GNUnet Worker 1.0.0 14 Jul 2022

As it is often the case with network applications, GNUnet is built following a single-threaded event-driven model. This is an optimal model when dealing with high concurrency scenarios, but can be problematic in other contexts (like, for example, graphical user interfaces, which normally have their own event loop). To accomplish its event-driven flow, GNUnet uses a scheduler. Once such scheduler is started, it is not designed to be invoked by other threads, but can schedule only routines requested by its own thread. What to do then if an application needs to deal with multiple threads and let the latter interface with GNUnet's scheduler? This framework offers a simple solution by creating a “bearing” between the threads and the scheduler. The latter is run in its own dedicated thread and is unaware of the existence of other threads. Such a bearing consists in a “wish list” of routines to schedule, which can be populated asynchronously by any thread and gets emptied synchronously only by the scheduler according to the latter's natural flow.

major feature: (2022-07-13). Changes: Version 0.5.0 can now be considered stable; the version string has been updated to 1.0.0. The public header has been moved back into the `src` subdirectory.

Affero GPLv3 c event-loop gnunet gnu library multithreading shared-library threads unix