eclipse-cyclonedds/cyclonedds

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1327 stars · 477 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Eclipse Cyclone DDS is a performant, robust open-source C implementation of the OMG DDS (Data Distribution Service) publish-subscribe middleware specification. It serves as a tier-1 middleware for ROS 2 and includes an IDL compiler for defining typed data exchanged between distributed nodes.

Use cases

• implement publish-subscribe messaging between distributed applications
• use DDS middleware for ROS 2 robot communication
• exchange typed data over the network with QoS policies
• build real-time distributed systems for IoT or embedded devices
• compile IDL data types into C code for DDS topics
• replace MQTT or message brokers with brokerless peer-to-peer messaging

When to choose

• you need a standards-compliant, high-performance DDS implementation
• you are building ROS 2 applications and want a reliable tier-1 middleware
• you need brokerless, low-latency pub-sub with fine-grained QoS control
• you work in domains like robotics, aerospace, or industrial control requiring robust real-time messaging

When to avoid

• you need simple request-reply HTTP APIs rather than pub-sub data distribution
• you want a lightweight message queue with a central broker and simple clients
• your team cannot work with C libraries or IDL tooling
• you need a managed cloud messaging service

Facets

library · maturity stable

message-queue middleware networking serialization rpc microservices iot robotics windows cpp python cross-platform dds pub-sub ros2 idl eclipse-iot data-distribution-service real-time messaging linux macos

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