µSockets - miniscule networking & eventing

This is the cross-platform async networking and eventing foundation library used by µWebSockets.

Key aspects

• Built-in (optionally available) TLS support exposed with identical interface as for TCP.
• Acknowledges and integrates with any event-loop via a layered hierarchical design of plugins.
• Extremely pedantic about user space memory footprint and designed to perform as good as can be.
• Designed from scratch to map well to user space TCP stacks or other experimental platforms.
• Low resolution timer system ideal for performant tracking of networking timeouts.
• Minimal yet truly cross-platform, will not emit a billion different platform specific error codes.
• Fully opaque library, inclusion will not completely pollute your global namespace.

Extensible

Designed in layers of abstraction where any one layer depends only on the previous one. Write plugins and swap things out with compiler flags as you see fit.

Available plugins

• Compile with LIBUS_USE_EPOLL to run natively on Linux (the default).
• Compile with LIBUS_USE_LIBUV to run on the libuv event-loop.
• Compile with LIBUS_USE_OPENSSL to use OpenSSL 1.1+ for crypto (the default).
• Compile with LIBUS_NO_SSL to leave the crypto layer unimplemented.