Veldbus

Veldbus is a lightweight cross-platform message bus designed for low-latency inter-process communication and event distribution. It provides APIs for applications to publish and subscribe to topics, send direct messages, and perform request-reply interactions. Veldbus is commonly used to coordinate components in desktop environments, embedded systems, and microservice-like architectures, enabling decoupled communication between software modules.

The project emphasizes efficiency and portability. The core library is typically implemented in C for performance, with language bindings available for C++, Python, Go, JavaScript, and others. Veldbus supports multiple transport backends, such as Unix domain sockets, TCP, and in-memory channels, with a pluggable encoding system for wire formats. Security features may include optional TLS, authentication, and access control policies.

Key features include publish-subscribe messaging, point-to-point delivery, request-reply, signal or event streams, and built-in timeout and error handling. Many deployments offer message introspection, tracing, and monitoring hooks to aid debugging and observability. The design favors a small runtime footprint and the ability to embed the bus in larger applications or to run as a standalone broker.

In typical use, Veldbus runs as either a standalone broker or as an embedded library within client applications. It aims to provide a straightforward API, stable topic namespaces, and predictable performance, making it suitable for modular applications and systems with evolving component sets.

Development and licensing information is maintained in the project's official repository and documentation, which describe installation, contribution guidelines, and current release metadata.