msyncvoid

msyncvoid is a cross-platform, open-source library designed to provide portable memory synchronization primitives for multi-process and multi-threaded applications. It focuses on coordinating access to shared memory regions and opaque memory buffers in a way that is independent of data types, hence the name’s combination of memory synchronization and a void-typed interface.

The library defines a memory-domain abstraction that can be mapped into participating processes. It offers synchronization primitives such as barriers, guards, and notification events, implemented on top of underlying operating system facilities like POSIX shared memory and Windows memory-mapped files. The API is type-agnostic, using void pointers to describe memory regions, with helpers for size, alignment, and lifetime management. msyncvoid aims for low overhead, reproducible behavior across platforms, and deterministic memory visibility in concurrent workloads.

Usage and API are designed to be minimal yet expressive. The core interface typically includes functions to create and map a memory domain, establish synchronization cycles, perform work with synchronized access, trigger barriers or notifications, optionally flush changes to durable storage, and unmap resources. A typical workflow involves initializing the domain, mapping regions, executing synchronized operations, coordinating with barriers, and cleaning up. The library provides optional hooks for persistence to storage to support fault-tolerant configurations.

History and license: msyncvoid originated as a research-oriented project within the Open Void Foundation ecosystem and evolved into an open-source effort. It is released under the MIT License to encourage adoption and collaboration. The project maintains a public repository with documentation, example codes, benchmarks, and contribution guidelines.

See also: memory-mapped files, msync, interprocess communication, concurrency primitives.