-producer multi-consumer thread-safe cpp11 algorithms

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